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Lei R, Liu W, He Y, Jia T, Li C, Su W, Xing Y. Spatial distributions, behaviors, and sources of PCDD/Fs in surface water and sediment from the Yangtze River Delta. ENVIRONMENTAL RESEARCH 2024; 251:118540. [PMID: 38401685 DOI: 10.1016/j.envres.2024.118540] [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: 12/05/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 02/26/2024]
Abstract
The Yangtze River Delta (YRD), one of the most economically developed and industrialized regions in China, is confronted with challenges arising from rapid urbanization, particularly environmental pollution. The collection of surface water and sediment samples from forty-nine sites in the YRD was conducted to analyze 2378-substituted polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) congeners. The detected concentrations of PCDD/Fs were 0-5.3 pg TEQ/L in water and 0.12-1493 pg TEQ/g dw in sediment. The PCDD/Fs contamination in the sediment was widespread in the YRD. There were variations in the congener characteristics of PCDD/Fs in surface water and sediment. The proportion of OCDD was significantly lower in surface water samples compared to sediment, while the less chlorine-substituted homologs were found in larger proportions. To understand the partitioning and behavior of dioxins within the water-sediment system, we calculated the organic carbon normalized partition coefficients and fugacity fraction (ff) of PCDD/F congeners. The results revealed that the PCDD/Fs had not attained a state of distributional equilibrium, and the non-specific hydrophobic effect seemed minimally influential on their partitioning between sediment and water. The average ff values, which varied between 0.06 and 0.63, indicated differing migration directions for the PCDD/F congeners. Source identification analysis provided evidence that the dioxins in the river water were primarily attributed to industrial thermal processes. Iron and steel smelting, along with pesticide production and use, were likely responsible for the sediment contamination. This comprehensive analysis underscores the complex nature of PCDD/Fs pollution in the YRD and highlights the necessity for targeted environmental management strategies.
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Affiliation(s)
- Rongrong Lei
- School of Energy and Environmental Engineering, The University of Science and Technology Beijing, Beijing, 100083, China
| | - Wenbin Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 101408, China; Research Center for Eco-Environmental Sciences, Beijing, 100085, China; Hangzhou Institute for Advanced Study, UCAS, Hangzhou, 310024, China.
| | - Yunchen He
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 101408, China; Research Center for Eco-Environmental Sciences, Beijing, 100085, China
| | - Tianqi Jia
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 101408, China; Research Center for Eco-Environmental Sciences, Beijing, 100085, China
| | - Changliang Li
- Research Center for Eco-Environmental Sciences, Beijing, 100085, China
| | - Wei Su
- School of Energy and Environmental Engineering, The University of Science and Technology Beijing, Beijing, 100083, China.
| | - Yi Xing
- School of Energy and Environmental Engineering, The University of Science and Technology Beijing, Beijing, 100083, China
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Zhang J, Li S, Xia Y, Luo D, Wang X, Li S, Li S. Melatonin alleviates 3,3',4,4',5-pentachlorobenzene induced colon injury by relieving oxidative stress. ENVIRONMENTAL TOXICOLOGY 2023; 38:2993-3005. [PMID: 37598416 DOI: 10.1002/tox.23933] [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: 05/04/2023] [Revised: 07/22/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023]
Abstract
3,3',4,4',5-pentachlorobiphenyl (PCB126) is widely distributed, non-degradable and bioaccumulative, which can affect the function of tissues and organs of the living organisms. Melatonin (MT) is a sort of indole neurohormone that is mainly secreted by the pineal gland. Numerous studies have shown that MT can alleviate intestinal injury through various mechanisms such as antioxidant, anti-inflammatory, and anti-apoptosis. For the above reasons, the aim of this study is to explore the mechanism of intestinal injury in mice after exposure to PCB126 as well as the antagonistic effect of MT. Mice were respectively fed PCB126 (0.326 mg/kg) and/or MT (10 mg/kg) in vivo. In vitro, colonic epithelial cells (MCEC) were treated with PCB126 (150 μM) and/or MT (2 mM). We found that the microscopic structure of colon tissue was impaired after exposure to PCB126. The levels of oxidative stress, the protein and mRNA levels of expression of inflammatory related factors were significantly increased and the expression levels of intestinal tight junction protein were decreased. Notably, MT can promote Nrf2/HO-1 expression level and reduce the colonic injury caused by PCB126. Further in vitro treatment with reactive oxygen species inhibitors (NAC) showed that it significantly alleviated PCB126-induced in MCEC cell damage. In summary, the above results suggested that MT alleviates PCB126-induced colon inflammation by inhibiting the overproduction of reactive oxygen species (ROS) and up-regulating the expression level of intestinal tight junction protein. Our results contribute to the further comprehension of the intestinal toxicity effects of PCB126 and the significant role of MT in preserving the mechanisms of intestinal injury.
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Affiliation(s)
- Jintao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Shanshan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Yu Xia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Dongliu Luo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Xixi Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Shiping Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, People's Republic of China
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
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Gao TH, Han MM, Zhou H, Zhu CX, Yang Y, Zuraini Z, Guo YX, Jiang QC. Effects of berberine hydrochloride on immune response in the crab Charybdis japonica. BMC Genomics 2022; 23:578. [PMID: 35953779 PMCID: PMC9373360 DOI: 10.1186/s12864-022-08798-w] [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: 02/27/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022] Open
Abstract
Berberine hydrochloride is the main effective component of Coptis spp. used in Chinese herbal medicine and its underlying molecular mechanisms, responsible for inducing effects in crustacean species, are not fully understood. In this study, the molecular response of the crab Charybdis japonica to berberine hydrochloride exposure was studied using transcriptome sequencing. The survival rate, gene expression and activities of several immune enzymes were measured after berberine hydrochloride treatments, with or without injection of the pathogenic bacterium Aeromonas hydrophila. A total of 962 differentially expressed genes (464 up-regulated and 498 down-regulated) were observed during exposure to 100 mg/L of berberine hydrochloride and in the control group after 48 h. Enrichment analysis revealed that these genes are involved in metabolism, cellular processes, signal transduction and immune functions, indicating that exposure to berberine hydrochloride activated the immune complement system. This bioactive compound simultaneously activated fibrinogen beta (FGB), fibrinogen alpha (FGA), alpha-2-macroglobulin (A2M), kininogen (KNG), fibrinogen gamma chain (FGB), alpha-2-HS-glycoprotein (AHSG), caspase-8 (CASP8), cathepsin L (CTSL), adenylate cyclase 3 (Adcy3) and MMP1. Its action could significantly increase the survival rate of the crabs injected with A. hydrophila and promote the activity of LZM, Caspas8, FGA, ACP and AKP in the hepatopancreas. When A. hydrophila was added, the neutralization of 300 mg/L berberine hydrochloride maximized the activities of Caspas8, LZM, ACP and AKP. Our results provide a new understanding of the potential effects of berberine hydrochloride on the immune system mechanisms in crustaceans.
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Affiliation(s)
- Tian-Heng Gao
- Institute of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210024, China
| | - Ming-Ming Han
- Biology Program, School of Distance Education, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia
| | - Hui Zhou
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Chen-Xi Zhu
- Freshwater Fisheries Research Institute of Jiangsu Province, 79 Chating East Street, Nanjing, 210017, China
| | - Ying Yang
- Freshwater Fisheries Research Institute of Jiangsu Province, 79 Chating East Street, Nanjing, 210017, China
| | - Zakaria Zuraini
- Biology Program, School of Distance Education, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia
| | - Yan-Xia Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Qi-Chen Jiang
- Freshwater Fisheries Research Institute of Jiangsu Province, 79 Chating East Street, Nanjing, 210017, China.
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Zhang H, Zhang H, Zhao L, Zhou B, Li P, Liu B, Wang Y, Yang C, Huang K, Zhang C. Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 227:112936. [PMID: 34755631 DOI: 10.1016/j.ecoenv.2021.112936] [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: 08/16/2021] [Revised: 10/17/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
This study investigated the presence of 18 dioxin-like and non-dioxin-like polychlorinated biphenyls (dl- and ndl-PCBs), heavy metals (Cd, Hg, Pb, and As) in Chinese mitten crabs (Eriocheir sinensis) and their distribution in Jiangsu, China. Risk assessment and source apportionment were employed for evaluating the eco-toxicological impact and human exposure. It was found that the compositions of PCBs varied spatially, suggesting different sources of pollutants, whilst PCB 28, 105, 114, and 126 were consistently found in all sample types, suggesting a common pollution source remained, and the bio-accumulation process was in effect. The total PCBs in sediment were found much higher than in water, and brown meat had the highest and most diverse PCB congeners among all tissues. The presence of heavy metals was found in all samples in descending order of As>Cd>Pb>Hg and in the order of shell>brown meat>white meat>gill for crabs. The results of risk assessment indicated that the potential carcinogenic and non-carcinogenic risks were within the acceptable range for long-term consumption of the crabs overall. However, the highest toxic equivalent (TEQ), carcinogenic, and non-carcinogenic risks were all recorded in Location C, where dl-PCB 126, 169, and As contributed to the majority of the risks. The ecological risk posed by all HMs was low, but cases of serious point source pollution have been found in the investigated regions, and risks caused by Cd individually should raise concerns. Source apportionment study revealed that the contaminants mostly originated from anthropogenic activities. Natural deposition and transportation played an important role as well.
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Affiliation(s)
- Hanxiaoya Zhang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Haoran Zhang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR China
| | - Ling Zhao
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR China
| | - Beilei Zhou
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China
| | - Pan Li
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China
| | - Beibei Liu
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China
| | - Yulong Wang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China
| | - Cuifeng Yang
- Taiyuan University, 030032 Taiyuan, Shanxi, PR China
| | - Kang Huang
- School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Cunzheng Zhang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China.
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5
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Pollution Biomarkers in the Framework of Marine Biodiversity Conservation: State of Art and Perspectives. WATER 2021. [DOI: 10.3390/w13131847] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Marine biodiversity is threatened by several anthropogenic pressures. Pollution deriving from the discharge of chemical contaminants in the sea represents one of the main threats to the marine environment, influencing the health of organisms, their ability to recover their homeostatic status, and in turn endangering biodiversity. Molecular and cellular responses to chemical pollutants, known as biomarkers, are effect-based methodologies useful for detecting exposure and for assessing the effects of pollutants on biota in environmental monitoring. The present review analyzes and discusses the recent literature on the use of biomarkers in the framework of biodiversity conservation. The study shows that pollution biomarkers can be useful tools for monitoring and assessment of pollution threat to marine biodiversity, both in the environmental quality monitoring of protected areas and the assessment of the health status of species at risk. Moreover, key areas of the research that need further development are suggested, such as the development of omics-based biomarkers specifically addressed to conservation purposes and their validation in the field, the extension of the biomarker study to a wider number of endangered species, and the development of organic guidelines for the application of the biomarker approach in support to conservation policies and management.
