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Mayila E, Mzula A, Rumisha C, Leermakers M, Huyghe F, Kochzius M. Status of trace metals and arsenic in sediments and catfish muscles (Clarias gariepinus) from the Eastern Tanzanian basin. PLoS One 2024; 19:e0306335. [PMID: 39208341 PMCID: PMC11361695 DOI: 10.1371/journal.pone.0306335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/12/2024] [Indexed: 09/04/2024] Open
Abstract
Trace metals and metalloids are groups of chemical elements that naturally occur in low concentrations and cycle in the environment driven by natural processes and human activities. They have a persistent and bio-accumulative tendency in the environment, and certain trace metals and metalloids have become a public health concern. This study assesses the concentration of eleven trace metals and a metalloid in sediments and catfish muscle from five study sites in the Eastern Tanzanian River basin. Forty catfish tissues and fifteen sediment samples were collected and analyzed using ICP-MS. Concentrations of As, Cd, Co, Pb, and Zn did not exceed the United States Environmental Protection Agency (USEPA) guideline for pollution of sediments, while Al Cr, Al, Mn, and V with values ranging from (118.54 to 70154.55) indicating moderately polluted. The stations Java-Sadaani and Matandu showed the highest Cr, Ni, and Cu concentrations, but the potential ecological risk index (RI) was low (RI < 95). In the catfish muscle tissue, the levels of Cd, Pb, Cu, and Zn did not surpass the EU and FAO/WHO limits and results ranged from 2.22 to 35.22mg/kg. Low levels of accumulation of Cd, Pb, and As were found in this study compared to catfish muscles from other studies, whereas the concentrations of other trace metals and metalloids analyzed had comparable results. Biota/sediment accumulation factors (BSAF) were all < 1. The weekly metal intake (MWI) results ranged from 6.89E-04 to 2.43E+01 μg/know-1week-1, indicating a low risk as the value did not exceed the FAO/WHO established Permissible Tolerable Weekly Intake (PTWI). The non-carcinogenic health risk result THQ was 4.43E-02 and the carcinogenic health risks result HI was 4.42E-05 which indicated tolerable levels of risks as both the values of the Target Hazard Quotient (THQ) and the Hazard Index (HI) was < 1, and the carcinogenic target risk (TR) is < 0.0001. The highest TR values were observed for Cr and Ni. We recommend a continued monitoring of the changes in trace metal levels in the environment and biota together with continuous public health education on the dangers of high levels of trace metals.
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Affiliation(s)
- Edward Mayila
- Department of Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture (SUA), Morogoro, Tanzania
- Marine Biology – Ecology, Evolution & Genetics, Biology Department, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Alexanda Mzula
- Department of Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture (SUA), Morogoro, Tanzania
| | - Cyrus Rumisha
- Department of Animal, Aquaculture and Range Sciences, Sokoine University of Agriculture (SUA), Morogoro, Tanzania
| | - Martine Leermakers
- Analytical, Environmental and Geochemistry (AMGC), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Filip Huyghe
- Marine Biology – Ecology, Evolution & Genetics, Biology Department, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Marc Kochzius
- Marine Biology – Ecology, Evolution & Genetics, Biology Department, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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Ekperusi AO, Asiwa DO. Trophodynamics and health risk assessment of heavy metals in seafood from a tropical estuary in the gulf of Guinea. ENVIRONMENTAL RESEARCH 2024; 252:118977. [PMID: 38649017 DOI: 10.1016/j.envres.2024.118977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/16/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Seafood is an essential protein source for coastal communities. However, they can accumulate heavy metals from human activities which could pose a potential health risk to consumers. In this study, we investigated the distribution, bioaccumulation, trophic transfer and potential human health risk of heavy metals in sediments, shell and fin fish collected from the Escravos Estuary in southern Nigeria. Heavy metals (Ni, Cd, V, Pb and Cu) in sediments, periwinkles and tongue soles from the two study sites were lower than the permissible limits for fishery products. The metal distribution in fish tissues was in the decreasing order of liver > gills > muscles > gonads > rest of the fish. Moderate to high BSAF (>1) was reported for Cd, Pb and Cu. All the studied metals, except Pb, showed evidence of biomagnification from periwinkle to tongue sole. The estimated daily intake (EDI) and hazard ratio (HR) for metals in periwinkles from both study sites were lower or within the USEPA reference doses (RfD) for the respective daily intake and HR value < 1, except for Cd, V and Pb for children. In contrast, EDI values in the muscle of tongue soles were higher than the RfD values for heavy metals except for Ni and Pb, whereas HR values > 1 except for Ni, Cd and V. In the whole fish, EDI and HR values were disproportionately high in both study sites with higher values reported for children. This study provides the first insights on the trophic transfer and risk assessment of heavy metals from petroleum and gas operations impacting the Escravos Estuary and the implications to public health.
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Affiliation(s)
- Abraham O Ekperusi
- Department of Environmental Management and Pollution, Faculty of Environmental Management, Nigeria Maritime University, Okerenkoko, 332105, Delta State, Nigeria.
| | - David O Asiwa
- Department of Environmental Management and Pollution, Faculty of Environmental Management, Nigeria Maritime University, Okerenkoko, 332105, Delta State, Nigeria
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Sigamani S, J A D, Y T DM, S S, U B, Kolandhasamy P, Syed A, Elgorban AM. Bioaccumulation and health risk of metal contamination from different tiers of food chain in Ennore estuary, Southeast coast of India. MARINE POLLUTION BULLETIN 2024; 200:116154. [PMID: 38364646 DOI: 10.1016/j.marpolbul.2024.116154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/05/2024] [Accepted: 02/09/2024] [Indexed: 02/18/2024]
Abstract
The concentration and bioaccumulation of heavy metals were investigated in four distinct components (water, sediment, benthic organisms, and fish) in the Ennore estuary. The average concentration of studied metals in water is 2-5 times higher in the sediment. The geoaccumulation index in the sediment, particularly for Cd, 55 folds greater than WHO and USEPS standards. The indices like MI, Cdeg, PLI, and PERI demonstrated low contamination levels, whereas Igeo and Cf revealed elevated levels of cadmium (Cd), signifying a moderate degree of contamination. Human health indices like Target Hazard Quotation (THQ) values generally fell within permissible limits (<1), except for lead (Pb) and iron (Fe). However, HI values exceeded 1, indicating a non-carcinogenic health risk for consumers. The Target Risk for lead (TRPb) value for Oreochromis urolepis was 1.0 × 10-5, suggesting a significant cancer risk and may leads to other fish species in future if carcinogenic metals bioaccumulation.
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Affiliation(s)
- Sivaraj Sigamani
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, India.
| | - Dhrisha J A
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, India
| | - Dony Miraclin Y T
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, India
| | - Subiksha S
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, India
| | - Balaji U
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, India
| | - Prabhu Kolandhasamy
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
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Hellar-Kihampa H. Reviewing the interdecadal dynamics of micropollutants in the Tanzanian coastal zone from 2002 to 2022. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12647-12665. [PMID: 38240978 DOI: 10.1007/s11356-024-31839-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/30/2023] [Indexed: 02/23/2024]
Abstract
The Tanzanian coast is a vastly diversified ecosystem offering ecological, cultural, and economic services. However, anthropogenic and environmental stressors threaten its productivity and sustainability, prompting extensive research to understand the contamination extent, sources, and impacts. This review covers 77 original field research studies published between 2002 and 2022, focusing on the Tanzanian coastal area. A summary of information on the occurrences, levels, distributions, sources, and impacts of organic and inorganic micropollutants in environmental and biological compartments is provided. The studies were further discussed based on their research focus, where seven key areas were identified, which included the types of micropollutants analyzed, the parameters sampled, the locations investigated, and the crucial conclusions reached. The aim was to evaluate the research trends and identify gaps for future investigations. The studies reveal varying contamination levels, from low to severe, encompassing metals, persistent organic pollutants, pesticide residues, nutrients, and microbial contaminants. However, data gaps exist for micropollutant concentrations in ambient air, microplastics, pharmaceuticals, and emerging contaminants of concern. With increasing urbanization and socio-economic activities, the review emphasizes the necessity for solution-based research to remove and control micropollutants in the area. Addressing these challenges is crucial for sustaining the diverse ecological nature of this vital coastal system.
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Affiliation(s)
- Harieth Hellar-Kihampa
- Faculty of Science, Technology and Environmental Studies, The Open University of Tanzania, PO Box 23409, Dar Es Salaam, Tanzania.
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Ben-Haddad M, Abelouah MR, Lamine I, Hajji S, Noureddine S, Rangel-Buitrago N, Ait Alla A. Trace metals in urbanized coasts: The central Atlantic of Morocco as a case study. MARINE POLLUTION BULLETIN 2023; 186:114455. [PMID: 36473246 DOI: 10.1016/j.marpolbul.2022.114455] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/21/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
This study describes the contamination, accumulation, and ecological risk assessment of five trace metals (Cd, Pb, Cu, Zn, and Cr) in sediments of an urbanized beach in the central Atlantic coastline of Morocco. The two-year investigation (2018 and 2019) included six sampling sites along a 6 km coastal reach. In both years, none of the studied trace metals exceeded the background or the sediment quality guidelines (SQGs). The eco-toxicological indices revealed low degree of contamination, unpolluted ecosystem, and low ecological risk of metals. However, Cd exceeded the background value and some SQGs following the increase of anthropogenic activities in 2019. Likewise, it indicated unpolluted to moderately polluted sediment as well as moderate ecological risk. Overall, it is highly recommended to mitigate the avoidable anthropogenic activities (marine litter generation, sewage discharge, intense urbanization, and vehicle traffic on the beach) that lead to the elevation of metal pollution in the study area.
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Affiliation(s)
- Mohamed Ben-Haddad
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco.
| | - Mohamed Rida Abelouah
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
| | - Imane Lamine
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
| | - Sara Hajji
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
| | - Slimani Noureddine
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
| | - Nelson Rangel-Buitrago
- Programa de Física, Facultad de Ciencias Basicas, Universidad del Atlantico, Barranquilla, Atlantico, Colombia; Programa de Biologia, Facultad de Ciencias Basicas, Universidad del Atlantico, Barranquilla, Atlantico, Colombia
| | - Aicha Ait Alla
- Laboratory of Aquatic Systems, Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
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Wu HY, Fu SF, Hu WJ, Chen FG, Cai XQ, Chen QH, Wu YB. Response of different benthic biotic indices to eutrophication and sediment heavy metal pollution, in fujian coastal water, East China sea. CHEMOSPHERE 2022; 307:135653. [PMID: 35835246 DOI: 10.1016/j.chemosphere.2022.135653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/16/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
The types and intensity of anthropogenic pressure in the same sea area may differ spatially and may change as time passes, but response of benthic biotic indices to different pressure is different, which makes it unreasonable to use the same benthic biotic indices in a large sea area. We provided a new way of thinking as to selecting benthic biotic indices according to pressure type. The study took six bays under eutrophication and sediment heavy metal pollution to different levels in Fujian coastal water, East China sea, as examples, analysed the response of five benthic biotic indices, namely AZTI marine biotic index (AMBI), multivariate AMBI (M-AMBI), Shannon-Wiener diversity index (H'), benthic opportunistic polychaetes amphipods (BOPA) and benthic polychaetes amphipods (BPA), to eutrophication factors and sediment heavy metal pollution factors firstly. The result indicated that AMBI well responded to dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP); M-AMBI responded soundly in the range of DIN >0.131 mg L-1 and DIP >0.022 mg L-1 and responded universally to heavy metals; H' responded to only Hg and Cd; BOPA has response to eutrophication condition of DIN >0.242 mg L-1; BPA had response to DIN, Cu and As. Then, suitable indices were selected based on the four pressure scenarios in the study area. AMBI was selected in no pressure scenario; M-AMBI was chosen under only eutrophication pressure and under dual pressure; H' was preferred in only heavy metal pressure scenario (mainly Hg pollution). At last, the density plot of the distribution of the selected indices in the evaluation grades under different pressure scenarios proved the proposal of selecting benthic biotic indices according to pressure types feasible. This study can offer some new insights into rapidly choosing indices to evaluate the coastal benthic ecological quality status.
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Affiliation(s)
- Hai-Yan Wu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Shi-Feng Fu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China.
| | - Wen-Jia Hu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Feng-Gui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Xiao-Qiong Cai
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Qing-Hui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Yi-Biao Wu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
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Özkan EY, Fural Ş, Kükrer S, Büyükışık HB. Seasonal and spatial variations of ecological risk from potential toxic elements in the southern littoral zone of İzmir Inner Gulf, Turkey. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62669-62689. [PMID: 35411511 DOI: 10.1007/s11356-022-19987-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
This study aims to investigate the ecological risk level of potentially toxic elements (PTEs) in İzmir Inner Gulf. Samples were taken from 16 stations selected in the southern littoral zone of the gulf for four seasons (winter, spring, summer, and autumn). Multi-element, total organic carbon, chlorophyll-a, biogenic silica and carbonate analyses were carried out. To determine contamination level and ecological risks, some indices (enrichment factor, modified hazard quotient and potential risk analysis, toxic risk index, etc.) were calculated. Mo and Pb show significant anthropogenic enrichment in the inner gulf. These are followed by Cu, Cd, and Zn with moderate accumulation. Risk assessment indices point out that Ni, Cr, and Cd have a serious potential to create risk for ecosystem, and these are followed by As, Hg, Pb, Zn, and Cu. According to the spatial distribution, land use maps, and factor analysis, the Cd, Zn, and Cr increases are localized at the mouth of the Poligon Stream. Pb and Cu accumulate at the mouth of four large streams feeding the eastern part of the gulf. Pb and Cu enrichment is associated with traffic and industrial discharges. While one of the sources of Hg is anthropogenic, another source is eutrophication resulting from benthic and planktonic diatom blooms. While Fe and Mn are added to the gulf via rivers as a result of rock and soil erosion, another source is sediment. Cr, As, and Ni come from anthropogenic and lithogenic sources and immobilized in sediment. CO3-2 source is marine (biogenic) and dilutes other immobilized PTEs. It is understood that the peripheral stations rich in allochthonous organic carbon and the stations close to the central area rich in autochthonous organic carbon contribute to the carbon source in question.
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Affiliation(s)
- Ebru Yesim Özkan
- Department of Marine Biology, Faculty of Fisheries, İzmir Katip Çelebi University, İzmir, Turkey.
| | - Şakir Fural
- Department of Geography, Faculty of Arts and Sciences, Kırşehir Ahi Evran University, Kırşehir, Turkey
| | - Serkan Kükrer
- Department of Geography, Faculty of Humanities and Literature, Ardahan University, Ardahan, Turkey
| | - Hasan Baha Büyükışık
- Department of Marine Biology, Faculty of Fisheries, Ege University, İzmir, Turkey
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Assessment of traces metals in sediment from Ebolowa Municipal Lake basin (central-africa): potential risk and provenance. Heliyon 2022; 8:e10186. [PMID: 36042742 PMCID: PMC9420374 DOI: 10.1016/j.heliyon.2022.e10186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/15/2022] [Accepted: 08/01/2022] [Indexed: 11/11/2022] Open
Abstract
This study focused on assessing contamination levels of heavy metal elements (Cr, Co, Ni, Zn, Cu, Mo, Cd, and Pb) in surface sediments for the Ebolowa Municipal Lake (EML) basin in Southern Cameroon and identifying possible pollution sources. Twenty-one samples from the EML and its tributaries (Mfoumou and Bengo'o) were subjected to geochemical analysis by inductively coupled plasma-mass spectrometry (ICP-MS). The results obtained from these analyses allowed us to calculate the Contamination factor (CF), enrichment factor (EF), geo-accumulation index (Igeo), Potential Ecological Risk Factor (Er), Pollution Load Index (PLI), and Potentiel Ecological Risk Index (RI). Multivariate statistics completed these analyses. The concentrations in mg/kg are as follows: Cr (96.46) > Zn (55.94) > Cu(34.01) > Ni(30.77) > Co(16.14) > Pb(10.58) > Mo (0.61) > Cd (0.14). However, these concentrations are higher in the sites subjected to the most anthropogenic pressure (EML and Mfoumou). The pollution indexes are between: 0.29 ≤ CF ≤ 2.76, -28.10 ≤ Igeo≤0.13, 0.14 ≤ EF ≤ 2.19. PLI values ˂ 1 in all sites. Er has high values for Cd (21.43–42.85) and low values for the other elements. RI ˂ 100 values for all elements and on all sites. Pearson's correlation matrix and the Hierarchical Classification Ascending (HCA) illustrate two sources of inputs. The spatial distribution of TME seems to be impacted by autochthonous inputs of domestic effluents and parameters such as particle size and organic matter content. The pollution index values illustrate low to moderate contamination and pollution in Cr, Ni, Co, Cd, and Cu. The Er values illustrate a moderate ecological risk for Cd. The RI values indicate a low ecological risk for all sites. High values are mainly associated with poor domestic waste management, non-compliant automotive buildings and agricultural activities.
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Kumar MR, Krishnan KA, Vimexen V, Faisal AK, Mohind M, Arun V. Heavy metal impression in surface sediments and factors governing the fate of macrobenthic communties in tropical estuarine ecosystem, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:38567-38590. [PMID: 35080727 DOI: 10.1007/s11356-021-18394-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 12/25/2021] [Indexed: 06/14/2023]
Abstract
The present study aims to investigate the contamination of heavy metals in the sediments of a tropical ecosystem, India, and to evaluate the factors responsible for the dominance of specific macrobenthic communities, particularly in estuarine sediments. For the analysis of Cu, Cr, Ni, Zn, Pb and Cd in sediments, acid digestion and subsequent quantification by microwave plasma atomic emission spectroscopy was performed, whereas for Hg determination, cold vapour atomic absorption spectrophotometry was used. The general trend of the heavy metal concentration was observed as Cr > Cu > Zn > Ni > Pb > Cd > Hg, regardless of any seasonal alteration. The estuarine region was considerably contaminated by Cu and Cr (C.F. > 2) irrespective of any seasonal difference, and by Cd in 2017 non-monsoon (CF > 3). Heavy metal contamination was most pronounced during the monsoon (2018). Estuarine and marine zone together considered as deteriorated zone especially during monsoon seasons (PLI > 1, 2018 monsoon) while riverine zone remained poorly contaminated (PLI < 1). Clay Loam/Clay/Heavy Clay textures preferred polychaetes and bivalves in the estuarine and marine zone as compared to other macrobenthic communities (OMC). Among the hydrochemical parameters, total dissolved solids in general and euryhaline and slightly alkaline pH preferred domination of bivalves followed by polychaetes in non-monsoon seasons. The trace metal contamination in estuarine sediments increases the concern of bioaccumulation tendency of dominant bivalves of the estuarine and coastal sediments.
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Affiliation(s)
| | - Krishnan Anoop Krishnan
- Biogeochemistry Group, National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram, India
| | - Varghese Vimexen
- Biogeochemistry Group, National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram, India
| | - Abdul Kareem Faisal
- Biogeochemistry Group, National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram, India
| | - Mohan Mohind
- Biogeochemistry Group, National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram, India
| | - Vijayan Arun
- Biogeochemistry Group, National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram, India
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Preliminary Assessment of Trace Metal Pollution and Their Bioaccumulation in Mollusks Inhabiting the Intertidal Sediments of the Atlantic Coast of Accra, Ghana. J Toxicol 2022; 2022:9723272. [PMID: 35154315 PMCID: PMC8824742 DOI: 10.1155/2022/9723272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/10/2022] [Indexed: 12/04/2022] Open
Abstract
The present study investigated the trace metal levels in sediments, enrichment in sediments, and its bioaccumulation in mollusks collected from the intertidal sediments of the coast of Accra, Ghana, which is influenced by anthropogenic activities. The metals (Fe, Mn, Cu, Cr, and Zn) were analyzed in sediments. The metals (Mn, Cu, Cr, and Zn) were analyzed in the soft tissue of the mollusks collected from the different coastal areas. The results indicate that although Accra is the capital city and the coast receives tons of anthropogenic wastes, trace metal levels were low and there was no enrichment for the metals analyzed except Cu which showed minor to moderate enrichment in the coastal sediments. There was bioaccumulation of the trace metals in the soft tissue of the mollusks, and the results suggest that the mollusks studied, the gastropods (Agaronia razetoi) and the bivalves (Tivela tripla), can be used for biomonitoring.
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Buzzi NS, Menéndez MC, Truchet DM, Delgado AL, Severini MDF. An overview on metal pollution on touristic sandy beaches: Is the COVID-19 pandemic an opportunity to improve coastal management? MARINE POLLUTION BULLETIN 2022; 174:113275. [PMID: 35090269 PMCID: PMC8759033 DOI: 10.1016/j.marpolbul.2021.113275] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 09/22/2021] [Accepted: 12/16/2021] [Indexed: 05/20/2023]
Abstract
The worldwide spread of the SARS-CoV-2 caused an unprecedented lockdown measures in most countries with consequences on the world society, economy, and sanitary systems. This situation provided an opportunity to identify the effects of human confinement on natural environments, like touristic sandy beaches, which are stressed due to anthropogenic pressures. Based on previous articles about heavy metals sources and levels in these ecosystems, this paper discusses the dynamic of these pollutants and a regulatory scenario associated with COVID-19 sanitation policies. The main findings suggest that 39% of the studies were on Asian sandy beaches, 16% from Europe, while America and Africa with 23% each. Also Co, Cd, Cu, Cr, Zn, Pb, Ni, Fe and Mn were the most frequently analyzed metals in sediments and in several cases their concentrations exceed international guidelines assessment. Finally, even though beaches are under several metals inputs, tourism plays a key role in these ecosystems quality. After analyzing the potential indirect effect of COVID-19 measures on metals dynamics, we propose some key recommendations and management strategies to mitigate heavy metal pollution on sandy tourist beaches. These proposals are useful for decision-makers and stakeholders to improve sandy beach management, mainly those beaches not addressed from a management perspective; and their implementation should be adapted according to the regulations and legislation of each country.