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6
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Xu XH, Meng X, Gan HT, Liu TH, Yao HY, Zhu XY, Xu GC, Xu JT. Immune response, MT and HSP70 gene expression, and bioaccumulation induced by lead exposure of the marine crab, Charybdis japonica. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 210:98-105. [PMID: 30840922 DOI: 10.1016/j.aquatox.2019.02.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
In order to understand the mechanisms of the toxicity of lead (Pb) on invertebrates, the immunotoxic effects of Pb in the marine crab, Charybdis japonica, were evaluated in the present study. The crabs were exposed to 0.066, 0.132, 1.318, 2.636, 6.590, and 13.181 μM of lead acetate and a control over 30 days, and the hemolymph was sampled terminally for testing the immunity-related indices, including total hemocyte count (THC), hemocyanin content, the activities of the phenoloxidase (PO) and lysozyme (LSZ). In addition, tissue samples were collected from the hepatopancreas, gill, muscle and ovary after 30 days of exposure for detecting the Pb accumulation in the major organs. The gene expression profiles of metallothionein (MT) and heat shock protein 70 (HSP70) in the hepatopancreas of C. japonica upon exposure to lead acetate over 96 h were also analyzed. The results showed a decline in the majority of the immunity-related parameters after an initial rise, and their levels were significantly lower in the treatment groups compared with those in the control, except in the group exposed to 0.066 μM of lead acetate for 30 days. Furthermore, a significant negative correlation was observed between the lead acetate concentration and the hemocyanin content, the activities of PO and LSZ (P<0.01). The expression levels of MT and HSP70 genes were rapidly induced, reaching a peak level after 12 and 24 h of exposure, respectively, and remained at a significantly higher level than the control after 96 h of exposure. It was also observed that the distribution pattern of Pb in the tissues of exposed crabs was in the order of gill > hepatopancreas > ovary and muscle, and exhibited a concentration-dependent response. Taken together, the results revealed that Pb exposure induced the immunosuppression of C. japonica and resulted in bioaccumulation, which could subsequently increase the disease susceptibility and threaten the food safety.
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Affiliation(s)
- Xing H Xu
- Jiangsu Institute of Marine Resources, Lianyungang 222005, China; Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Lianyungang 222005, China.
| | - Xiao Meng
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Hong T Gan
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Tong H Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Hai Y Yao
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Xiao Y Zhu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Guo C Xu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
| | - Jia T Xu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, China.
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Tran TAM, Malarvannan G, Hoang TL, Nguyen VH, Covaci A, Elskens M. Occurrence of organochlorine pesticides and polychlorinated biphenyls in sediment and fish in Cau Hai lagoon of Central Vietnam: Human health risk assessment. MARINE POLLUTION BULLETIN 2019; 141:521-528. [PMID: 30955764 DOI: 10.1016/j.marpolbul.2019.03.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 02/28/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
This is the first study on polychlorinated biphenyls (PCBs) in fish from the Cau Hai lagoon, a part of the largest coastal lagoon in Southeast Asia. Seven selected PCB congeners and organochlorine pesticides in sediments and edible fish tissues were quantified by GC-MS. The sum of ICES-7 PCB and DDTs concentrations in fish species consumed regularly and of economic value were in ranges 26-43 ng g-1 lw and 182-277 ng g-1 lw, respectively. The ratio between the parent DDT compound and the sum of metabolites, DDE and DDD, was most of the time smaller than 1, suggesting primarily an historical contamination of the lagoon. An agglomerative hierarchical clustering indicates sites located in the north-western part of the Cau Hai lagoon were characterized by above-average concentrations of DDE and DDT. Comparing to previous data, a large decrease in ∑DDT residues can be seen over the past 20 years.
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Affiliation(s)
- Thi Ai My Tran
- Analytical, Environmental and Geo-Chemistry Laboratory, Vrije Universiteit Brussel, 1050 Brussels, Belgium; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue, Hue, Viet Nam.
| | - Govindan Malarvannan
- Toxicological Center, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Thai Long Hoang
- Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue, Hue, Viet Nam
| | - Van Hop Nguyen
- Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue, Hue, Viet Nam
| | - Adrian Covaci
- Toxicological Center, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Marc Elskens
- Analytical, Environmental and Geo-Chemistry Laboratory, Vrije Universiteit Brussel, 1050 Brussels, Belgium
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Ke X, Qi Y, Bao Q, Zhang H. Concentrations, Sources, and TEQ of PCDD/Fs in Sediments from the Liaohe River Protected Areas. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 76:171-177. [PMID: 30259144 DOI: 10.1007/s00244-018-0567-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
A preliminary study was conducted to examine the contamination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in surface sediments collected from the Liaohe River. The contamination levels of PCDD/Fs ranged from 317.3 to 509.3 pg/g dw. According to the calculated WHO-TEQ (Toxic Equivalent Quantity of World Health Organization), the range of PCDD/Fs is 13.87-40.88 pg/g dw. A principal component analysis and a cluster analysis suggested that PCDD/Fs in the sediments were mainly from gasoline/diesel vehicle emissions and solid waste incineration. The study revealed that the establishment of protected areas did not markedly reduced the ecological risk caused by PCDD/Fs in the Liaohe River protected areas sediments. It is necessary to study further the environmental impact of PCDD/Fs on the environment.
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Affiliation(s)
- Xin Ke
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110136, China.
| | - Yifang Qi
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110136, China
| | - Qinghua Bao
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110136, China
| | - Haijun Zhang
- College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110136, China
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Soccio G, Lava R, Ostoich M, Zanon F, Marchiori M, Rado N, Coraluppi E, Marcomini A. Trace elements: critical insights from 15 years of monitoring in the Venice Lagoon catchment basin (Italy). ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:639. [PMID: 30338405 DOI: 10.1007/s10661-018-7032-5] [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: 12/21/2017] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
The study focused on selected trace elements (As, Cd, Cr, Hg, Ni, Pb) monitored in surface waters of the Venice Lagoon catchment basin (North East Italy) over the period 2000-2015. The monitoring was undertaken to verify the achievement of the quality objectives set by the European and national legislations. The available results have been analyzed to evaluate the chemical status of water bodies. The limit of quantification (LOQ) of the applied analytic techniques appears critical for the adequate water monitoring; for some parameters, the percentage of not visible values due to non-satisfactory LOQ was higher in the beginning of the period; the subsequent improvement of LOQ allowed assessing the respect of environmental quality standards (EQSs). The study analyzes time trends in single stations and the differences between detected concentrations in the considered stations. Moreover, maximum concentrations and water flows have been considered to understand the potential correlation. Cumulated frequency curves for the most critical parameters have been built to identify situation of potential overtaking of the EQSs in force. The most polluted sampling stations of the drainage basin for the six trace elements were found in Cuori and Fiumazzo rivers. Although LOQs changed over time, the recorded trends show a quality improvement and a good compliance with respect to EQSs set by European legislation, while considering EQSs set by local special legislation, the objectives are not yet satisfied. Arsenic is ubiquitous; thus, it can be supposed to be originated as a background environmental concentration, while nickel appears of industrial origin according to its point and local presence.
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Affiliation(s)
- Grazia Soccio
- Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino n. 155, 30172, Mestre-Venice, Italy
| | - Roberto Lava
- Laboratory Department, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy
| | - Marco Ostoich
- Provincial Department of Venice, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy.
| | - Francesca Zanon
- Laboratory Department, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy
| | - Maurizio Marchiori
- Laboratory Department, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy
| | - Nadia Rado
- Laboratory Department, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy
| | - Emiliano Coraluppi
- Laboratory Department, Veneto Regional Environmental Prevention and Protection Agency (ARPAV), Via Lissa 6, 30174, Mestre-Venice, Italy
| | - Antonio Marcomini
- Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, Via Torino n. 155, 30172, Mestre-Venice, Italy
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10
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Lou F, Yang T, Han Z, Gao T. Transcriptome analysis for identification of candidate genes related to sex determination and growth in Charybdis japonica. Gene 2018; 677:10-16. [PMID: 30036655 DOI: 10.1016/j.gene.2018.07.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/07/2018] [Accepted: 07/13/2018] [Indexed: 11/27/2022]
Abstract
Charybdis japonica is an important cultured crab in China and it exhibits sex differences in their growth. Growth is an important economic trait that is controlled by many genes. In order to discover the growth-related regulatory mechanisms, whole-body transcriptomic sequencing and comparative analyses in different genders of C. japonica were conducted based on Illumina RNA-seq technology. In the present study, we obtained 62,879,204 and 60,226,334 clean reads in female and male libraries, respectively. 25,000,000 clean reads of every library were randomly selected and compared with Nt database to examine the possible contamination. Results showed that all clean reads were distributed among C. japonica or other species that were closely relative to this species, indicating no-pollution. De novo assembly was performed and a total of 32,543 and 44,174 unigenes were produced in female and male of C. japonica, respectively. Among all the unigenes, 12,591 and 14,455 unigenes of female and male crabs were annotated based on protein databases. Moreover, a total of 33,926 unigenes were found to contain ORFs and 52,839 SSRs were detected. The contrast between male and female C. japonica identifying 1939 unigenes were significantly differentially expressed. In addition, we specifically discussed some gene functions and pathways potentially associated with sex determination and growth. This is the first systematic report of whole transcriptome in C. japonica. The transcriptome information provides a basic resource for further studies on understanding the molecular basis of biological processes in C. japonica and other crustaceans.
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Affiliation(s)
- Fangrui Lou
- Fishery College, Ocean University of China, Qingdao, China
| | - Tianyan Yang
- Fishery College, Zhejiang Ocean University, Zhoushan, China
| | - Zhiqiang Han
- Fishery College, Zhejiang Ocean University, Zhoushan, China.
| | - Tianxiang Gao
- Fishery College, Zhejiang Ocean University, Zhoushan, China
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Cocci P, Capriotti M, Mosconi G, Campanelli A, Frapiccini E, Marini M, Caprioli G, Sagratini G, Aretusi G, Palermo FA. Alterations of gene expression indicating effects on estrogen signaling and lipid homeostasis in seabream hepatocytes exposed to extracts of seawater sampled from a coastal area of the central Adriatic Sea (Italy). MARINE ENVIRONMENTAL RESEARCH 2017; 123:25-37. [PMID: 27855314 DOI: 10.1016/j.marenvres.2016.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/05/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
Recent evidences suggest that the toxicological effects of endocrine disrupting chemicals (EDCs) involve multiple nuclear receptor-mediated pathways, including estrogen receptor (ER) and peroxisome proliferator-activated receptor (PPAR) signaling systems. Thus, our objective in this study was to detect the summated endocrine effects of EDCs with metabolic activity in coastal waters of the central Adriatic Sea by means of a toxicogenomic approach using seabream hepatocytes. Gene expression patterns were also correlated with seawater levels of polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs). We found that seawater extracts taken at certain areas induced gene expression profiles of ERα/vitellogenin, PPARα/Stearoyl-CoA desaturase 1A, cytochrome P4501A (CYP1A) and metallothionein. These increased levels of biomarkers responses correlated with spatial distribution of PAHs/PCBs concentrations observed by chemical analysis in the different study areas. Collectively, our data give a snapshot of the presence of complex EDC mixtures that are able to perturb metabolic signaling in coastal marine waters.
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Affiliation(s)
- Paolo Cocci
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino MC, Italy
| | - Martina Capriotti
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino MC, Italy
| | - Gilberto Mosconi
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino MC, Italy
| | - Alessandra Campanelli
- National Research Council, Institute of Marine Science CNR-ISMAR, L.go Fiera della Pesca, 2, 60125 Ancona, Italy
| | - Emanuela Frapiccini
- National Research Council, Institute of Marine Science CNR-ISMAR, L.go Fiera della Pesca, 2, 60125 Ancona, Italy
| | - Mauro Marini
- National Research Council, Institute of Marine Science CNR-ISMAR, L.go Fiera della Pesca, 2, 60125 Ancona, Italy
| | - Giovanni Caprioli
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, I-62032 Camerino MC, Italy
| | - Gianni Sagratini
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, I-62032 Camerino MC, Italy
| | - Graziano Aretusi
- Controllo Statistico, Pescara, Italy(1); Marine Protected Area Torre del Cerrano, 64025 Pineto, TE, Italy
| | - Francesco Alessandro Palermo
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino MC, Italy.
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12
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Radomyski A, Giubilato E, Ciffroy P, Critto A, Brochot C, Marcomini A. Modelling ecological and human exposure to POPs in Venice lagoon - Part II: Quantitative uncertainty and sensitivity analysis in coupled exposure models. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:1635-1649. [PMID: 27432731 DOI: 10.1016/j.scitotenv.2016.07.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 07/07/2016] [Accepted: 07/08/2016] [Indexed: 06/06/2023]
Abstract
The study is focused on applying uncertainty and sensitivity analysis to support the application and evaluation of large exposure models where a significant number of parameters and complex exposure scenarios might be involved. The recently developed MERLIN-Expo exposure modelling tool was applied to probabilistically assess the ecological and human exposure to PCB 126 and 2,3,7,8-TCDD in the Venice lagoon (Italy). The 'Phytoplankton', 'Aquatic Invertebrate', 'Fish', 'Human intake' and PBPK models available in MERLIN-Expo library were integrated to create a specific food web to dynamically simulate bioaccumulation in various aquatic species and in the human body over individual lifetimes from 1932 until 1998. MERLIN-Expo is a high tier exposure modelling tool allowing propagation of uncertainty on the model predictions through Monte Carlo simulation. Uncertainty in model output can be further apportioned between parameters by applying built-in sensitivity analysis tools. In this study, uncertainty has been extensively addressed in the distribution functions to describe the data input and the effect on model results by applying sensitivity analysis techniques (screening Morris method, regression analysis, and variance-based method EFAST). In the exposure scenario developed for the Lagoon of Venice, the concentrations of 2,3,7,8-TCDD and PCB 126 in human blood turned out to be mainly influenced by a combination of parameters (half-lives of the chemicals, body weight variability, lipid fraction, food assimilation efficiency), physiological processes (uptake/elimination rates), environmental exposure concentrations (sediment, water, food) and eating behaviours (amount of food eaten). In conclusion, this case study demonstrated feasibility of MERLIN-Expo to be successfully employed in integrated, high tier exposure assessment.
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Affiliation(s)
- Artur Radomyski
- University Ca' Foscari of Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, Mestre, 30172 Venezia, Italy
| | - Elisa Giubilato
- University Ca' Foscari of Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, Mestre, 30172 Venezia, Italy
| | - Philippe Ciffroy
- Electricité de France (EDF) R&D, National Hydraulic and Environment Laboratory, 6 quai Watier, 78400 Chatou, France
| | - Andrea Critto
- University Ca' Foscari of Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, Mestre, 30172 Venezia, Italy.
| | - Céline Brochot
- Institut National de l'Environnement Industriel et des Risques (INERIS), Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Parc ALATA BP2, 60550 Verneuil en Halatte, France
| | - Antonio Marcomini
- University Ca' Foscari of Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, Mestre, 30172 Venezia, Italy
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13
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Ciffroy P, Alfonso B, Altenpohl A, Banjac Z, Bierkens J, Brochot C, Critto A, De Wilde T, Fait G, Fierens T, Garratt J, Giubilato E, Grange E, Johansson E, Radomyski A, Reschwann K, Suciu N, Tanaka T, Tediosi A, Van Holderbeke M, Verdonck F. Modelling the exposure to chemicals for risk assessment: a comprehensive library of multimedia and PBPK models for integration, prediction, uncertainty and sensitivity analysis - the MERLIN-Expo tool. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 568:770-784. [PMID: 27169730 DOI: 10.1016/j.scitotenv.2016.03.191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/25/2016] [Accepted: 03/25/2016] [Indexed: 05/03/2023]
Abstract
MERLIN-Expo is a library of models that was developed in the frame of the FP7 EU project 4FUN in order to provide an integrated assessment tool for state-of-the-art exposure assessment for environment, biota and humans, allowing the detection of scientific uncertainties at each step of the exposure process. This paper describes the main features of the MERLIN-Expo tool. The main challenges in exposure modelling that MERLIN-Expo has tackled are: (i) the integration of multimedia (MM) models simulating the fate of chemicals in environmental media, and of physiologically based pharmacokinetic (PBPK) models simulating the fate of chemicals in human body. MERLIN-Expo thus allows the determination of internal effective chemical concentrations; (ii) the incorporation of a set of functionalities for uncertainty/sensitivity analysis, from screening to variance-based approaches. The availability of such tools for uncertainty and sensitivity analysis aimed to facilitate the incorporation of such issues in future decision making; (iii) the integration of human and wildlife biota targets with common fate modelling in the environment. MERLIN-Expo is composed of a library of fate models dedicated to non biological receptor media (surface waters, soils, outdoor air), biological media of concern for humans (several cultivated crops, mammals, milk, fish), as well as wildlife biota (primary producers in rivers, invertebrates, fish) and humans. These models can be linked together to create flexible scenarios relevant for both human and wildlife biota exposure. Standardized documentation for each model and training material were prepared to support an accurate use of the tool by end-users. One of the objectives of the 4FUN project was also to increase the confidence in the applicability of the MERLIN-Expo tool through targeted realistic case studies. In particular, we aimed at demonstrating the feasibility of building complex realistic exposure scenarios and the accuracy of the modelling predictions through a comparison with actual measurements.
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Affiliation(s)
- P Ciffroy
- Electricité de France (EDF) R&D, National Hydraulic and Environment Laboratory, 6 quai Watier, 78400 Chatou, France
| | - B Alfonso
- Facilia AB, Gustavslundsvägen 151C, 167 51 Bromma, Sweden
| | - A Altenpohl
- Austrian Standards Institute, Heinestr. 38, 1060 Vienna, Austria
| | - Z Banjac
- Agencia Estatal Consejo Superior de Investigaciones Científicas CSIC, Barcelona, Spain
| | - J Bierkens
- EUrelations AG, Technoparkstr. 1, 8005 Zurich, Switzerland
| | - C Brochot
- Flemish Institute for Technological Research (VITO), Human and Environmental Exposure and Risk Assessment, VITO - Health, Mol, Belgium
| | - A Critto
- Institut National de l'Environnement Industriel et des Risques (INERIS), Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Parc ALATA BP2, 60550 Verneuil en Halatte, France
| | - T De Wilde
- University Ca' Foscari Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, 30172 Mestre-Venezia, Italy
| | - G Fait
- Arche cvba, Liefkensstraat 35d, 9032 Gent (Wondelgem), Belgium
| | - T Fierens
- EUrelations AG, Technoparkstr. 1, 8005 Zurich, Switzerland
| | - J Garratt
- AIEFORIA srl, via Gramsci 22, 43036 Fidenza (PR), Italy
| | - E Giubilato
- Institut National de l'Environnement Industriel et des Risques (INERIS), Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Parc ALATA BP2, 60550 Verneuil en Halatte, France
| | - E Grange
- AIEFORIA srl, via Gramsci 22, 43036 Fidenza (PR), Italy
| | - E Johansson
- Facilia AB, Gustavslundsvägen 151C, 167 51 Bromma, Sweden
| | - A Radomyski
- Institut National de l'Environnement Industriel et des Risques (INERIS), Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Parc ALATA BP2, 60550 Verneuil en Halatte, France
| | - K Reschwann
- Enviresearch Ltd., Herschel Building/Nanotechnology Centre, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - N Suciu
- Istituto di Chimica Agraria ed Ambientale, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122, Piacenza, Italy
| | - T Tanaka
- Electricité de France (EDF) R&D, National Hydraulic and Environment Laboratory, 6 quai Watier, 78400 Chatou, France
| | - A Tediosi
- Arche cvba, Liefkensstraat 35d, 9032 Gent (Wondelgem), Belgium
| | | | - F Verdonck
- University Ca' Foscari Venice, Department of Environmental Sciences, Informatics and Statistics, Via Torino 155, 30172 Mestre-Venezia, Italy
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14
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Liu H, Nie FH, Lin HY, Ma Y, Ju XH, Chen JJ, Gooneratne R. Developmental toxicity, oxidative stress, and related gene expression induced by dioxin-like PCB 126 in zebrafish (Danio rerio). ENVIRONMENTAL TOXICOLOGY 2016; 31:295-303. [PMID: 25213558 DOI: 10.1002/tox.22044] [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: 03/31/2014] [Revised: 08/17/2014] [Accepted: 08/23/2014] [Indexed: 06/03/2023]
Abstract
3,3',4,4',5-Pentachlorobiphenyl (PCB126) cause multiple adverse effects in organisms including animals and humans. Although PCB toxicities are linked to oxidative damage in rodents, the mechanism in early life stages of zebrafish is not clear. To explore the developmental toxicity mechanism of PCB126, three paradigms (toxicological phenotypes, biochemical changes, and molecular changes) were studied in 3-h postfertilization (hpf) zebrafish (Danio rerio) embryos exposed to different PCB126 concentrations (0, 16, 32, 64, and 128 μg/L) until 168 hpf. Developmental malformations, including pericardial and yolk sac edema, impaired lower jaw growth, spinal curvature, head edema and failure to inflate the swim bladder were observed, some as early as 72 hpf. Mortality was not apparent in early stages but significantly increased in a dose-dependent manner from 144 hpf onward. A dose-dependent significant increase in malformation rate was observed from 72 hpf onward with up to 100% at 132 hpf in embryos exposed to 128 μg/L of PCB126. Higher doses of PCB126 significantly decreased the copper-zinc superoxide dismutase (CuZn-Sod), catalase (Cat), and glutathione peroxidase (Gpx) enzyme activities at 96, 132 hpf, but markedly declined from thereafter. PCB126 at 128 μg/L significantly increased the malondialdehyde content at 72, 96, and 132 hpf. The transcriptional gene expression of antioxidant enzymes Cat and Gpx was upregulated in embryos exposed to 64 μg/L of PCB126 at 24 and 96 hpf. Sod1 messenger RNA (mRNA) was low in embryos exposed to 32 μg/L at 72 and 96 hpf but was induced in embryos exposed to 64 and 128 μg/L doses at 132 hpf. Collectively, the results suggest oxidative stress as a major factor in the induction of multiple developmental abnormalities in early life stages of zebrafish exposed to PCB126. However, the relationship between the antioxidant enzyme activity and the mRNA expression was not clear and the potential reasons for this are discussed.