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Affiliation(s)
- N S Buzzi
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Camino La Carrindanga km 7.5, Edificio E1, B8000FWB Bahía Blanca, Buenos Aires, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), San Juan 670, B8000ICN Bahía Blanca, Buenos Aires, Argentina.
| | - M C Menéndez
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Camino La Carrindanga km 7.5, Edificio E1, B8000FWB Bahía Blanca, Buenos Aires, Argentina
| | - D M Truchet
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Camino La Carrindanga km 7.5, Edificio E1, B8000FWB Bahía Blanca, Buenos Aires, Argentina
| | - A L Delgado
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Camino La Carrindanga km 7.5, Edificio E1, B8000FWB Bahía Blanca, Buenos Aires, Argentina; Departamento de Geografía y Turismo, Universidad Nacional del Sur (UNS), 12 de Octubre 1098, B8000CTX Bahía Blanca, Argentina
| | - M D Fernández Severini
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Camino La Carrindanga km 7.5, Edificio E1, B8000FWB Bahía Blanca, Buenos Aires, Argentina
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Ma XX, Jiang ZY, Wu P, Wang YF, Cheng H, Wang YS, Gu JD. Effect of mangrove restoration on sediment properties and bacterial community. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1672-1679. [PMID: 33864552 DOI: 10.1007/s10646-021-02370-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Mangrove reconstruction is an efficient approach for mangrove conservation and restoration. The present study aimed to explore the effects of mangrove reconstruction on sediment properties and bacterial community. The results showed that mangrove restoration greatly promoted sediment fertility, whereas the improvements were more obvious induced by Kandelia obovata when compared to Avicennia marina. In all the samples, the dominant top5 bacterial group were Proteobacteria (48.31-54.52%), Planctomycetes (5.98-8.48%), Bacteroidetes (4.49-11.14%) and Acidobacteria (5.69-8.16%). As for the differences among the groups, the relative abundance of Chloroflexi was higher in the sediments of K. obovata, while Bacteroidetes was more abundant in A. marina group. Furthermore, the two bacterial genera (Rhodoplanes and Novosphingobium) were more dominant in the sediments of K. obovata, while the sediments of A. marina contained higher abundance of Vibrio and Marinobacterium. Besides, bacterial community was highly correlated with mangrove species and sediment property and nutrient status. The results of this study would provide a better understanding of the ecological benefits of mangroves and highlighted the information on biogeochemical processes driven by mangrove restoration and microorganisms.
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Affiliation(s)
- Xiao-Xia Ma
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
- Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China
- Department of Bioengineering, Jinan University, Guangzhou, 510632, China
| | - Zhao-Yu Jiang
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Peng Wu
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Yong-Fei Wang
- Department of Bioengineering, Jinan University, Guangzhou, 510632, China
| | - Hao Cheng
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
- Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China.
| | - You-Shao Wang
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
- Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China.
| | - Ji-Dong Gu
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, SAR, China
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Mandour A, El-Sayed MK, El-Gamal AA, Khadr AM, Elshazly A. Temporal distribution of trace metals pollution load index in the Nile Delta coastal surface sediments. MARINE POLLUTION BULLETIN 2021; 167:112290. [PMID: 33799151 DOI: 10.1016/j.marpolbul.2021.112290] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 02/16/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
The Mediterranean coastal area of the Nile Delta is socio-economically vital, however, it is under significant environmental stress due to pollution from land-based activities. The study investigates the temporal variations of trace metals to assess the development of the anthropogenic pollution status in the coastal sediments. The average concentrations, the enrichment factor, and the geoaccumulation index revealed that Cr, V, Ni, and Co are pollutants of concern. Trace metals are particularly accumulating in the sediments further offshore and in the middle and eastern sectors of the Nile Delta coast. The temporal patterns of the pollution load index (PLI) along the Nile Delta coastal indicate that pollution hotspots are increasingly exposed to trace metals pollution over time. This is linked to discharges from anthropogenic land-based activities and controlled by sedimentological factors. A conceptual model for the accumulation of trace metals in sediments is proposed based on this study.
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Affiliation(s)
- Ahmed Mandour
- Department of Oceanography, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt.
| | - Mahmoud Kh El-Sayed
- Department of Oceanography, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt
| | - Ayman A El-Gamal
- Department of Marine Geology, Coastal Research Institute, National Water Research Center, 15, St. Elpharanaa, Elshalalat, 21514, Alexandria, Egypt
| | - Ahmed M Khadr
- Department of Oceanography, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt
| | - Ahmed Elshazly
- Department of Oceanography, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt
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14
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Fuentes-Gandara F, Pinedo-Hernández J, Gutiérrez E, Marrugo-Negrete J, Díez S. Heavy metal pollution and toxicity assessment in Mallorquin swamp: A natural protected heritage in the Caribbean Sea, Colombia. MARINE POLLUTION BULLETIN 2021; 167:112271. [PMID: 33780754 DOI: 10.1016/j.marpolbul.2021.112271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/01/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
This work reports the level and ecotoxicity impact of metals in the sediments of the Mallorquín swamp, a protected coastal lagoon in the Caribbean coast of Colombia. The distribution of metals was in the following decreasing order: Zn > Cu > Pb > Cd > Hg, showing statistically significant differences among sites. The average Pb and Cd concentrations in sediments were about 17 and 5 times higher, respectively, compared to those in background values. Several contamination indices suggested moderate contamination of Hg, Cu, and Zn, and strong pollution due to Cd and Pb. Multivariate analysis revealed spatial variations for metals and its anthropogenic origin, such as municipal and industrial wastewater discharges (Pb, Zn, and Hg) and agricultural activities (Cd and Cu). These findings showed the negative impact of human activities and the need to apply protective management strategies.
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Affiliation(s)
- Fabio Fuentes-Gandara
- Department of Natural and Exact Sciences, Universidad de la Costa, Calle 58 N° 55-66, 080002 Barranquilla, Colombia
| | - José Pinedo-Hernández
- University of Córdoba, Faculty of Basic Sciences, Department of Chemistry, Water, Applied and Environmental Chemistry Group, Monteria, Colombia
| | - Edwin Gutiérrez
- University of Córdoba, Faculty of Basic Sciences, Department of Chemistry, Water, Applied and Environmental Chemistry Group, Monteria, Colombia
| | - José Marrugo-Negrete
- University of Córdoba, Faculty of Basic Sciences, Department of Chemistry, Water, Applied and Environmental Chemistry Group, Monteria, Colombia.
| | - Sergi Díez
- Environmental Chemistry Department, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, E-08034 Barcelona, Spain.
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15
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The effect of heavy metals and physicochemical variables on benthic macroinvertebrate community structure in a tropical urban coastal lagoon. COMMUNITY ECOL 2021. [DOI: 10.1007/s42974-021-00044-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Yoon SJ, Hong S, Kim HG, Lee J, Kim T, Kwon BO, Kim J, Ryu J, Khim JS. Macrozoobenthic community responses to sedimentary contaminations by anthropogenic toxic substances in the Geum River Estuary, South Korea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 763:142938. [PMID: 33138998 DOI: 10.1016/j.scitotenv.2020.142938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/22/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
We investigated the sedimentary pollution by persistent toxic substances (PTSs) and their potential impacts on the macrobenthic faunal community in the Geum River Estuary, South Korea. Sediment and benthic macrofauna samples were collected from eight sites every two months during the period of February to December in 2015. Target PTSs encompassed metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn), one metalloid (As), polycyclic aromatic hydrocarbons (PAHs), and alkylphenols (APs). The significant difference to the environment of the inner and outer parts of the estuary (p < 0.05) was found with relatively high concentrations of PTSs in sediment from the inner estuary. The concentrations of Cu and Zn exceeded the sediment quality guidelines of Korea representing a potential risk to aquatic organisms. The primary source of PAHs was by-products of diesel and gasoline combustion (37%), followed by a coke oven (32%) and oil-burning (31%). The macrofaunal community was spatially distinguished between the inner and outer parts of the estuary (p < 0.05), regardless of the season. In the inner part of the estuary, the density of the macrofaunal community was high, due to the increased opportunistic species and/or some indicator species (organic polluted or enrichment), implying that the given environment was disturbed. Among the environmental parameters analyzed by the distance-based linear model (DistLM), salinity, chlorophyll-a, and nutrient concentrations were found to be key factors controlling the changes in macrofaunal community structure. Such changes in the closed estuary system would indicate that each taxonomic group had to adjust to lower salinities and alternative food sources. Overall, the distribution of PTSs and macrozoobenthic communities in the Geum River Estuary collectively reflected the environmental gradients caused by surrounding activities in the inner part of the estuary together with direct effects by the irregular inflow of freshwater.
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Affiliation(s)
- Seo Joon Yoon
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Seongjin Hong
- Department of Ocean Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyeong-Gi Kim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Junghyun Lee
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Taewoo Kim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Bong-Oh Kwon
- Department of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea
| | - Jaeseong Kim
- Water & Eco-Bio Co., Ltd., Jungboo Building, Miryong-dong, Kunsan 54156, Republic of Korea
| | - Jongseong Ryu
- Department of Marine Biotechnology, Anyang University, Ganghwagun, Incheon 23038, Republic of Korea
| | - Jong Seong Khim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea.
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Baines C, Lerebours A, Thomas F, Fort J, Kreitsberg R, Gentes S, Meitern R, Saks L, Ujvari B, Giraudeau M, Sepp T. Linking pollution and cancer in aquatic environments: A review. ENVIRONMENT INTERNATIONAL 2021; 149:106391. [PMID: 33515955 DOI: 10.1016/j.envint.2021.106391] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/23/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
Due to the interconnectedness of aquatic ecosystems through the highly effective marine and atmospheric transport routes, all aquatic ecosystems are potentially vulnerable to pollution. Whilst links between pollution and increased mortality of wild animals have now been firmly established, the next steps should be to focus on specific physiological pathways and pathologies that link pollution to wildlife health deterioration. One of the pollution-induced pathologies that should be at the centre of attention in ecological and evolutionary research is cancer, as anthropogenic contamination has resulted in a rapid increase of oncogenic substances in natural habitats. Whilst wildlife cancer research is an emerging research topic, systematic reviews of the many case studies published over the recent decades are scarce. This research direction would (1) provide a better understanding of the physiological mechanisms connecting anthropogenic pollution to oncogenic processes in non-model organisms (reducing the current bias towards human and lab-animal studies in cancer research), and (2) allow us to better predict the vulnerability of different wild populations to oncogenic contamination. This article combines the information available within the scientific literature about cancer occurrences in aquatic and semi-aquatic species. For the first aim, we use available knowledge from aquatic species to suggest physiological mechanisms that link pollution and cancer, including main metabolic detoxification pathways, oxidative damage effects, infections, and changes to the microbiome. For the second aim, we determine which types of aquatic animals are more vulnerable to pollution-induced cancer, which types of pollution are mainly associated with cancer in aquatic ecosystems, and which types of cancer pollution causes. We also discuss the role of migration in exposing aquatic and semi-aquatic animals to different oncogenic pollutants. Finally, we suggest novel research avenues, including experimental approaches, analysis of the effects of pollutant cocktails and long-term chronic exposure to lower levels of pollutants, and the use of already published databases of gene expression levels in animals from differently polluted habitats.