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Affiliation(s)
- Han Liu
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Fang-Hong Nie
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Hong-Ying Lin
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yi Ma
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Xiang-Hong Ju
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jin-Jun Chen
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ravi Gooneratne
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, 7647, New Zealand
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15
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Liu H, Nie FH, Lin HY, Ma Y, Ju XH, Chen JJ, Gooneratne R. Developmental toxicity, EROD, and CYP1A mRNA expression in zebrafish embryos exposed to dioxin-like PCB126. ENVIRONMENTAL TOXICOLOGY 2016; 31:201-10. [PMID: 25099626 DOI: 10.1002/tox.22035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 07/22/2014] [Accepted: 07/25/2014] [Indexed: 05/15/2023]
Abstract
Dioxin-like PCB126 is a persistent organic pollutant that causes a range of syndromes including developmental toxicity. Dioxins have a high affinity for aryl hydrocarbon receptor (AhR) and induce cytochrome P4501A (CYP1A). However, the role of CYP1A activity in developmental toxicity is less clear. To better understand dioxin induced developmental toxicity, we exposed zebrafish (Danio rerio) embryos to PCB126 at concentrations of 0, 16, 32, 64, and 128 μg L(-1) from 3-h post-fertilization (hpf) to 168 hpf. The embryonic survival rate decreased at 144 and 168 hpf. The fry at 96 hpf displayed gross developmental malformations, including pericardial and yolk sac edema, spinal curvature, abnormal lower jaw growth, and non-inflated swim bladder. The pericardial and yolk sac edema rate significantly increased and the heart rate declined from 96 hpf compared with the controls. PCB126 did not alter the hatching rate. To elucidate the mechanism of PCB126-induced developmental toxicity, we conducted ethoxyresorufin-O-deethylase (EROD) in vivo assay to determine CYP1A enzyme activity, and real-time PCR to study the induction of CYP1A mRNA gene expression in embryo/larval zebrafish at 24, 72, 96, and 132 hpf. In vivo EROD activity was induced by PCB126 at 16 μg L(-1) concentration as early as 72 hpf but significant increases were observed only in zebrafish exposed to 64 and 128 μg L(-1) doses (p < 0.005) at 72, 96, and 132 hpf. Induction of CYP1A mRNA expression was significantly upregulated in zebrafish exposed to 32 and 64 μg L(-1) at 24, 72, 96, and 132 hpf. Overall, the severe pericardial and yolk sac edema and reduced heart rate suggest that heart defects are a sensitive endpoint, and the general trend of dose-dependent increase in EROD activity and induction of CYP1A mRNA gene expression provide evidence that the developmental toxicity of PCB126 to zebrafish embryos is mediated by activation of AhR.
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Affiliation(s)
- Han Liu
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Fang-Hong Nie
- Department of Food Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Hong-Ying Lin
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yi Ma
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Xiang-Hong Ju
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jin-Jun Chen
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, 7647, New Zealand
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16
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Son MH, Kim J, Shin ES, Seo SH, Chang YS. Diastereoisomer- and species-specific distribution of hexabromocyclododecane (HBCD) in fish and marine invertebrates. JOURNAL OF HAZARDOUS MATERIALS 2015; 300:114-120. [PMID: 26163486 DOI: 10.1016/j.jhazmat.2015.06.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/04/2015] [Accepted: 06/09/2015] [Indexed: 06/04/2023]
Abstract
The levels and distributional characteristics of hexabromocyclododecane (HBCD) diastereoisomers have been largely reported for various fish and select shellfish. In this study, we reclassified a number and variety of marine invertebrates, including shellfish, to further contribute to the comprehensive understanding of the effects and assessment of human exposure to HBCD. Overall, 30 marine invertebrate species (n=188) were investigated and the following order of ∑2HBCD (α- and γ-HBCD) was observed: fish>chordata>cephalopoda>echinodermata>bivalve>crustacea. The marine invertebrates that were reclassified into nektonic and benthic organisms showed similar concentration of ∑2HBCD. The feeding habits and modes of the marine organisms were considered to compare the degree of bioaccumulation and diastereoisomer-specific distribution of HBCD due to the effects of the environment in and around pollution sources, as well as the organisms' metabolic capacities. To the best of our knowledge, this is the first study to examine the species-specific distribution patterns of HBCD for both fish and marine invertebrates. We expect to significantly expand the understanding of the environmental fate of HBCD for marine organisms.
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Affiliation(s)
- Min-Hui Son
- School of Environmental Science and Engineering, POSTECH, San 31, Hyojadong, Namgu, Pohang 790-784, Republic of Korea
| | - Jongchul Kim
- School of Environmental Science and Engineering, POSTECH, San 31, Hyojadong, Namgu, Pohang 790-784, Republic of Korea
| | - Eun-Su Shin
- School of Environmental Science and Engineering, POSTECH, San 31, Hyojadong, Namgu, Pohang 790-784, Republic of Korea
| | - Sung-Hee Seo
- School of Environmental Science and Engineering, POSTECH, San 31, Hyojadong, Namgu, Pohang 790-784, Republic of Korea
| | - Yoon-Seok Chang
- School of Environmental Science and Engineering, POSTECH, San 31, Hyojadong, Namgu, Pohang 790-784, Republic of Korea.
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17
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Ribeiro C, Ribeiro AR, Tiritan ME. Occurrence of persistent organic pollutants in sediments and biota from Portugal versus European incidence: A critical overview. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2015; 51:143-153. [PMID: 26671606 DOI: 10.1080/03601234.2015.1108793] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Persistent organic pollutants (POPs) are widespread compounds, such as organohalogenated compounds, polycyclic aromatic hydrocarbons (PAHs) and pesticides, which can be found in all types of environmental compartments. Their presence in the aquatic environment is a worldwide problem, with emphasis on sediments which act as depository and consequently as a source of hydrophobic, recalcitrant and harmful compounds. Besides, these pollutants might affect the reproduction and mortality of living organisms, diverging in their potential to bioaccumulate in tissues. The present paper aims to review the occurrence of POPs in sediments and biota from the coastal, estuarine and river areas of Portugal. The list of the studied compounds comprises organohalogenated compounds, PAHs, organometallic compounds, pesticides, sterols, fatty acids and pharmaceutical compounds. The contamination of sediments by various pollutants is presented, such as PAHs up to 7,350 ng g(-1) found in Sado estuary and polychlorinated biphenyls up to 62.2 ng g(-1) in the case of sediments collected in Ria de Aveiro. The occurrence of these persistent toxic substances in sediments demonstrates aquatic contamination from agricultural, industrial and urban discharges and the concern about the potential risks to aquatic organisms, wildlife and humans. In fact, several classes of POPs have also been found in biota, such as polychlorinated biphenyls up to 810.9 ng g(-1) in sentinel fish from the Douro River estuary and pesticides in bivalves from the Sado River estuary. The importance of further systematic research on sediments and biota is here highlighted to compare the contamination of these two reservoirs; to assess their spatial and temporal variation; and to determine other classes of POPs that were not investigated yet (e.g., industrial compounds, estrogens and many classes of pharmaceuticals).
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Affiliation(s)
- Cláudia Ribeiro
- a CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies, Rua Central de Gandra , Gandra PRD , Portugal
| | - Ana Rita Ribeiro
- b LCM - Laboratory of Catalysis and Materials - Associate Laboratory LSRE-LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias , Porto , Portugal
| | - Maria Elizabeth Tiritan
- a CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies, Rua Central de Gandra , Gandra PRD , Portugal
- c Organic Chemistry and Pharmacy Laboratory , Department of Science Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira , Porto , Portugal
- d Interdisciplinary Centre for Marine and Environmental Research (CIIMAR / CIMAR), University of Porto , Rua dos Bragas , Porto , Portugal
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18
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Chang HJ, Lin TF, Whang LM, Wu YJ. Congener profiles of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in sediment, water, and fish at a soil contamination site in Taiwan. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 51:251-261. [PMID: 26654383 DOI: 10.1080/10934529.2015.1094346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The relationship of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in sediment, water, and fish was studied for 55 fish farms near a contaminated site in Tainan, Taiwan. Samples were collected from the farms and analyzed for seventeen 2,3,7,8-substituted PCDD/Fs congeners. High correlations were found between PCDD/Fs in water and sediment in regard to both concentration and toxicity (R(2) = 0.933 for concentration and R(2) = 0.832 for toxicity). The congener profiles of the 17 PCDD/Fs in water were similar to those in the sediment. However, the PCDD/Fs congener composition in the fish and fish belly samples were different from those in the sediment and water samples obtained from the same fish farm and were also different among the fish samples. It is thus suggested that the biotic PCDD/Fs distribution is more complex than the abiotic PCDD/Fs distribution. Among the seven factors analyzed, only the lipid percentage presented a relationship with the PCDD/Fs congener composition in the fish and fish bellies. A multiple linear regression of the concentration of each congener in the fish was conducted using the concentration of each congener in the site-matched sediment and the lipid content of the fish as independent variables. The results showed that only seven PCDD/Fs congeners with a lower degree of chlorination, which were 4-6 chlorine substitutes, in the fish presented a significant correlation with the lipid content in the fish and their concentration in sediment (r > 0.65, P < 0.005 for both independent variables). In addition, the octanol-water partition coefficients were not significantly related to this distribution behavior.
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Affiliation(s)
- Hwang-Jen Chang
- a Environmental Protection Bureau, Tainan City Government , Tainan City , Taiwan
| | - Tsair-Fuh Lin
- b Department of Environmental Engineering and Global Water Quality Research Center , National Cheng Kung University , Tainan City , Taiwan
| | - Liang-Ming Whang
- b Department of Environmental Engineering and Global Water Quality Research Center , National Cheng Kung University , Tainan City , Taiwan
| | - Yi-Ju Wu
- b Department of Environmental Engineering and Global Water Quality Research Center , National Cheng Kung University , Tainan City , Taiwan
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Visciano P, Scortichini G, Suzzi G, Diletti G, Schirone M, Martino G. Concentrations of Contaminants with Regulatory Limits in Samples of Clam (Chamelea gallina) Collected along the Abruzzi Region Coast in Central Italy. J Food Prot 2015; 78:1719-28. [PMID: 26319726 DOI: 10.4315/0362-028x.jfp-15-082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Concentrations of pollutants with regulatory limits were determined in specimens of Chamelea gallina, a species of clam collected along the Abruzzi coastal region of the central Adriatic Sea. Nine sampling sites were selected to evaluate the distribution of contaminants in the environment and the health risk for consumers. The concentrations of all the examined compounds were lower than the maximums set by European legislation. Polycyclic aromatic hydrocarbons and total mercury were below the detection limit (0.18 μg/kg for benzo[a]anthracene, 0.30 μg/kg for chrysene, 0.12 μg/kg for benzo[b]fluoranthene, 0.08 μg/kg for benzo[a]pyrene, and 0.0050 mg/kg for total mercury) in all the analyzed samples. Mean concentrations of lead and cadmium were 0.104 and 0.110 mg/kg, respectively. Of the non-dioxin-like polychlorinated biphenyls, PCB-153, PCB-180, and PCB-138 were the most abundant at all sampling sites (1a to 9a) at 0.25 mi (ca. 0.4 km) and at some sampling sites (1b, 2b, 3b, 5b and 7b) at 0.35 mi (ca. 0.56 km). Principal component analysis revealed that the concentrations of dioxin-like polychlorinated biphenyls were similar at the majority of sampling sites, and O8CDD and 2,3,7,8-T4CDF were the predominant dioxin congeners.
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Affiliation(s)
- Pierina Visciano
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Mosciano Sant'Angelo, Italy
| | - Giampiero Scortichini
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy
| | - Giovanna Suzzi
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Mosciano Sant'Angelo, Italy
| | - Gianfranco Diletti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy
| | - Maria Schirone
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Mosciano Sant'Angelo, Italy.
| | - Giuseppe Martino
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Mosciano Sant'Angelo, Italy
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Liu H, Gooneratne R, Huang X, Lai R, Wei J, Wang W. A rapid in vivo zebrafish model to elucidate oxidative stress-mediated PCB126-induced apoptosis and developmental toxicity. Free Radic Biol Med 2015; 84:91-102. [PMID: 25770664 DOI: 10.1016/j.freeradbiomed.2015.03.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 01/10/2015] [Accepted: 03/02/2015] [Indexed: 01/16/2023]
Abstract
Dioxin-like 3,3',4,4',5-pentachlorobiphenyl (PCB126) is one of the most potent and widespread environmental pollutants. Although PCB126-induced toxicity is related to the aryl hydrocarbon receptor pathway, there is still no study that has constructed an in vivo visual model to clarify the role of the Nrf2/ARE signaling pathway in the oxidative stress mechanism of PCB126-induced toxicity. In the present study, an in vivo zebrafish model of nrf2a fused to enhanced green fluorescent protein (nrf2a-eGFP) was constructed. The zebrafish embryos microinjected with nrf2a-eGFP (72h postfertilization) were exposed to various concentrations of PCB126 (0, 25, 50, 100, 200μg/L) or 30mMN-acetylcysteine (NAC)+200μg/L PCB126. After 72h exposure, PCB126 significantly increased the malformation rates and induced eGFP expression in a dose-dependent manner in several zebrafish tissue types. The distribution of eGFP fluorescence coincided with developmental deformity sites. NAC pretreatment effectively counteracted PCB126-induced developmental toxicity including heart rate, pericardial edema, and body length. The highest PCB126 dose, 200μg/L, produced marked apoptosis in the eye, gill, and trunk detected by the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay. At 48 and 72h exposure, 200μg/L PCB126 affected glutathione metabolism as evidenced by decreased glutathione and increased glutathione disulfide concentrations, indicative of oxidative stress. These effects were also counteracted by NAC pretreatment. Furthermore, the Nrf2-regulated genes gclc, gpx, gstp1, and hmox1 were significantly induced at 24, 48, and 72h at the highest PCB126 exposures but not in the NAC-pretreated group. In addition, a significant increase in ROS generation was detected in zebrafish larvae at 72h PCB126 exposure, which might offer a link for future mechanistic studies. Collectively, these data suggest that PCB126-induced developmental toxicity and apoptosis in the nrf2a-eGFP-injected zebrafish model are due to oxidative stress mediated by disruption to glutathione metabolism and changes in Nrf2-regulated gene expression.
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Affiliation(s)
- Han Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, People׳s Republic of China
| | - Ravi Gooneratne
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Xin Huang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, People׳s Republic of China
| | - Ruifang Lai
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, People׳s Republic of China
| | - Jin Wei
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, People׳s Republic of China
| | - Weimin Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, People׳s Republic of China.
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Agbohessi PT, Imorou Toko I, Ouédraogo A, Jauniaux T, Mandiki SNM, Kestemont P. Assessment of the health status of wild fish inhabiting a cotton basin heavily impacted by pesticides in Benin (West Africa). THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 506-507:567-84. [PMID: 25433386 DOI: 10.1016/j.scitotenv.2014.11.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 05/21/2023]
Abstract
To determine the impact of agricultural pesticides used in cotton cultivation on the health status of fish living in a Beninese cotton basin, we compared the reproductive and hepatic systems of fish sampled from rivers located in both contaminated and pristine conditions. Different types of biomarkers, including biometric indices (a condition factor K, a gonadosomatic index GSI, and a hepatosomatic index HSI), plasma levels of sex steroids (11-ketotestosterone 11-KT, testosterone T and estradiol-17β E2) and the histopathology of the gonads and liver, were investigated for two different trophic levels of the following two fish species: the Guinean tilapia Tilapia guineensis and the African catfish Clarias gariepinus. The fish were captured during both the rainy season (when there is heavy use of pesticides on cotton fields) and the dry season from one site, in Pendjari River (reference site), which is located outside the cotton-producing basin, and from three other sites on the Alibori River within the cotton-producing basin. Comparing fish that were sampled from contaminated (high levels of endosulfan, heptachlor and DDT and metabolites) and reference sites, the results clearly indicated that agricultural pesticides significantly decreased K and GSI while they increased HSI, regardless of the season, species and sex of the fish. These pesticides also induced a decrease in the plasma levels of 11-KT and T and increased those of E2. The histopathology of the testes revealed, in both species, a high rate of testicular oocytes, up to 50% in the African catfish, downstream of the Alibori River, which indicated estrogenic effects from the pesticides. The disruption of male spermatogenesis primarily included necrosis, fibrosis and the presence of foam cells in the lobular lumen. The histopathology of the ovaries revealed high levels of pre-ovulatory follicular atresia, impaired oogenesis, a decrease in the oocyte vitellogenic diameter and other lesions, such as fibrosis, vacuolation and melano-macrophagic centers. The histopathology of the liver revealed the presence of necrosis, hypertrophic hepatocytes, foci of vacuolation, glycogen depletion and hemosiderin. An assessment of the general health of the fish indicated that all of the sampled fish from the polluted sites were in poorer health compared with those from the reference site but that the African catfish appeared much more affected than the Guinean tilapia, regardless of the sex and season. In conclusion, the overall results indicated that agricultural pesticides significantly impair the endocrine regulation of fish living in the Beninese cotton basin and that this would most likely be one of the causes of the severe damage observed in the liver and gonads and the reduced health condition.
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Affiliation(s)
- Prudencio T Agbohessi
- Research Unit in Environmental and Evolutionary Biology (URBE), University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium; Research Unit in Aquaculture and Aquatic Ecotoxicology (URAEAq), University of Parakou, Benin.
| | - Ibrahim Imorou Toko
- Research Unit in Aquaculture and Aquatic Ecotoxicology (URAEAq), University of Parakou, Benin
| | - Alfred Ouédraogo
- Laboratory of Histology, Embryology and Molecular biology, University of Abomey-Calavi, Benin
| | - Thierry Jauniaux
- Department of General Pathology, Faculty of Veterinary Medicine, University of Liege, Belgium
| | - S N M Mandiki
- Research Unit in Environmental and Evolutionary Biology (URBE), University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
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Losasso C, Bille L, Patuzzi I, Lorenzetto M, Binato G, Dalla Pozza M, Ferrè N, Ricci A. Possible influence of natural events on heavy metals exposure from shellfish consumption: a case study in the north-East of Italy. Front Public Health 2015; 3:21. [PMID: 25699249 PMCID: PMC4316607 DOI: 10.3389/fpubh.2015.00021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 01/19/2015] [Indexed: 12/13/2022] Open
Abstract
The objective of this study was the estimation of the exposure over time to heavy metals (cadmium, mercury, and lead) due to shellfish consumption in the Veneto Region, Italy. Shellfish consumption was investigated by a food frequency consumption survey. Altogether, 1949 households, stratified into the five most populated areas of the Veneto Region, were involved in the study. Exposure estimation to heavy metals was carried out taking into account the level of metal measured in samples of Manila clams (Ruditapes philippinarum) and grooved carpet shell (Ruditapes decussatus), collected in the frame of the monitoring activities of mollusk production areas of Veneto Region, between January 2007 and December 2012. A general high contribution of the considered shellfish to the Tolerable Weekly Intake was noticed in the case of cadmium, especially in 2011, when a considerable increase in cadmium intake was estimated. This was probably due to a heavy rainfall event that triggered catastrophic flooding with high impact on shellfish capture areas in November 2010. The results strongly emphasize the importance of dealing with food safety in a holistic way, taking into account the potential impact of extraordinary natural events on food chain contamination, in order to identify food hazards at an early stage, before developing into a real risk for consumers.