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Affiliation(s)
- Ciara Baines
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia.
| | - Adelaide Lerebours
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Frederic Thomas
- CREEC/CREES, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France; MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
| | - Jerome Fort
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Randel Kreitsberg
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
| | - Sophie Gentes
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Richard Meitern
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
| | - Lauri Saks
- Estonian Marine Institute, Universty of Tartu, Mäealuse 14, 12618 Tallinn, Harju County, Estonia
| | - Beata Ujvari
- School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, VIC, Australia
| | - Mathieu Giraudeau
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France; CREEC/CREES, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France; MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
| | - Tuul Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
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18
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Izegaegbe JI, Vivier L, Mzimela HM. Trace metal contamination in sediment in the Mhlathuze Estuary, northern KwaZulu-Natal, South Africa: effects on the macrobenthic community. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:401. [PMID: 32468333 PMCID: PMC7256079 DOI: 10.1007/s10661-020-08352-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
Mhlathuze Estuary constitutes one of the ecological most important estuaries in southern Africa and is regarded as an estuary of high conservation importance. The ongoing expansion of the adjacent industrialized Richards Bay Harbour increases the risk of metal pollution to the estuary. This study provides insight into the extent and sources of trace metal contamination using pollution indices and sediment quality guidelines and the effect on macrobenthic habitat quality. Sediment samples for sediment metal and macrobenthic analysis were collected quarterly during 2016-2017 at five sites in the estuary using a marine-grade Zabalocki grab. Metal concentrations were determined using an ICP-OES. Sediment metal concentrations were consistently highest in the subtidal mudflats and lowest in marine sand at the mouth of the estuary. Concentrations of all metals displayed significant differences between sites (P < 0.05). Pollution indices indicated moderate enrichment of Cr at all sites, although the mean pollution load index showed the estuary to be unpolluted. Comparison with sediment quality guidelines revealed that concentrations of Ni and Cr were potentially toxic to biota. Using multivariate analysis, metal concentrations appeared not to significantly affect the macrobenthic community. The multi-metric biotic index M-AMBI proved to be a robust tool in the habitat quality assessment of the estuary. The continuing use of M-AMBI as a biomonitoring tool for ecological management of the estuary is advocated.
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Affiliation(s)
- Joshua Idowu Izegaegbe
- Department of Zoology, University of Zululand, KwaDlangezwa, South Africa.
- Department of Zoology, Ambrose Alli University, Ekpoma, Nigeria.
| | - Leon Vivier
- Department of Zoology, University of Zululand, KwaDlangezwa, South Africa
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19
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Assessing Impacts of Metallic Contamination along the Tidal Gradient of a Riverine Mangrove: Multi-metal Bioaccumulation and Biomagnification of Filter-Feeding Bivalves. FORESTS 2020. [DOI: 10.3390/f11050504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Most riverine mangroves (characterized by salinity fluctuations and tidal inundations), are seriously threatened by metallic pollution. Whether differences in salinity and tidal effects along the river continuum can affect metallic bioaccumulation and the biomagnification of species is still unknown. Bivalves are representative sessile inhabitants in mangrove ecosystems, with a high capacity to bioaccumulate metallic contaminants. The present study used two bivalves, Meretrix lusoria and Mytilopsis sallei, to monitor inter-site changes in metallic contamination and assess the associated ecological impacts along the tidal gradients of riverine mangroves. The concentrations of a total of six metals (Cr, Ni, Cu, Zn, Cd and Pb) in M. lusoria and M. sallei, collected at three different sites along Danshuei Riverine Mangrove, were investigated. The metallic concentrations of the whole soft body of the studied bivalves, and the associated surface sediment from each site, were analyzed using inductively coupled plasma mass spectrometry (ICP-MS) to determine the inter-site effects on the bioaccumulation and biomagnification of metallic contaminants in bivalves. There are increasing concentrations of four metallic contaminants, Zn, Cr, Cd and Cu, in the seaward direction of the bivalves. The increasing mean metallic concentrations along the seaward direction may be the effect of salinity, further decreasing the rate of the elimination of these metals, thus resulting in a net increase in metallic contaminants. Our results clearly show prominent inter-site changes in the metallic burdens of bivalves in our study on riverine mangrove ecosystems associated with different levels of bioaccumulation and biomagnification of metallic contaminants. Thus, it is important to monitor multiple sites along the dynamic environment of riverine mangroves in order to gain a good understanding of the ecological impact of metallic pollution risks. The present findings provide important evidence of the use of simple indices to assess the ecological impacts of metallic pollution in riverine mangroves.
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20
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Torres P, Rodrigues A, Prestes ACL, Neto AI, Álvaro N, Martins GM. The Azorean edible abalone Haliotis tuberculata, an alternative heavy metal-free marine resource? CHEMOSPHERE 2020; 242:125177. [PMID: 31677516 DOI: 10.1016/j.chemosphere.2019.125177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/04/2019] [Accepted: 10/20/2019] [Indexed: 06/10/2023]
Abstract
Abalones are considered a delicacy and exploited for food worldwide. In many places, overfishing has led to the decimation of wild stocks and many are now reared in aquaculture systems. In the Azores, there is no tradition of eating abalones and Haliotis tuberculata stocks are still virtually untouched. However, as tourism in the islands grows and the stocks of other shellfish diminish, there is an increasing pressure to find alternative edible resources, leading to a rising interest in abalones. According to previous studies performed in the region, other edible species, including the local highly appreciated limpets and the giant barnacle, present high concentration levels of some heavy metals, which has been attributed to the volcanic origin of the islands. Here we analysed the metal content in the edible tissue of Haliotis tuberculata from São Miguel Island, Azores. The potential human health risks due to its consumption was assessed by estimating the average daily intake (EDI) and target hazard quotient (THQ) of metals. Similarly to other organisms in the Azores, abalones have higher than normal levels of some heavy metals, particularly cadmium, reflecting a local natural source that should be closely monitored from a public health point of view.
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Affiliation(s)
- Paulo Torres
- CIBIO, Research Centre in Biodiversity and Genetic Resources - InBIO Associate Laboratory, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal.
| | - Armindo Rodrigues
- IVAR - Instituto de Investigação em Vulcanologia e Avaliação de Riscos, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Afonso C L Prestes
- Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Ana I Neto
- Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Nuno Álvaro
- IITAA, Institute for Investigation and Technology of Agronomy and Environment, University of the Azores, Campus de Angra do Heroísmo Rua Capitão João d'Ávlia, Pico da Urze PT, 9700-042, Angra do Heroísmo, Azores, Portugal
| | - Gustavo M Martins
- CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; AQUAZOR, Marine Aquaculture and Biotechnology of the Azores, 9500-331, Ponta Delgada, Azores, Portugal
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21
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Jonathan MP, Rodriguez-Espinosa PF, Sujitha SB, Shruti VC, Martinez-Tavera E. A multi-elemental approach to assess potential contamination in tourist beaches: The case of Loreto Bay (Marine Protected Area), NW Mexico. MARINE POLLUTION BULLETIN 2019; 146:729-740. [PMID: 31426215 DOI: 10.1016/j.marpolbul.2019.06.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/22/2019] [Accepted: 06/30/2019] [Indexed: 05/12/2023]
Abstract
Metal/metalloid concentrations in water sediment and commercial fishes of Loreto Maritime National Park (MNP), Baja California Sur, Mexico were determined for a comprehensive geochemical study. In-situ physical characteristics (pH, conductivity, redox potential, dissolved oxygen, turbidity) of water clearly indicated the unique oceanographic properties of the Gulf of California. Likewise, the distribution pattern of metals/metalloid in water, sediments and fishes denoted the influences of local geology, longshore currents, upwelling process, natural hydrothermal vents and the 100-year old mining activities of Santa Rosalia region, situated to the north of Loreto. Calculated carcinogenic indices in commercial fish species showed safe human consumption. Thus, the present research validates a comprehensive geochemical study of protected areas upholding the need for continuous monitoring for a better conservation of coastal ecosystems.
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Affiliation(s)
- M P Jonathan
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de Mexico, Mexico.
| | - P F Rodriguez-Espinosa
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de Mexico, Mexico
| | - S B Sujitha
- Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional (IPN), Av. Acueducto s/n, Col. Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de Mexico, Mexico
| | - V C Shruti
- Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional (IPN), Av. Acueducto s/n, Col. Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de Mexico, Mexico
| | - E Martinez-Tavera
- Universidad Popular Autónoma del Estado de Puebla (UPAEP), 17 sur no. 901, Barrio de Santiago, Puebla C.P. 72410, Puebla Mexico
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22
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Nour HE, El-Sorogy AS, Abd El-Wahab M, Nouh ES, Mohamaden M, Al-Kahtany K. Contamination and ecological risk assessment of heavy metals pollution from the Shalateen coastal sediments, Red Sea, Egypt. MARINE POLLUTION BULLETIN 2019; 144:167-172. [PMID: 31179984 DOI: 10.1016/j.marpolbul.2019.04.056] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/19/2019] [Accepted: 04/23/2019] [Indexed: 06/09/2023]
Abstract
To assess the contamination and ecological risk assessment of the Shalateen coastal sediments, Red Sea, Egypt, 35 samples were collected to analyze Cu, Sr, Zn, Cd, Pb, Fe, Co, Ni, Mn, and total organic matter with an atomic absorption spectrophotometer. Several indices were calculated to estimate the contamination levels. The results indicated the following order of metal concentrations: Fe > Sr > Mn > Zn > Ni > Pb > Cu > Co > Cd, and revealed that the investigated sediments are highly enriched and contaminated with Sr, Cd, Pb and Zn. Statistical analyses subdivided the elements into Fe and Mn from natural sources, Sr, Cd, Pb and Zn from anthropogenic sources, and Ni, Cu and Co from combined natural and anthropogenic sources. The average Pb and Cd concentrations are considerably higher compared to the Caspian Sea, Indian Ocean, northern Red Sea, background shale, and continental crust. Possible sources of pollutants are fishing operations, antifouling paints, runoff, desalination plants, industries and dissolution of carbonate sediments.
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Affiliation(s)
- Hamdy E Nour
- Geology Department, Faculty of Science, Zagazig University, Egypt
| | - Abdelbaset S El-Sorogy
- Geology Department, Faculty of Science, Zagazig University, Egypt; Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia.
| | | | | | - Mahmoud Mohamaden
- National Institute of Oceanography and Fisheries, Red Sea Branch, Egypt
| | - Khaled Al-Kahtany
- Seismic Studies Center, College of Science, King Saud University, Riyadh, Saudi Arabia
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Hao Z, Chen L, Wang C, Zou X, Zheng F, Feng W, Zhang D, Peng L. Heavy metal distribution and bioaccumulation ability in marine organisms from coastal regions of Hainan and Zhoushan, China. CHEMOSPHERE 2019; 226:340-350. [PMID: 30939373 DOI: 10.1016/j.chemosphere.2019.03.132] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/09/2019] [Accepted: 03/19/2019] [Indexed: 05/27/2023]
Abstract
We analyzed the distribution and bioaccumulation of six heavy metals (Cu, Pb, Zn, Cr, Cd and Hg) in marine organisms, water, and sediments from China's Hainan and Zhoushan coastal regions. In all marine organism, seawater, and sediment samples, Zn and Hg had the highest and lowest concentrations, respectively. Heavy metals in marine organisms varied by region and species, with concentrations being higher in Zhoushan than in Hainan (except for Zn) and in crab than in fish. Marine organisms' ability to digest and eliminate heavy metals (bioaccumulation ability), based on bioaccumulation factors, was significantly higher for heavy metals in seawater than in sediment. Higher sediment background values may explain the higher heavy metal concentrations in crab. Generally, marine organisms' bioaccumulation ability was higher for Cu and Zn and lower for Pb. Findings specific to the coastal environments may be generalizable to other coastal areas in China or worldwide.