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Affiliation(s)
- Carmen Losasso
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Laura Bille
- Laboratory of Epidemiology of Water Environment, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Ilaria Patuzzi
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Monica Lorenzetto
- GIS Unit, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Giovanni Binato
- Laboratory of Chemistry, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Manuela Dalla Pozza
- Laboratory of Epidemiology of Water Environment, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Nicola Ferrè
- GIS Unit, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Antonia Ricci
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
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Martins MVA, Frontalini F, Laut LLM, Silva FS, Moreno J, Sousa S, Zaaboub N, El Bour M, Rocha F. Foraminiferal biotopes and their distribution control in Ria de Aveiro (Portugal): a multiproxy approach. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:8875-8897. [PMID: 25249041 DOI: 10.1007/s10661-014-4052-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 09/11/2014] [Indexed: 06/03/2023]
Abstract
Ria de Aveiro, which is located in the centre of Portugal (40° 38' N, 8° 45' W), is a well-mixed and complex coastal lagoon that is separated from the sea by a sandy barrier and connects with the Atlantic through an artificial inlet. Tidal currents are the main factor controlling the lagoon's hydrodynamics and, to a great extent, the sedimentary dynamic. The inner lagoonal zones receive input from several rivers and experience the pressure caused by the accumulation of organic matter and pollutants (namely, trace metals) from diverse anthropic activities. This paper is the first piece of work aiming to recognize, characterize and explain the main benthic foraminiferal biotopes in Ria de Aveiro. To provide a broad overview of this kind of setting, our results are compared to those of previous published studies conducted in similar transitional environments. The research is based on an investigation of 225 sites spread throughout this ecosystem. Utilizing a statistical approach, this study analyses the details of dead benthic foraminiferal assemblages composed of 260 taxa, the texture and composition (mineralogical and geochemical) of the sediment and physicochemical data. On the basis of the results of R-mode and Q-mode cluster analyses, several different biotopes can be defined as marsh biotope/near-marsh biotope; marginal urban/marginal urban mixing biotope; inner-outer lagoon biotope or enclosed lagoon; outer lagoon biotope, mixed sub-biotope; and outer lagoon, marine sub-biotope. These biotopes are related to foraminifera assemblages and substrate type and are influenced by local currents, water depth, chemical and physicochemical conditions, river or oceanic proximity, and anthropogenic impact, as evidenced by the mapping of the six factor loadings of the principal component analysis conducted herein. Based on a similar methodology of analysis as that applied in previous studies in the Lagoon of Venice, comparable biotypes were identified in Lagoon of Aveiro.
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Affiliation(s)
- Maria Virgínia Alves Martins
- Faculdade de Geologia, Departamento de Estratigrafia e Paleontologia, Universidade do Estado do Rio de Janeiro, Av. São Francisco Xavier, 524, sala 4037 F, Maracanã, 20550-013, Rio de Janeiro, RJ, Brasil,
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24
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Di Leo A, Annicchiarico C, Cardellicchio N, Giandomenico S, Conversano M, Castellano G, Basile F, Martinelli W, Scortichini G, Spada L. Monitoring of PCDD/Fs and dioxin-like PCBs and seasonal variations in mussels from the Mar Grande and the Mar Piccolo of Taranto (Ionian Sea, Southern Italy). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:13196-13207. [PMID: 24443048 DOI: 10.1007/s11356-014-2495-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 12/29/2013] [Indexed: 06/03/2023]
Abstract
The levels and specific profiles of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in Mytilus galloprovincialis from the Mar Grande and the Mar Piccolo of Taranto were determined during the extensive monitoring plan of Local Health Authority to assess PCDD/Fs and DL-PCBs contamination in food and farm products, within 20 km from the industrial areas of Taranto, between March and December 2011. The average Total Toxicity Equivalence (TEQ) values for the sum of PCDD/F and DL-PCBs ranged from 1.61 to 5.63 pg WHO2005-TEQ g(-1) wet weight basis, with the highest in the first inlet of the Mar Piccolo. In particular, DL-PCBs were the dominant chemicals in all samples, followed by PCDFs and PCDDs. Congener patterns in mussels were similar, indicating a homogeneous behavior in studied areas and, probably, the same type of source. The seasonal concentrations trend showed a relevant increase of dioxin and dioxin-like PCBs TEQs during the summer months, exceeding the limits set by the European Community for food and foodstuff. Reducing PCDD/Fs and PCBs is necessary to decrease contamination levels in order to safeguard marine ecosystem and human health in the Taranto area.
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Affiliation(s)
- Antonella Di Leo
- Institute for Coastal Marine Environment, Operative Unit of Taranto, C.N.R., via Roma 3, 74123, Taranto, Italy
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25
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Sfriso A, Facca C, Raccanelli S. PCDD/F and dioxin-like PCB bioaccumulation by Manila clam from polluted areas of Venice lagoon (Italy). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 184:290-297. [PMID: 24077257 DOI: 10.1016/j.envpol.2013.08.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/29/2013] [Accepted: 08/05/2013] [Indexed: 06/02/2023]
Abstract
POP bioaccumulation pathways in the clam Tapes philippinarum were examined for two years from juveniles to adult size. Two polluted sites, one with sandy sediment, the other muddy were compared with a reference site characterized by low contamination levels. Juvenile clams coming from a hatchery were reared both on the sediment and in nets suspended at 30 cm from the bottom. POP changes in clam tissue were related to the concentrations recorded in sediments and in the particulate matter during the entire fattening period. Results provided interesting data on the relationships between environmental contamination and bioaccumulation. Contrary to studies on the decontamination times of the clams collected in polluted areas, this work investigates the preferential clam bioaccumulation pathways during growth under different environmental conditions. In general POP bioaccumulation resulted to be correlated to concentrations in SPM rather than in sediments and was higher in S-clams rather than in B-clams.
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Affiliation(s)
- Adriano Sfriso
- Department of Environmental Sciences, Informatics & Statistics, University Ca' Foscari of Venice, Calle Larga, Santa Marta, 2137, 30123 Venice, Italy.
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Bradshaw C, Tjensvoll I, Sköld M, Allan IJ, Molvaer J, Magnusson J, Naes K, Nilsson HC. Bottom trawling resuspends sediment and releases bioavailable contaminants in a polluted fjord. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 170:232-241. [PMID: 22842052 DOI: 10.1016/j.envpol.2012.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 06/11/2012] [Accepted: 06/14/2012] [Indexed: 06/01/2023]
Abstract
Sediments are sinks for contaminants in the world's oceans. At the same time, commercial bottom trawling is estimated to affect around 15 million km(2) of the world's seafloor every year. However, few studies have investigated whether this disturbance remobilises sediment-associated contaminants and, if so, whether these are bioavailable to aquatic organisms. This field study in a trawled contaminated Norwegian fjord showed that a single 1.8 km long trawl pass created a 3-5 million m(3) sediment plume containing around 9 t contaminated sediment; ie. 200 g dw m(-2) trawled, equivalent to c. 10% of the annual gross sedimentation rate. Substantial amounts of PCDD/Fs and non-ortho PCBs were released from the sediments, likely causing a semi-permanent contaminated sediment suspension in the bottom waters. PCDD/Fs from the sediments were also taken up by mussels which, during one month, accumulated them to levels above the EU maximum advised concentration for human consumption.
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Affiliation(s)
- C Bradshaw
- Department of Systems Ecology, Stockholm University, S-10691 Stockholm, Sweden.
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27
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Wang Y, Lam JCW, So MK, Yeung LWY, Cai Z, Hung CLH, Lam PKS. Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in waterbird eggs of Hong Kong, China. CHEMOSPHERE 2012; 86:242-247. [PMID: 22024097 DOI: 10.1016/j.chemosphere.2011.09.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 08/19/2011] [Accepted: 09/22/2011] [Indexed: 05/31/2023]
Abstract
Concentrations of PCDD/Fs, PCBs and PBDEs were measured in 56 egg samples collected from waterbirds of different species (Great Egret, Little Egret, Night Heron and Chinese Pond Heron) from different regions of Hong Kong (Ho Sheung Heung, Mai Po Village and Mai Po Lung Village) during 2000 and 2006. Dominance of 2,3,4,7,8-PeCDF indicates a signature associated with commercial usage of PCBs. Although no significant variations were observed within- and between-site in the levels of PCDD/Fs, coplanar PCBs and PBDEs, the concentrations of coplanar PCBs were much higher than PCDD/Fs. Similarity in composition profiles of PCDD/F and coplanar PCBs from different egretries is possibly associated with non-point sources of these contaminants to Hong Kong. Predominant accumulation of BDE-47, BDE-99 and BDE-100 suggested the penta-BDE technical mixtures usage in Hong Kong and its vicinity. Toxic equivalency and Monte Carlo simulation technique showed potential risks on waterbirds due to their exposure to PCDD/Fs.
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Affiliation(s)
- Yuan Wang
- State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, People's Republic of China
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Li H, Liu L, Lin C, Wang S. Plant uptake and in-soil degradation of PCB-5 under varying cropping conditions. CHEMOSPHERE 2011; 84:943-9. [PMID: 21724228 DOI: 10.1016/j.chemosphere.2011.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 04/05/2011] [Accepted: 06/01/2011] [Indexed: 05/31/2023]
Abstract
A 60-d greenhouse experiment was conducted to investigate the uptake and in-soil degradation of PCB-5 under single cropping and intercropping conditions involving three crop plant species: pumpkin, soybean and corn. Volatilization of PCB-5 from the soil surface was also tested. The results show that while uptake of PCB-5 by the test plant species is possible and the root concentration of PCB-5 had a control on the upward transport of PCB-5 to the above-ground portion of the plants, the PCB-5 extracted by the plants mainly accumulated in the root materials. Phytoextraction contributed insignificantly toward the loss of the soil-borne PCB-5. Volatilization of PCB-5 from the soil was recorded but it appeared that this did not result in a marked loss of PCB-5 in the bulk soil though it might cause remarkable removal of PCB-5 in a thin layer of the topsoil (1 mm). It is likely that the in-soil biodegradation contributed markedly to the observed reduction in soil-borne PCB-5. The in-soil biodegradation of PCB-5 was significantly enhanced under intercropping conditions, which appeared to be related to increased microbial activities, particularly bacterial activities. The soil residual PCB-5 was correlated with the activity of the following enzymes: catalase (CAT), polyphenol oxidase (PPO) and peroxidase (POD).
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Affiliation(s)
- Huashou Li
- Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China
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29
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Milan M, Coppe A, Reinhardt R, Cancela LM, Leite RB, Saavedra C, Ciofi C, Chelazzi G, Patarnello T, Bortoluzzi S, Bargelloni L. Transcriptome sequencing and microarray development for the Manila clam, Ruditapes philippinarum: genomic tools for environmental monitoring. BMC Genomics 2011; 12:234. [PMID: 21569398 PMCID: PMC3107815 DOI: 10.1186/1471-2164-12-234] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Accepted: 05/12/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Manila clam, Ruditapes philippinarum, is one of the major aquaculture species in the world and a potential sentinel organism for monitoring the status of marine ecosystems. However, genomic resources for R. philippinarum are still extremely limited. Global analysis of gene expression profiles is increasingly used to evaluate the biological effects of various environmental stressors on aquatic animals under either artificial conditions or in the wild. Here, we report on the development of a transcriptomic platform for global gene expression profiling in the Manila clam. RESULTS A normalized cDNA library representing a mixture of adult tissues was sequenced using a ultra high-throughput sequencing technology (Roche 454). A database consisting of 32,606 unique transcripts was constructed, 9,747 (30%) of which could be annotated by similarity. An oligo-DNA microarray platform was designed and applied to profile gene expression of digestive gland and gills. Functional annotation of differentially expressed genes between different tissues was performed by enrichment analysis. Expression of Natural Antisense Transcripts (NAT) analysis was also performed and bi-directional transcription appears a common phenomenon in the R. philippinarum transcriptome. A preliminary study on clam samples collected in a highly polluted area of the Venice Lagoon demonstrated the applicability of genomic tools to environmental monitoring. CONCLUSIONS The transcriptomic platform developed for the Manila clam confirmed the high level of reproducibility of current microarray technology. Next-generation sequencing provided a good representation of the clam transcriptome. Despite the known limitations in transcript annotation and sequence coverage for non model species, sufficient information was obtained to identify a large set of genes potentially involved in cellular response to environmental stress.
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Affiliation(s)
- Massimo Milan
- Department of Public Health, Comparative Pathology, and Veterinary Hygiene, Faculty of Veterinary Medicine, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy.
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Micheletti C, Gottardo S, Critto A, Chiarato S, Marcomini A. Environmental quality of transitional waters: the lagoon of Venice case study. ENVIRONMENT INTERNATIONAL 2011; 37:31-41. [PMID: 20934753 DOI: 10.1016/j.envint.2010.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 06/21/2010] [Accepted: 06/23/2010] [Indexed: 05/30/2023]
Abstract
The health status of European aquatic environments, including transitional waters such as coastal lagoons, is regulated by the Water Framework Directive (WFD), which requires the classification of the water bodies' environmental quality and the achievement of a good ecological status by 2015. In the Venice lagoon, a transitional water body located in the northeastern part of Italy, the achievement of a good ecological status is hampered by several anthropogenic and natural pressures, such as sediment and water chemical contamination, and sediment erosion. In order to evaluate the lagoon's environmental quality according to the WFD (i.e. 5 quality classes, from High to Bad), an integrated Weight-of-Evidence methodology was developed and applied to classify the quality of the lagoon water bodies, integrating biological, physico-chemical, chemical, ecotoxicological, and hydromorphological data (i.e. Lines of Evidence, LOE). The quality assessment was carried out in two lagoon habitat typologies (previously defined on the basis of morphological, sediment, and hydrodynamic characteristics) which were selected taking into account the ecological gradient from sea to land, and the differences in anthropogenic pressure and contamination levels. The LOE classification was carried out by using indicators scored by comparing site specific conditions to reference conditions measured in lagoon reference sites, or provided by local, national or European regulations (e.g. Environmental Quality Standards, EQS, for chemicals). Finally, the overall quality status for each water body was calculated by a probabilistic approach, i.e. by reporting the final result as the frequency distribution of quality classes. The developed procedure was applied by using data and information concerning selected LOE and collected from monitoring programs and research studies carried out in the last 15 years in the lagoon of Venice. A set of sampling stations characterized by spatially and temporally coherent information for each LOE was selected, and among these stations, potential reference sites for each water body typology were identified. The quality assessment highlighted that there are specific lagoon areas, especially those located near the industrially developed area, which are highly affected by anthropogenic activities, and that chemical contamination is one of the main pressures affecting ecological status (e.g. macro-benthonic biodiversity) in the Venice lagoon. The integrated quality assessment procedure that was developed provided a new tool supporting decision making, as well as lagoon assessment and management.
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Affiliation(s)
- C Micheletti
- University Ca' Foscari of Venice, Department of Environmental Sciences, Calle Larga S. Marta 2137, 30123 Venice, Italy
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Sommerfreund JK, Gandhi N, Diamond ML, Mugnai C, Frignani M, Capodaglio G, Gerino M, Bellucci LG, Giuliani S. Contaminant fate and transport in the Venice Lagoon: results from a multi-segment multimedia model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2010; 73:222-230. [PMID: 20036006 DOI: 10.1016/j.ecoenv.2009.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Revised: 11/11/2009] [Accepted: 11/17/2009] [Indexed: 05/28/2023]
Abstract
Contaminant loadings to the Venice Lagoon peaked from 1950s-1980s and although they have since declined, contaminant concentrations remain elevated in sediment and seafood. In order to identify the relative importance of contaminant sources, inter-media exchange and removal pathways, a modified 10-segment fugacity/aquivalence-based model was developed for octachlorodibenzodioxin/furan (OCDD/F), PCB-180, Pb and Cu in the Venice Lagoon. Results showed that in-place pollution nearby the industrial area, current industrial discharges, and tributary loadings were the main sources of contaminants to the lagoon, with negligible contributions from the atmosphere. The fate of these contaminants was governed by sediment-water exchange with simultaneous advective transport by water circulation. Contaminants circulated amongst the northern and central basins with a small fraction reaching the far southern basin and the Chioggia inlet. As a consequence, we estimated limited contaminant transfer to the Adriatic Sea, trapping the majority of contaminants in the sediment in this "average" circulation scenario which does not account for periodic flooding events.
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Affiliation(s)
- J K Sommerfreund
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, ON, Canada
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Locatello L, Matozzo V, Marin MG. Biomarker responses in the crab Carcinus aestuarii to assess environmental pollution in the Lagoon of Venice (Italy). ECOTOXICOLOGY (LONDON, ENGLAND) 2009; 18:869-877. [PMID: 19499335 DOI: 10.1007/s10646-009-0330-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 05/15/2009] [Indexed: 05/27/2023]
Abstract
In the present study, three biomarkers, acetylcholinesterase (AChE) activity, vitellogenin (Vg)-like proteins, and ethoxyresorufin O-deethylase (EROD) activity, were evaluated in male Carcinus aestuarii crabs collected from four sites in the Lagoon of Venice, two in the northern lagoon area and two in the southern one. Results revealed differences among sites in relation to each specific biomarker. Hence, a suite of biomarkers can be used to discriminate sampling sites according to types of pollution, reflecting differing conditions of anthropogenic impact. Comparisons between the northern and southern lagoon areas suggest that the latter are in better condition for Vg-like protein level and AChE activity. The lower EROD activity recorded in crabs from the northern sites suggests a detrimental inhibitory effect of contaminants, rather than a lack of induction due to lower pollution levels.
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Affiliation(s)
- Lisa Locatello
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131, Padova, Italy.
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Otte JC, Andersson C, Abrahamson A, Olsman H, Keiter S, Engwall M, Hollert H, Brunström B. A bioassay approach to determine the dioxin-like activity in sediment extracts from the Danube River: ethoxyresorufin-O-deethylase induction in gill filaments and liver of three-spined sticklebacks (Gasterosteus aculeatus L.). ENVIRONMENT INTERNATIONAL 2008; 34:1176-1184. [PMID: 18571727 DOI: 10.1016/j.envint.2008.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2008] [Revised: 04/10/2008] [Accepted: 05/14/2008] [Indexed: 05/26/2023]
Abstract
Sediment samples from the upper Danube River in Germany have previously been characterized as ecotoxicologically hazardous and contaminants in these sediments may contribute to the observed decline of fish populations in this river section. For the investigation of sediment toxicity there is a need for development, standardization and implementation of in vivo test systems using vertebrates. Therefore, the main objective of this study was to apply and evaluate a recently established fish gill EROD assay as a biomarker in sediment toxicity assessment by using extracts of well characterised sediment samples from the upper Danube River. This to our knowledge is the first application of this novel assay to sediment extracts. Sediments from four different sites along the upper Danube River were Soxhlet-extracted with acetone and dissolved in DMSO. Three-spined sticklebacks (Gasterosteus aculeatus L.) were exposed for 48 h to various concentrations of the extracts, to the positive control beta-naphthoflavone or to the solvent. Measurements of EROD activity in gill filaments and liver microsomes followed the exposure. Concentration-dependent induction of EROD in both gill and liver was found for all sediment extracts. The highest EROD-inducing potency was determined for extracts of sediments from the sites "Opfinger See" and "Sigmaringen" and the EROD activities in gill and liver correlated well. The results from the gill and liver assays were in accordance with in vitro results of previous investigations. The EROD activities measured in the present study corresponded with the concentrations of PAHs, PCBs and PCDD/Fs in the sediment samples derived in a previous study. The sticklebacks in this study were in the reproductive phase and a stronger EROD induction was obtained in the females than in the males. Implementation of the EROD assay in testing of sediment extracts gave highly reliable results which make this assay an ecotoxicologically relevant method for assessment of contamination with Ah receptor agonists in sediments.
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Affiliation(s)
- Jens C Otte
- Department of Environmental Toxicology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden.
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Munschy C, Guiot N, Héas-Moisan K, Tixier C, Tronczyński J. Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in marine mussels from French coasts: levels, patterns and temporal trends from 1981 to 2005. CHEMOSPHERE 2008; 73:945-953. [PMID: 18701131 DOI: 10.1016/j.chemosphere.2008.06.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Revised: 06/12/2008] [Accepted: 06/24/2008] [Indexed: 05/26/2023]
Abstract
The levels and temporal trends of toxic polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were determined in archived marine mussels collected between 1981 and 2005 from selected sites along French coasts. The geographical distribution and levels of PCDD/Fs generally reflect regional inputs of these contaminants: the highest concentrations were determined in samples from the Seine river estuary (English Channel) and Toulon area (Mediterranean coast); the lowest levels were determined in Corsica (Mediterranean Sea). PCDD/F isomeric composition showed a fairly homogeneous distribution pattern throughout the various sampling sites. This pattern, dominated by 2,3,7,8-TCDF and OCDD, can be considered as typical for the study species. However, on a more local scale, some differences in isomeric composition in mussels were identified in relation to local source characteristics. The time trend study showed a pronounced decrease in PCDD/F concentrations over the 24-year period at most sites, except Toulon on the Mediterranean Sea, where the decrease was not significant. This overall decrease probably reflects the general drop in PCDD/F emissions in Europe since 1980. However, high concentrations were determined in mussels collected in recent years (1999, 2001 and 2005) from the mouth of the Seine river. These concentrations are related to particular hydrological conditions, and intensive sediment dredging due to a new port construction at the mouth of the estuary. The results presented in this paper provide reference data on the contamination of shellfish by persistent organic pollutants in the marine environment.
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Affiliation(s)
- C Munschy
- IFREMER, Laboratoire de Biogéochimie des Contaminants Organiques, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France.