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Affiliation(s)
- Zhe Hao
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China; Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing, 210093, China
| | - Lihong Chen
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Chenglong Wang
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing, 210093, China.
| | - Xinqing Zou
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing, 210093, China; Key Laboratory of Coast and Island Development (Nanjing University), Ministry of Education, Nanjing, 210093, China.
| | - Fangqin Zheng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Weihua Feng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Dongrong Zhang
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Ling Peng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
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Mwakalapa EB, Simukoko CK, Mmochi AJ, Mdegela RH, Berg V, Bjorge Müller MH, Lyche JL, Polder A. Heavy metals in farmed and wild milkfish (Chanos chanos) and wild mullet (Mugil cephalus) along the coasts of Tanzania and associated health risk for humans and fish. CHEMOSPHERE 2019; 224:176-186. [PMID: 30822724 DOI: 10.1016/j.chemosphere.2019.02.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/08/2019] [Accepted: 02/10/2019] [Indexed: 05/27/2023]
Abstract
In 2016, farmed milkfish (Chanos chanos) from Tanzania mainland (Mtwara), and Zanzibar islands (Pemba and Unguja) and wild milkfish and mullet (Mugil cephalus) from the Indian Ocean were collected for analyses of heavy metals (Pb, Cd, Hg, As, Al, Fe, Zn, Cu, Ni, Co and Cr) in muscles and livers. High concentrations of Pb were detected in muscles and livers from wild and farmed milkfish and wild mullet from all sites. The highest concentration of Pb was detected in wild milkfish liver from Mtwara (47.4 mg/kg ww). The Pb concentrations in fish muscle exceeded maximum levels (ML) set by FAO/WHO (0.3 mg/kg ww) in 100% of the analysed fish. Concentrations of Pb were higher in wild fish than in farmed fish. Cd concentrations were generally low. The comparison of the Hg concentration with EQSBiota indicated that Hg might pose potential health risk to 22% of the analysed fish. Median concentrations of Fe in livers from farmed milkfish from Jozani and Shakani, Zanzibar, were 40-80 times higher than the other sites. Assessment of human health risk and exposure to heavy metals indicated no potential risk from consuming the fish from the present study locations. However, the Pb concentrations exceeding ML in the fish suggests that Pb may affect the health of fish. Future investigations should include regular monitoring of heavy metals in farmed and wild fish in Tanzania for further development of sustainable aquaculture and the welfare of the wild fish stock in the coastal waters.
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Affiliation(s)
- Eliezer Brown Mwakalapa
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, P. O. Box 8146 Dep, N-0033, Oslo, Norway; Institute of Marine Sciences, University of Dar Es Salaam, P. O. Box 668, Mizingani Road, Zanzibar, Tanzania; Department of Natural Sciences, Mbeya University of Science and Technology, P. O. Box 131, Mbeya, Tanzania
| | | | - Aviti John Mmochi
- Institute of Marine Sciences, University of Dar Es Salaam, P. O. Box 668, Mizingani Road, Zanzibar, Tanzania
| | - Robinson Hammerthon Mdegela
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P. O. Box, 3021, Morogoro, Tanzania
| | - Vidar Berg
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, P. O. Box 8146 Dep, N-0033, Oslo, Norway
| | - Mette Helen Bjorge Müller
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, P. O. Box 8146 Dep, N-0033, Oslo, Norway
| | - Jan Ludvig Lyche
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, P. O. Box 8146 Dep, N-0033, Oslo, Norway
| | - Anuschka Polder
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, P. O. Box 8146 Dep, N-0033, Oslo, Norway.
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Alharbi T, El-Sorogy A. Assessment of seawater pollution of the Al-Khafji coastal area, Arabian Gulf, Saudi Arabia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:383. [PMID: 31111273 DOI: 10.1007/s10661-019-7505-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
Twenty-seven coastal seawater samples were collected to assess seawater pollution and document the possible sources at Al-Khafji coastal area, Arabian Gulf, Saudi Arabia. Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, Cd, Hg, and Pb were analyzed using inductively coupled plasma mass spectrometer (ICP-MS). The results revealed the following order of concentration: Sr > Ni > V > Cu > As > Zn > Al > Fe > Cr > Mn > Pb > Co > Cd > Hg. Most metals exhibited a fluctuated pattern within the studied sites without obvious trend, except Sr and Ni, which showed a fluctuated pattern with increasing trend southwards. The studied sites were classified into polluted, slightly polluted, and non-polluted ones based on HCA analyses. The higher levels of metals in the seawater of the polluted sites may be attributed to atmospheric input and oil spills from underwater pipelines, off offshore oil wells, loading and handling operations, oil terminals, and oil tanker incidents in the Arabian Gulf in general and many other anthropogenic sources in Al-Khafji area in particular such as desalination plant, landfilling due to new constructions, industrial sewage, and the Khafji Joint Operations (KJO).
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Affiliation(s)
- Talal Alharbi
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box: 2455, Riyadh, 11451, Saudi Arabia
| | - Abdelbaset El-Sorogy
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box: 2455, Riyadh, 11451, Saudi Arabia.
- Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt.
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Aghadadashi V, Neyestani MR, Mehdinia A, Riyahi Bakhtiari A, Molaei S, Farhangi M, Esmaili M, Rezai Marnani H, Gerivani H. Spatial distribution and vertical profile of heavy metals in marine sediments around Iran's special economic energy zone; Arsenic as an enriched contaminant. MARINE POLLUTION BULLETIN 2019; 138:437-450. [PMID: 30660293 DOI: 10.1016/j.marpolbul.2018.11.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/05/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
Surface sediments (n = 35) and a core sample around Pars Special Economic Energy Zone were analyzed to address spatiotemporal variations of heavy metals. Enrichment factors classified the elements as: (1) poorly enriched, geogenic elements (Co, Cr, Fe, Li, Mn, Mo, Ni, Ti, and V), (2) minimal enriched elements (Zn and Mg), (3) moderately enriched elements (Ag, Cd, Pb, Se, and Sr), and (4) significantly enriched element (As and Hg). The core profile showed that As, Hg, Ag, and Cd had considerable anthropogenic inventories. Arsenic levels were continuously increasing toward the top of the core and sedimentary cycling was not an effective factor on its enrichment. Pollution load index classified the area as a severely affected region and Risk Index values suggested that 57% of the sediments had a moderate potential risks. The mapping techniques proposed a polluted and hazardous patch at the entrance and center part of the Nayband Bay.
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Affiliation(s)
- Vahid Aghadadashi
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
| | - Mahmoud Reza Neyestani
- Department of Chemistry, Faculty of Science, University of Zanjan, 45371-38791 Zanjan, Iran
| | - Ali Mehdinia
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran.
| | - Alireza Riyahi Bakhtiari
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University (TMU), Noor, Mazandaran, Iran
| | - Saeideh Molaei
- Department of Chemistry, Kharazmi University, 43Mofateh Ave., Tehran 1571914911, Iran
| | - Mehrdad Farhangi
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, P.O. Box: 4111, Iran
| | - Majied Esmaili
- Department of Environment, Islamic Azad University, Tonekabon Branch, Iran
| | - Hamid Rezai Marnani
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
| | - Hadi Gerivani
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
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Kahal AY, El-Sorogy AS, Alfaifi HJ, Almadani S, Ghrefat HA. Spatial distribution and ecological risk assessment of the coastal surface sediments from the Red Sea, northwest Saudi Arabia. MARINE POLLUTION BULLETIN 2018; 137:198-208. [PMID: 30503426 DOI: 10.1016/j.marpolbul.2018.09.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/12/2018] [Accepted: 09/29/2018] [Indexed: 06/09/2023]
Abstract
To assess the spatial distribution and ecological risk assessment along the Red Sea coast, Saudi Arabia, 30 samples were collected for aluminum, chromium, copper, zinc, cadmium, lead, mercury, iron, cobalt, nickel and organic matter analysis. The descending order of metal concentrations was Al > Fe > Cr > Cu > Zn > Ni > Co > Pb > Hg > Cd. Average values of enrichment factor of Hg, Cd, Cu, Co, Cr, Ni, Pb and Zn were higher than 2 (209.50, 25.52, 20.36, 9.62, 7.28, 6.52, 6.21 and 6.07 respectively), which means anthropogenic sources of these metals. The average levels most of the studied metals were lower than those of the background shale and the earth crust and those recorded along most worldwide coasts, while the average values of zinc, copper, cobalt and nickel were higher than the values recorded from the Red Sea coast, the Gulf of Aqaba and some Caspian Sea coasts. The Duba bulk plant-Saudi Aramco, Duba refinery station and the tourist resort were the possible anthropogenic sources of pollutants in the southern part of the study area; and the landfilling, cement factory and Duba port and shipment operations in the central part, while the landfilling resulting from construction of the green Duba power plant and crowded fish boats were the possible sources in the northern part.
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Affiliation(s)
- Ali Y Kahal
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
| | - Abdelbaset S El-Sorogy
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia; Geology Department, Faculty of Science, Zagazig University, Egypt.
| | - Hussain J Alfaifi
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
| | - Sattam Almadani
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
| | - Habes A Ghrefat
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
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28
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Gutiérrez-Mosquera H, Shruti VC, Jonathan MP, Roy PD, Rivera-Rivera DM. Metal concentrations in the beach sediments of Bahia Solano and Nuquí along the Pacific coast of Chocó, Colombia: A baseline study. MARINE POLLUTION BULLETIN 2018; 135:1-8. [PMID: 30300992 DOI: 10.1016/j.marpolbul.2018.06.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/14/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Thirty sediment samples from four different beaches along Bahia Solano and Nuquí (Department of Chocó) of eastern Colombia, with tourism and gold mining activities, were analysed to estimate the concentrations of fourteen different acid leachable metals. Metal distribution patterns showed elevated concentrations of Co, Cr, Cu, Pb and Zn compared with the upper continental crust values. Calculation of geochemical indices confirmed that the enrichment is due to periodic gold mining activities (severe to extremely severe enrichment of Cu, Zn, V, Co, Cr and Pb) along with natural (geological) contributions (minor and moderate enrichment of Ca, Mg, Fe, Ti, Mn and Li). Potential ecological risk index revealed that Pb posed the highest risk. Our results together with a global comparison suggest that the observed metal enrichments are mainly caused by mining and to a lesser extent by tourism in this region, thus instigating continuous monitoring of metal concentrations in this region.
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Affiliation(s)
- Harry Gutiérrez-Mosquera
- Facultad de Ingeniería, Universidad Tecnológica del Chocó, Carrera 22 No.18B-10, Quibdó, Colombia; Facultad de Ingeniería, Universidad de Medellín, Carrera 87 No. 30-65, Medellín, Colombia
| | - V C Shruti
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico
| | - M P Jonathan
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico.
| | - Priyadarsi D Roy
- Instituto de Geología, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria C.P. 04510, Del. Coyoacan, Ciudad de México, Mexico
| | - D M Rivera-Rivera
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico
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Dabney BL, Clements WH, Williamson JL, Ranville JF. Influence of Metal Contamination and Sediment Deposition on Benthic Invertebrate Colonization at the North Fork Clear Creek Superfund Site, Colorado, USA. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7072-7080. [PMID: 29812923 PMCID: PMC6008246 DOI: 10.1021/acs.est.7b06556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Assessing benthic invertebrate community responses to multiple stressors is necessary to improve the success of restoration and biomonitoring projects. Results of mesocosm and field experiments were integrated to predict how benthic macroinvertebrate communities would recover following the removal of acid mine drainage from the North Fork of Clear Creek (NFCC), a U.S. EPA Superfund site in Colorado, USA. We transferred reference and metal-contaminated sediment to an upstream reference site where colonization by benthic macroinvertebrates was measured over 30 days. Additionally, a mesocosm experiment was performed to test the hypothesis that patches of metal-contaminated substrate impede recolonization downstream. Abundance in all treatments increased over time during field experiments; however, colonization was slower in treatments with metal-contaminated fine sediment. Community assemblages in treatments with metal-contaminated fine substrate were significantly different from other treatments. Patterns in the mesocosm study were consistent with results of the field experiment and showed greater separation in community structure between streams with metal-contaminated sediments and reference-coarse habitats; however, biological traits also helped explain downstream colonization. This study suggests that after water quality improvements at NFCC, fine-sediment deposition will likely reduce recovery potential for some taxa; however highly mobile taxa that avoid patches of contaminated habitats can recover quickly.
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Affiliation(s)
- Brittanie L. Dabney
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado 80523, USA
| | - William H. Clements
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado 80523, USA
| | - Jacob L. Williamson
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado 80401, USA
| | - James F. Ranville
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado 80401, USA
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Minu A, Routh J, Dario M, Bilosnic M, Kalén R, Val Klump J, Machiwa JF. Temporal and spatial distribution of trace metals in the Rufiji delta mangrove, Tanzania. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:336. [PMID: 29744600 PMCID: PMC5943377 DOI: 10.1007/s10661-018-6707-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 04/26/2018] [Indexed: 05/09/2023]
Abstract
Spatial and temporal distribution of trace metals and their cycling is a key issue for understanding the ongoing biogeochemical processes in coastal environments. Sediment cores were collected from six different sampling locations from the Rufiji delta mangrove forests in southeastern coastal Tanzania that are perceived to be impacted by urban development and agricultural activities in the catchment, and pollution in upstream sections of the Rufiji River. The chronology and sediment accumulation rates at these sampling sites were derived based on the distribution of 210Pbexcess method. The trace metals (As, Cd, Cr, Cu, Ni, Pb, and Zn) were sequentially extracted as per the BCR method and analyzed. The results indicate that the mass accumulation rates range from 0.40 g cm-2 year-1 (cores NR3 and NR4) to 1.75 g cm-2 year-1 (core SR1). Trace metals in the cores are mainly associated with the residual phase and their abundances in sediments are ranked as Cr > Zn > Ni > Cu > Pb > Cd. The results imply that trace metals in the Rufiji delta mangroves are mainly of crustal origin, and they are less sensitive to weathering. Further, these metals are least available for uptake by plants and they pose limited threat to the biota.
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Affiliation(s)
- Andrew Minu
- Department of Aquatic Sciences and Fisheries, University of Dar es Salaam, Box 35064, Dar es Salaam, Tanzania
| | - Joyanto Routh
- Department of Thematic Studies-Environmental Change, Linköping University, SE-58183, Linköping, Sweden.
| | - Mårten Dario
- Department of Thematic Studies-Environmental Change, Linköping University, SE-58183, Linköping, Sweden
| | - Mario Bilosnic
- Department of Thematic Studies-Environmental Change, Linköping University, SE-58183, Linköping, Sweden
| | - Rikard Kalén
- Department of Thematic Studies-Environmental Change, Linköping University, SE-58183, Linköping, Sweden
| | - J Val Klump
- School of Freshwater Sciences, Great Lakes WATER Institute, 600 E. Greenfield Ave., Milwaukee, WI, 53204, USA
| | - John F Machiwa
- Department of Aquatic Sciences and Fisheries, University of Dar es Salaam, Box 35064, Dar es Salaam, Tanzania
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El-Sorogy A, Al-Kahtany K, Youssef M, Al-Kahtany F, Al-Malky M. Distribution and metal contamination in the coastal sediments of Dammam Al-Jubail area, Arabian Gulf, Saudi Arabia. MARINE POLLUTION BULLETIN 2018; 128:8-16. [PMID: 29571415 DOI: 10.1016/j.marpolbul.2017.12.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 12/22/2017] [Accepted: 12/30/2017] [Indexed: 05/11/2023]
Abstract
Present work aims to document the distribution and metal contamination in the coastal sediments of the Dammam Al-Jubail area, Saudi Arabian Gulf. Twenty-six samples were collected for Al, V, Cr, Mn, Cu, Zn, Cd, Pb, Hg, Sr, As, Fe, Co and Ni analysis. Results of enrichment factor indicated that Sr, Cd, Cu, Hg, V, As, Ni, Cr and Zn gave enrichment factors higher than 2 (98.87, 40.28, 33.20, 27.87, 26.11, 14.10, 6.15, 3.72 and 2.62 respectively) implying anthropogenic sources, while Pb, Mn and Al have very low background level (1.37, 0.71, 0.124 respectively), probably originated from natural sources. Average concentrations of Sr, V, Hg, Cd and As were mostly higher than those from the background shale and the earth crust, the Caspian Sea, the Mediterranean Sea, the sediment quality guidelines, the Red Sea, the Gulf of Aqaba and the Gulf of Oman. The higher levels of the studied metals are mostly related samples with high Al and TOM content, as well as the visible anthropogenic pollutants along the studied coastline. The most recorded anthropogenic pollutants were sewage effluent, landfilling due to coastal infrastructure development, oil spills, petrochemical industries and desalination plants in Al-Jubail industrial city.
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Affiliation(s)
- Abdelbaset El-Sorogy
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia; Geology Department, Faculty of Science, Zagazig University, Egypt.
| | - Khaled Al-Kahtany
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
| | - Mohamed Youssef
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia; Geology Department, Faculty of Science, South Valley University, Egypt
| | - Fahd Al-Kahtany
- Ministry of Energy and Industry and Mineral Resources, Riyadh, Saudi Arabia
| | - Mazen Al-Malky
- Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia
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32
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Botwe BO, Nyarko E, Lens PNL. Settling fluxes and ecotoxicological risk assessment of fine sedimentary metals in Tema Harbour (Ghana). MARINE POLLUTION BULLETIN 2018; 126:119-129. [PMID: 29421078 DOI: 10.1016/j.marpolbul.2017.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/26/2017] [Accepted: 11/01/2017] [Indexed: 06/08/2023]
Abstract
Sediment traps were deployed in the Tema Harbour to estimate the settling fluxes of silt-clay particles and associated metals (Fe, Mn, Pb, Cr, Cu, Zn, Ni, Hg, Sn and As) and characterise their potential ecotoxicological risks. The mean daily settling fluxes of the silt-clay particles and associated metals ranged from 42.7 to 85.0gm-2d-1 and 1.3×10-2 to 49.4mgm-2d-1, respectively, and were characterised by large fluctuations at each station. The silt-clay and metal fluxes strongly correlated, indicating the important role of the silt-clay particles in metal transport and distribution in the harbour. Geochemical indices indicated anthropogenic influences on the harbour as the Pb, Cr, Zn, Hg, Sn and As content in the settling silt-clay particles exceeded their average crustal concentrations. Sediment quality guidelines indicated these metals pose appreciable ecotoxicological risks, particularly As. Increasing temporal trends in As necessitates increased pollution control efforts at the harbour.
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Affiliation(s)
- Benjamin O Botwe
- UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands; University of Ghana, Department of Marine and Fisheries Sciences, PO Box LG 99, Legon, Accra, Ghana.
| | - Elvis Nyarko
- University of Ghana, Department of Marine and Fisheries Sciences, PO Box LG 99, Legon, Accra, Ghana
| | - Piet N L Lens
- UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands
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Alharbi T, Alfaifi H, Almadani SA, El-Sorogy A. Spatial distribution and metal contamination in the coastal sediments of Al-Khafji area, Arabian Gulf, Saudi Arabia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:634. [PMID: 29134383 DOI: 10.1007/s10661-017-6352-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/02/2017] [Indexed: 06/07/2023]
Abstract
To document the spatial distribution and metal contamination in the coastal sediments of the Al-Khafji area in the northern part of the Saudi Arabian Gulf, 27 samples were collected for Al, V, Cr, Mn, Cu, Zn, Cd, Pb, Hg, Sr, As, Fe, Co, and Ni analysis using inductively coupled plasma-mass spectrometer (ICP-MS). The results revealed the following descending order of the metal concentrations: Sr > Fe > Al > As > Mn > Ni > V > Zn > Cr > Cu > Pb > Co > Hg > Cd. Average levels of enrichment factor of Sr, As, Hg, Cd, Ni, V, Cu, Co, and Pb were higher than 2 (218.10, 128.50, 80.94, 41.50, 12.31, 5.66, 2.95, 2.90, and 2.85, respectively) and that means the anthropogenic sources of these metals, while Al, Zn, Cr and Mn have enrichment factor less than 2, which implies natural sources. Average values of Sr, Hg, Cd, Cr, Ni, and As in the coastal sediments of Al-Khafji area were mostly higher than the values recorded from the background shale and earth crust and from those results along coasts of the Caspian Sea and the Mediterranean Sea. The highest levels of Cu in the northern part of the studied coastline might be due to Al-Khafji desalination plant, while levels of Al, Ni, Cr, Fe, Mn, Pb, and Zn in the central part may be a result of landfilling and industrial sewage. The highest levels of As, Cd, Co, Cu, Hg, and V in the southern part seem to be due to oil pollutants from Khafji Joint Operations (KJO). The higher values of Sr in the studied sediments in general and particularly in locality 7 could relate to the hypersalinity and aragonitic composition of the scleractinian corals abundant in that area.
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Affiliation(s)
- Talal Alharbi
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hussain Alfaifi
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box 2455, Riyadh, 11451, Saudi Arabia
| | - Sattam A Almadani
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdelbaset El-Sorogy
- Geology and Geophysics Department, College of Science, King Saud University, P.O Box 2455, Riyadh, 11451, Saudi Arabia.
- Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt.