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Dueri S, Castro-Jiménez J, Comenges JMZ. On the use of the partitioning approach to derive Environmental Quality Standards (EQS) for persistent organic pollutants (POPs) in sediments: a review of existing data. THE SCIENCE OF THE TOTAL ENVIRONMENT 2008; 403:23-33. [PMID: 18572224 DOI: 10.1016/j.scitotenv.2008.05.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Accepted: 05/15/2008] [Indexed: 05/26/2023]
Abstract
A review of experimental data has been performed to study the relationships between the concentration in water, pore water and sediments for different families of organic contaminants. The objective was to determine whether it is possible to set EQS for sediments from EQS defined for surface waters in the Daughter Directive of the European Parliament (COM (2006) 397). The analysis of experimental data showed that even though in some specific cases there is a coupling between water column and sediments, this coupling is rather the exception. Therefore it is not recommendable to use water column data to assess the chemical quality status of sediments and it is necessary to measure in both media. At the moment EQS have been defined for the water column and will assess only the compliance with good chemical status of surface waters. Since the sediment toxicity depends on the dissolved pore water concentration, the EQS developed for water could be applied to pore water (interstitial water); hence, there would be no need of developing another set of EQS. The partitioning approach has been proposed as a solution to calculate sediment EQS from water EQS, but the partitioning coefficient strongly depends on sediment characteristics and its use introduces an important uncertainty in the definition of sediment EQS. Therefore, the direct measurement of pore water concentration is regarded as a better option.
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Affiliation(s)
- Sibylle Dueri
- European Commission, Joint Research Centre, Institute for Environment and Sustainability, Ispra VA, Italy
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Singh PB, Singh V, Nayak P. Pesticide residues and reproductive dysfunction in different vertebrates from north India. Food Chem Toxicol 2008; 46:2533-9. [DOI: 10.1016/j.fct.2008.04.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2007] [Revised: 01/05/2008] [Accepted: 04/08/2008] [Indexed: 10/22/2022]
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Weber R, Gaus C, Tysklind M, Johnston P, Forter M, Hollert H, Heinisch E, Holoubek I, Lloyd-Smith M, Masunaga S, Moccarelli P, Santillo D, Seike N, Symons R, Torres JPM, Verta M, Varbelow G, Vijgen J, Watson A, Costner P, Woelz J, Wycisk P, Zennegg M. Dioxin- and POP-contaminated sites--contemporary and future relevance and challenges: overview on background, aims and scope of the series. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2008; 15:363-93. [PMID: 18597132 DOI: 10.1007/s11356-008-0024-1] [Citation(s) in RCA: 237] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Accepted: 06/10/2008] [Indexed: 05/05/2023]
Abstract
BACKGROUND, AIM AND SCOPE Once they have been generated, polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) and other persistent organic pollutants (POPs) can persist in soils and sediments and in waste repositories for periods extending from decades to centuries. In 1994, the US EPA concluded that contaminated sites and other reservoirs are likely to become the major source of contemporary pollution problems with these substances. With this in mind, this article is the first in a new series in ESPR under the title 'Case Studies on Dioxin and POP Contaminated Sites--Contemporary and Future Relevance and Challenges', which will address this important issue. The series will document various experiences from sites contaminated with PCDD/F and other POPs. This article provides an overview of the content of the articles comprising the series. In addition, it provides a review of the subject in its own right and identifies the key issues arising from dioxin/POP-contaminated sites. Additionally, it highlights the important conclusions that can be drawn from these examples. The key aim of this article and of the series as a whole is to provide a comprehensive overview of the types of PCDD/F contaminated sites that exist as a result of historical activities. It details the various processes whereby these sites became contaminated and attempts to evaluate their contemporary relevance as sources of PCDD/Fs and other POPs. It also details the various strategies used to assess these historical legacies of contamination and the concepts developed, or which are under development, to effect their remediation. MAIN FEATURES Special sessions on 'Contaminated sites--Cases, remediation, risk and policy' were held at the DIOXIN conferences in 2006 and 2007, and this theme will be continued at DIOXIN 2008 to be held in Birmingham. Selected cases from the approximately 70 contributions made to these sessions, together with some additional invited case studies are outlined together with the key issues they raise. By evaluating these cases and adding details of experiences published in the current literature, an overview will be given of the different features and challenges of dioxin and POP-contaminated sites. RESULTS This article provides a systematic categorisation of types of PCDD/F and POP-contaminated sites. These are categorised according to the chemical or manufacturing process, which generated the PCDD/Fs or POPs and also includes the use and disposal aspects of the product life cycle in question. The highest historical PCDD/F and dioxin-like polychlorinated biphenyl (PCB) contamination burdens have arisen as a result of the production of chlorine and of chlorinated organic chemicals. In particular, the production of chlorinated pesticides, PCBs and the related contaminated waste streams are identified being responsible for historical releases of toxic equivalents (TEQs) at a scale of many tonnes. Along with such releases, major PCDD/F contaminated sites have been created through the application or improper disposal of contaminated pesticides, PCBs and other organochlorine chemicals, as well through the recycling of wastes and their attempted destruction. In some extreme examples, PCDD/F contaminated sites have also resulted from thermal processes such as waste incinerators, secondary metal industries or from the recycling or deposition of specific waste (e.g. electronic waste or car shredder wastes), which often contain chlorinated or brominated organic chemicals. The examples of PCDD/F and dioxin-like PCB contamination of fish in European rivers or the impact of contaminated sites upon fishing grounds and upon other food resources demonstrate the relevance of these historical problems to current and future human generations. Many of the recent food contamination problems that have emerged in Europe and elsewhere demonstrate how PCDD/F and dioxin like PCBs from historical sources can directly contaminate human and animal feedstuffs and indeed highlight their considerable contemporary relevance in this respect. Accordingly, some key experiences and lessons learnt regarding the production, use, disposal and remediation of POPs from the contaminated sites are summarised. DISCUSSION An important criterion for evaluating the significance and risks of PCDD/Fs and other POPs at contaminated sites is their present or future potential for mobility. This, in turn, determines to a large degree their propensity for off-site transport and environmental accessibility. The detailed evaluation of contaminated site cases reveals different site-specific factors, which influence the varied pathways through which poor water-soluble POPs can be mobilised. Co-contaminants with greater water solubility are also typically present at such sites. Hence, pumping of groundwater (pump and treat) is often required in addition to attempting to physically secure a site. At an increasing number of contaminated sites, securing measures are failing after relatively short time spans compared to the time horizon, which applies to persistent organic pollutant contamination. Due to the immense costs and challenges associated with remediation of contaminated sites 'monitored natural attenuation' is increasingly gaining purchase as a conceptual remediation approach. However, these concepts may well prove limited in their practical application to contaminated sites containing persistent organic pollutants and other key pollutants like heavy metals. CONCLUSIONS It is inevitable, therefore, that dioxin/POP-contaminated sites will remain of contemporary and future relevance. They will continue to represent an environmental issue for future generations to address. The securing and/or remediation of dioxin/POP-contaminated sites is very costly, generally in the order of tens or hundreds of millions of dollars. Secured landfills and secured production sites need to be considered as constructions not made for 'eternity' but built for a finite time scale. Accordingly, they will need to be controlled, supervised and potentially repaired/renewed. Furthermore, the leachates and groundwater impacted by these sites will require ongoing monitoring and potential further remediation. These activities result in high maintenance costs, which are accrued for decades or centuries and should, therefore, be compared to the fully sustainable option of complete remediation. The contaminated site case studies highlight that, while extensive policies and established funds for remediation exist in most of the industrialised western countries, even these relatively well-regulated and wealthy countries face significant challenges in the implementation of a remediation strategy. This highlights the fact that ultimately only the prevention of contaminated sites represents a sustainable solution for the future and that the Polluter Pays Principle needs to be applied in a comprehensive way to current problems and those which may emerge in the future. RECOMMENDATIONS AND PERSPECTIVES With the continuing shift of industrial activities in developing and transition economies, which often have poor regulation (and weak self-regulation of industries), additional global challenges regarding POPs and other contaminated sites may be expected. In this respect, a comprehensive application of the "polluter pays principle" in these countries will also be a key to facilitate the clean-up of contaminated areas and the prevention of future contaminated sites. The threats and challenges of contaminated sites and the high costs of securing/remediating the problems highlight the need for a comprehensive approach based upon integrated pollution prevention and control. If applied to all polluting (and potentially polluting) industrial sectors around the globe, such an approach will prove to be both the cheapest and most sustainable way to underpin the development of industries in developing and transition economies.
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Affiliation(s)
- Roland Weber
- POPs Environmental Consulting, Ulmenstrasse 3, 73035 Göppingen, Germany.
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Ricciardi F, Matozzo V, Marin MG. Effects of 4-nonylphenol exposure in mussels (Mytilus galloprovincialis) and crabs (Carcinus aestuarii) with particular emphasis on vitellogenin induction. MARINE POLLUTION BULLETIN 2008; 57:365-372. [PMID: 18396299 DOI: 10.1016/j.marpolbul.2008.02.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Accepted: 02/13/2008] [Indexed: 05/26/2023]
Abstract
Since it is often difficult to estimate possible adverse effects due to contamination in selected ecosystems, multi-species biomonitoring may provide more information, taking into account different routes of exposure, ecological roles and metabolic capabilities of animals. In this context, we exposed for 7 days the mussel Mytilus galloprovincialis and the crab Carcinus aestuarii to 4-nonylphenol (NP), a well-known xenoestrogen. In mussels (0-0.2 mg NP l(-1)), we measured NP bioaccumulation in soft tissues and vitellogenin (Vg)-like protein levels in digestive glands from both males and females by the alkali-labile phosphate assay (ALP). As no reference data were available for crab exposure, the NP 96-h LC(50) value was previously determined. Then, in sublethally exposed (0-1.0 mg NP l(-1)) male crabs, NP bioaccumulation and Vg levels were measured in hemolymph, gonads and digestive gland. Bioaccumulation of NP increased from 43 to 371 microg g(-1) d.w. in mussels, and from 3.6 to 37 microg g(-1) d.w. in crabs, depending on the NP concentration in water. Dose-dependent Vg-like protein induction was observed in both species, appearing to be related to NP bioaccumulation, although a partial decrease was recorded at the highest concentration tested. A similar trend was observed in both digestive gland and gonad of exposed crabs; Vg increased to a lesser extent, although significantly, in hemolymph. Results demonstrated that NP induces Vg synthesis both in male and female mussels, as well as in male crabs. On the basis of the responsiveness of both species investigated, a multi-species approach is indicated in biomonitoring programmes.
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Affiliation(s)
- Francesco Ricciardi
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131 Padova, Italy.
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