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Rumisha C, Leermakers M, Mdegela RH, Kochzius M, Elskens M. Bioaccumulation and public health implications of trace metals in edible tissues of the crustaceans Scylla serrata and Penaeus monodon from the Tanzanian coast. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:529. [PMID: 28963703 DOI: 10.1007/s10661-017-6248-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/20/2017] [Indexed: 06/07/2023]
Abstract
The coastal population in East Africa is growing rapidly but sewage treatment and recycling facilities in major cities and towns are poorly developed. Since estuarine mangroves are the main hotspots for pollutants, there is a potential for contaminants to accumulate in edible fauna and threaten public health. This study analysed trace metals in muscle tissues of the giant mud crabs (Scylla serrata) and the giant tiger prawns (Penaeus monodon) from the Tanzanian coast, in order to determine the extent of bioaccumulation and public health risks. A total of 180 samples of muscle tissues of S. serrata and 80 of P. monodon were collected from nine sites along the coast. Both species showed high levels of trace metals in the wet season and significant bioaccumulation of As, Cu and Zn. Due to their burrowing and feeding habits, mud crabs were more contaminated compared to tiger prawns sampled from the same sites. Apart from that, the measured levels of Cd, Cr and Pb did not exceed maximum limits for human consumption. Based on the current trend of fish consumption in Tanzania (7.7 kg/person/year), the measured elements (As, Cd, Co, Cu, Mn, Pb and Zn) are not likely to present health risks to shellfish consumers. Nevertheless, potential risks of As and Cu cannot be ruled out if the average per capita consumption is exceeded. This calls for strengthened waste management systems and pollution control measures.
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Affiliation(s)
- Cyrus Rumisha
- Department of Biosciences, Sokoine University of Agriculture, Solomon Mahlangu College of Science and Education, P.O Box 3038, Morogoro, Tanzania.
- Department of Biology, Vrije Universiteit Brussel, Marine Biology, Pleinlaan 2, 1050, Brussels, Belgium.
| | - Martine Leermakers
- VrijeUniversiteit Brussel, Analytical, Environmental and Geo- Chemistry, Pleinlaan 2, 1050, Brussels, Belgium
| | - Robinson H Mdegela
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, College of Veterinary Medicine and Biomedical Sciences, P.O Box 3021, Morogoro, Tanzania
| | - Marc Kochzius
- Department of Biology, Vrije Universiteit Brussel, Marine Biology, Pleinlaan 2, 1050, Brussels, Belgium
| | - Marc Elskens
- VrijeUniversiteit Brussel, Analytical, Environmental and Geo- Chemistry, Pleinlaan 2, 1050, Brussels, Belgium
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Reduced genetic diversity and alteration of gene flow in a fiddler crab due to mangrove degradation. PLoS One 2017; 12:e0182987. [PMID: 28837577 PMCID: PMC5570428 DOI: 10.1371/journal.pone.0182987] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 07/27/2017] [Indexed: 11/19/2022] Open
Abstract
The fiddler crab Austruca occidentalis is a dominant species in mangrove forests along the East African coast. It enhances soil aeration and, through its engineering activities, makes otherwise-inaccessible food available for other marine organisms. Despite its importance, the habitat of A. occidentalis is threatened by human activities. Clearing the mangroves for salt farming and selective logging of mangroves trees continue to jeopardise mangrove ecosystems in the Western Indian Ocean. This study aims to use partial mitochondrial COI gene sequences and nuclear microsatellites to determine whether salt farming activities in mangroves have a negative impact on the genetic diversity and gene flow of A. occidentalis collected along the Tanzania coast. The level of genetic diversity for both mitochondrial DNA and nuclear microsatellites are relatively lower in samples from salt ponds compared to natural mangrove sites. Analysis of molecular variance (AMOVA) among all populations showed low but significant differentiation (COI: Fst = 0.022, P < 0.05; microsatellites: Fst = 0.022, P < 0.001). A hierarchical AMOVA indicates lower but significant genetic differentiation among populations from salt ponds and natural mangroves sites (COI: Fct = 0.033, P < 0.05; microsatellites: Fct = 0.018, P = < 0.01). These results indicate that salt farming has a significant negative impact on the genetic diversity of A. occidentalis. Since higher genetic diversity contributes to a stable population, restoring the cleared habitats might be the most effective measures for the conservation of genetic diversity and hence adaptive potential to environmental change in this species.
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Ragi AS, Leena PP, Cheriyan E, Nair SM. Heavy metal concentrations in some gastropods and bivalves collected from the fishing zone of South India. MARINE POLLUTION BULLETIN 2017; 118:452-458. [PMID: 28336207 DOI: 10.1016/j.marpolbul.2017.03.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 03/09/2017] [Accepted: 03/15/2017] [Indexed: 05/27/2023]
Abstract
The present study investigates heavy metal concentrations in gastropods and bivalves collected from major fishing centers in South India. Three gastropods, Bursa spinosa, Tibia curta, and Murex trapa, and two bivalves, Perna viridis and Villoritta cyprinoids, were collected for the analysis of heavy metals. The metals in the present study followed the order Mg>Ca>Zn>Fe>Cu>Mn>Cr>Pb>Ni>Co>Cd. Trace metal concentrations in the soft tissue of the molluscs varied as follows: for Cd: 0.04-5.33, Co: 0.09-0.87, Cr: 2.18-7.59, Cu: 9.54-37.02, Mn: 1.30-8.50, Ni: 0.94-3.21, Pb: 1.16-2.64 and Zn: 68.16-113.64mgkg-1. Metal concentrations in all the species were below the limits proposed by the World Health Organization, except for Pb and Cd. This baseline study suggests that the levels of toxic metals in M. trapa, T. curta, and B. spinosa should be continuously monitored to assess the fate and effects of these metals in this fragile ecosystem.
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Affiliation(s)
- A S Ragi
- Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India.
| | - P P Leena
- Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India
| | - Eldhose Cheriyan
- Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India.
| | - S M Nair
- Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India.
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Liu J, Ma K, Qu L. Relative influence of sediment variables on mangrove community assembly in Leizhou Peninsula, China. MARINE POLLUTION BULLETIN 2017; 117:429-435. [PMID: 28209362 DOI: 10.1016/j.marpolbul.2017.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/03/2017] [Accepted: 02/04/2017] [Indexed: 06/06/2023]
Abstract
Effective conservation of mangroves requires a complete understanding of vegetation structure and identification of the variables most important to their assembly. Using canonical correspondence analysis (CCA) combined with variation partition, we determined the independent and joint effects of sediment variables, including physicochemical characteristics and heavy metals, on mangrove community assemblies in the overstory and understory in Leizhou Peninsula, China. The results indicated that the contributions of sediment physicochemical variables to community assembly were greater than were those of heavy metals, particularly in overstory vegetation. However, the independent contributions of heavy metals were higher in understory mangrove vegetation than in the overstory. The TOC, TP, and salinity of the sediment, distance from the coastline, and concentration of As were limiting factors for mangrove assembly in overstory vegetation, while understory vegetation may be affected to a greater degree by the distance from the coastline, electrical conductivity, and concentration of As and Pb in the sediment.
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Affiliation(s)
- Jing Liu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, 100091, China
| | - Keming Ma
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Laiye Qu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Cabrini TMB, Barboza CAM, Skinner VB, Hauser-Davis RA, Rocha RC, Saint'Pierre TD, Valentin JL, Cardoso RS. Heavy metal contamination in sandy beach macrofauna communities from the Rio de Janeiro coast, Southeastern Brazil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 221:116-129. [PMID: 27914858 DOI: 10.1016/j.envpol.2016.11.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 05/08/2023]
Abstract
We evaluated concentrations of eight heavy metals Cr, Zn, Pb, Ni, Cu, Cd, Co and V, in tissues of representative macrofauna species from 68 sandy beaches from the coast of Rio de Janeiro state. The links between contamination levels and community descriptors such as diversity, evenness, density and biomass, were also investigated. Metal concentrations from macrofaunal tissues were compared to maximum permissible limits for human ingestion stipulated by the Brazilian regulatory agency (ANVISA). Generalized linear models (GLM's) were used to investigate the variability in macrofauna density, richness, eveness and biomass in the seven different regions. A non-metric multidimensional scaling analysis (n-MDS) was used to investigate the spatial pattern of heavy metal concentrations along the seven regions of Rio de Janeiro coast. Variation partitioning was applied to evaluate the variance in the community assemblage explained by the environmental variables and the heavy metal concentrations. Our data suggested high spatial variation in the concentration of heavy metals in macrofauna species from the beaches of Rio de Janeiro. This result highlighted a diffuse source of contamination along the coast. Most of the metals concentrations were under the limits established by ANVISA. The variability in community descriptors was related to morphodynamic variables, but not with metal contamination values, indicating the lack of direct relationships at the community level. Concentration levels of eight heavy metals in macrofauna species from 68 sandy beaches on Rio de Janeiro coast (Brazil) were spatially correlated with anthropogenic activities such as industrialization and urbanization.
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Affiliation(s)
- Tatiana M B Cabrini
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio de Janeiro, Brazil; Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil.
| | - Carlos A M Barboza
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil; Núcleo em Ecologia e Desenvolvimento Sócio Ambiental NUPEM, Universidade Federal do Rio de Janeiro, Brazil
| | - Viviane B Skinner
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil
| | - Rachel A Hauser-Davis
- Universidade Federal do Estado do Rio de Janeiro, Centro de Ciências Biológicas e da Saúde, Instituto de Biociências, Brazil
| | - Rafael C Rocha
- Departamento de Química, PUC - Rio, Rio de Janeiro, RJ, Brazil
| | | | - Jean L Valentin
- Departamento de Biologia Marinha, Universidade Federal do Rio de Janeiro, Brazil
| | - Ricardo S Cardoso
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil
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Rumisha C, Leermakers M, Elskens M, Mdegela RH, Gwakisa P, Kochzius M. Genetic diversity of the giant tiger prawn Penaeus monodon in relation to trace metal pollution at the Tanzanian coast. MARINE POLLUTION BULLETIN 2017; 114:759-767. [PMID: 27829502 DOI: 10.1016/j.marpolbul.2016.10.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/21/2016] [Accepted: 10/22/2016] [Indexed: 06/06/2023]
Abstract
The genetic diversity of giant tiger prawns in relation to trace metals (TMs) pollution was analysed using 159 individuals from eight sites at the Tanzanian coast. The seven microsatellites analysed showed high degree of polymorphism (4-44 alleles). The measured genetic diversity (Ho=0.592±0.047) was comparable to that of populations in the Western Indian Ocean. Apart from that, correlation analysis revealed significant negative associations between genetic diversity and TMs pollution (p<0.05), supporting the genetic erosion hypothesis. Limited gene flow was indicated by a significant genetic differentiation (FST=0.059, p<0.05). The Mantel test rejected the isolation-by-distance hypothesis, but revealed that gene flow along the Tanzanian coast is limited by TMs pollution. This suggests that TMs affect larvae settlement and it may account for the measured deficiency of heterozygosity. This calls for strengthened pollution control measures in order to conserve this commercially important species.
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Affiliation(s)
- Cyrus Rumisha
- Vrije Universiteit Brussel (VUB), Ecology and Biodiversity, Marine Biology, Pleinlaan 2, 1050 Brussels, Belgium; Sokoine University of Agriculture, Department of Biological Sciences, 3038 Morogoro, Tanzania.
| | - Martine Leermakers
- Vrije Universiteit Brussel (VUB), Analytical, Environmental and Geo-Chemistry, Pleinlaan 2, 1050 Brussels, Belgium
| | - Marc Elskens
- Vrije Universiteit Brussel (VUB), Analytical, Environmental and Geo-Chemistry, Pleinlaan 2, 1050 Brussels, Belgium
| | - Robinson H Mdegela
- Sokoine University of Agriculture, Department of Medicine & Public Health, 3021 Morogoro, Tanzania
| | - Paul Gwakisa
- Sokoine University of Agriculture, Department of Microbiology, Parasitology and Immunology, Genome Science Center, 3019 Morogoro, Tanzania
| | - Marc Kochzius
- Vrije Universiteit Brussel (VUB), Ecology and Biodiversity, Marine Biology, Pleinlaan 2, 1050 Brussels, Belgium
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40
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Doe K, Mroz R, Tay KL, Burley J, Teh S, Chen S. Biological effects of gold mine tailings on the intertidal marine environment in Nova Scotia, Canada. MARINE POLLUTION BULLETIN 2017; 114:64-76. [PMID: 27697321 DOI: 10.1016/j.marpolbul.2016.08.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 07/06/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
From 1861 to the 1940s, gold was produced from 64 mining districts in Nova Scotia, where mercury amalgamation was the dominant method for the extraction of gold from ore until the 1880s. As a result, wastes (tailings) from the milling process were contaminated by mercury and were high in naturally occurring arsenic. In 2004 and 2005, sediments, water and mollusc tissues were collected from 29 sampling stations at nine former gold mining areas along the Atlantic coastline and were analysed for arsenic and mercury. The resulting data were compared with environmental quality guidelines. Samples indicated high potential risk of adverse effects in the intertidal environments of Seal Harbour, Wine Harbour and Harrigan Cove. Arsenic in Seal Harbour was bioavailable, resulting in high concentrations of arsenic in soft-shell clam tissues. Mercury concentrations in tissues were below guidelines. This paper presents results of the sampling programs and implications of these findings.
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Affiliation(s)
- K Doe
- Environment and Climate Change Canada, Mount Uniacke, Nova Scotia, Canada.
| | - R Mroz
- Environment and Climate Change Canada, 45 Alderney Drive, Dartmouth, Nova Scotia B2Y 2N6, Canada.
| | - K-L Tay
- Environment and Climate Change Canada, 45 Alderney Drive, Dartmouth, Nova Scotia B2Y 2N6, Canada.
| | - J Burley
- Environment and Climate Change Canada, 45 Alderney Drive, Dartmouth, Nova Scotia B2Y 2N6, Canada.
| | - S Teh
- University of California-Davis, Anatomy, Physiology, and Cell Biology, One Shields Avenue, 1321 Haring Hall, Davis, CA 95616-8732, USA.
| | - S Chen
- Canadian Food Inspection Agency, Dartmouth Laboratory, 1992 Agency Drive, PO Box 1060, Dartmouth, Nova Scotia B2Y 3Z7, Canada.
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Rumisha C, Mdegela RH, Kochzius M, Leermakers M, Elskens M. Trace metals in the giant tiger prawn Penaeus monodon and mangrove sediments of the Tanzania coast: Is there a risk to marine fauna and public health? ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 132:77-86. [PMID: 27281719 DOI: 10.1016/j.ecoenv.2016.05.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 05/06/2016] [Accepted: 05/27/2016] [Indexed: 06/06/2023]
Abstract
Mangroves ecosystems support livelihood and economic activities of coastal communities in the tropics and subtropics. Previous reports have documented the inefficiency of waste treatment facilities in Tanzania to contain trace metals. Therefore, the rapidly expanding coastal population and industrial sector is likely to threaten mangrove ecosystems with metal pollution. This study analysed trace metals in 60 sediment samples and 160 giant tiger prawns from the Tanzanian coast in order to document the distribution of trace metals and to establish if measured levels present a threat to mangrove fauna and are of public health importance. High levels of Cr, Co, Cu, Fe, Mn, Ni, and V was observed in mangroves of river Pangani, Wami, and Rufiji. Multivariate analysis showed that they originate mainly from weathering and erosion in the river catchments. Extreme enrichment of Cd was observed in a mangrove affected by municipal sewage. The distribution of Hg, Pb, and Zn was related with urbanisation and industrial activities along the coast. The metal pollution index was high at Pangani, Saadani, and Rufiji, suggesting that these estuarine mangroves are also affected by human activities in the catchment. Moderate to considerable ecological risks were observed in all sampled mangroves, except for Kilwa Masoko. It was revealed that As, Cd, and Hg present moderate risks to fauna. High levels of Cu, Fe and Zn were observed in prawns but the level of the non-essential Cd, Hg, and Pb did not exceed the maximum allowed levels for human consumption. However, based on the trends of fish consumption in the country, weekly intake of Hg is likely to exceed provisional tolerable weekly intake level, especially in fishing communities. This calls for measures to control Hg emissions and to strengthen sewage and waste treatment in coastal cities and urban centres in the basin of major rivers.
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Affiliation(s)
- Cyrus Rumisha
- Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium; Department of Biological Sciences, Sokoine University of Agriculture, P.O Box 3038, Morogoro, Tanzania.
| | - Robinson H Mdegela
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O Box 3021, Morogoro, Tanzania
| | - Marc Kochzius
- Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Martine Leermakers
- Analytical, Environmental and Geo- Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Marc Elskens
- Analytical, Environmental and Geo- Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
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Zhang L, Shi Z, Zhang J, Jiang Z, Wang F, Huang X. Toxic heavy metals in sediments, seawater, and molluscs in the eastern and western coastal waters of Guangdong Province, South China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:313. [PMID: 27126438 DOI: 10.1007/s10661-016-5314-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 04/21/2016] [Indexed: 06/05/2023]
Abstract
Heavy metal concentrations and distribution were studied in sediments, seawater, and molluscs, and the possible heavy metal sources in the coastal waters of Guangdong Province, South China were discussed. The results showed that the concentrations of Cu, Pb, Zn, and Cr in sediments in eastern coastal waters were generally higher than those in the western coastal waters. However, concentrations of most metals in seawater and molluscs in western waters were higher than in the eastern waters, which was tightly related to the local economics and urbanization development, especially, the different industrial structure in two regions. The main heavy metal sources were attributed to the industrial and agricultural effluent, domestic sewage, and even waste gas. Furthermore, heavy metal contamination assessment indicated that high contamination levels of Cd, Zn, and Pb occurred in sediments in local areas, especially in the bays and harbors. The metal accumulation levels by molluscs ranked following the order of Cd > Cu > As > Zn > Pb > Cr, and the ecological risks introduced by heavy metals in different areas were in the order of Zhanjiang > Yangmao > Shantou > Shanhui.
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Affiliation(s)
- Ling Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Zhen Shi
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Jingping Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Zhijian Jiang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Fei Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xiaoping Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
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Zhang L, Shi Z, Jiang Z, Zhang J, Wang F, Huang X. Distribution and bioaccumulation of heavy metals in marine organisms in east and west Guangdong coastal regions, South China. MARINE POLLUTION BULLETIN 2015; 101:930-937. [PMID: 26506025 DOI: 10.1016/j.marpolbul.2015.10.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/10/2015] [Accepted: 10/19/2015] [Indexed: 06/05/2023]
Abstract
Heavy metal (Cu, Pb, Zn, Cr, Cd, As) concentrations, distribution and bioaccumulation were studied in marine organisms in Guangdong coastal regions. Heavy metal concentrations and distribution in organisms showed characteristics according to areas and species. Heavy metal concentrations in most organisms were higher in west than in east, tightly related to the local industry structure and the disequilibrium of metal discharge. Generally, high heavy metal concentrations were detected in molluscs and low concentrations were detected in fish. Bioaccumulation factor was used to assess the accumulation level of marine organisms to heavy metals, of which Cd, Cu and As were the most accumulated elements. Accumulation abilities to heavy metals varied among organism species, such as Distorsio reticulate accumulating Cu, Zn, Cd, As, Loligo beka Sasaki accumulating Pb, Cu, Cr, and Turritella bacillum Kiener accumulating Zn, Cd, As. By comparison, Johnius belengeri, Argyrosomus argentatus, Cynoglossus sinicus Wu had relatively low accumulation abilities.
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Affiliation(s)
- Ling Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Zhen Shi
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Zhijian Jiang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Jingping Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Fei Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xiaoping Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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Ngeve MN, Leermakers M, Elskens M, Kochzius M. Assessment of trace metal pollution in sediments and intertidal fauna at the coast of Cameroon. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:337. [PMID: 25957194 DOI: 10.1007/s10661-015-4574-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/29/2015] [Indexed: 06/04/2023]
Abstract
Coastal systems act as a boundary between land and sea. Therefore, assessing pollutant concentrations at the coast will provide information on the impact that land-based anthropogenic activities have on marine ecosystems. Sediment and fauna samples from 13 stations along the whole coast of Cameroon were analyzed to assess the level of trace metal pollution in sediments and intertidal fauna. Sediments showed enrichment of As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V, and Zn. However, pollution of greater concern was observed for Cd, Cr, Cu, Ni, and Zn at the northern stations. Some sites recorded trace metal levels higher than recommended in sediment quality guidelines. Species diversity was low, and high bioaccumulation of trace metals was observed in biological samples. Some edible gastropod species accumulated trace metals above the safety limits of the World Health Organization, European Medicine Agency, and the US Environment Protection Agency. Although industrial pollution is significant along Cameroon's coast, natural pollution from the volcano Mount Cameroon is also of concern.
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Affiliation(s)
- Magdalene N Ngeve
- Marine Biology, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium,
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Daudi LN, Lugomela C, Uku JN, De Troch M. Effect of nutrient enrichment on seagrass associated meiofauna in Tanzania. MARINE ENVIRONMENTAL RESEARCH 2012; 82:49-58. [PMID: 23072915 DOI: 10.1016/j.marenvres.2012.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 09/10/2012] [Accepted: 09/19/2012] [Indexed: 06/01/2023]
Abstract
Abundance, diversity and community structure of meiofauna, with special emphasis on epiphytic harpacticoid copepods, occurring in Tanzanian seagrass beds under various nutrient inputs was determined. All measured parameters for epiphytic meiofauna and diatoms (fucoxanthin) were negatively affected by nutrient input and this was detected even at the higher taxonomic levels of meiofauna, supporting the validity of higher taxon surrogacy in environmental impact studies. However, benthic meiofauna and other biofilm characteristics (chlorophyll a) did not show any difference between sites suggesting that nutrient enrichment had less impact on these variables. This indicates a differential impact of pollution on epiphytic vs. benthic communities. Consequently, different trophic levels will be impacted in various ways and hence the effects of pollution on the overall ecosystem functioning of seagrass beds are complex and not straightforward. Although the seagrass plants themselves don't show any major changes under different nutrient input, associated organisms that guarantee energy flow at basal levels of the food web in this ecosystem can be largely impacted.
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