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Zábojníková L. Seasonal and age-dependent differences in mercury concentrations in Apodemus sp. in the north-western region of Slovakia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:10521-10532. [PMID: 38200190 PMCID: PMC10850257 DOI: 10.1007/s11356-023-31802-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
Pollution of ecosystems by heavy metals such as mercury is currently a great concern. Mercury (Hg) can be released into the environment anthropogenically, but it is also naturally present in small quantities in all environmental compartments. Many different factors contribute to different rates of Hg deposition in animal bodies. The aim of this work is to describe how Hg concentrations in the bodies of small rodents change throughout the season at a site where massive anthropogenic pollution is not expected. Mice of the genus Apodemus were sampled during the whole year. Samples of blood, hair, liver, kidney, and brain were analyzed. Total Hg concentrations were measured by DMA-80. The mean Hg concentrations in examined organs were in the order hairs > kidney > liver > blood > brain, and their values decreased from 0.0500 to 0.0046 mg kg-1 dry weight. Males and females did not differ in contamination levels, but age-dependent differences in Hg concentrations were found. It was also identified how Hg concentrations in different organs correlate with each other. Different levels of seasonal variability were detected in Hg concentrations in blood, hair, and kidney.
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Affiliation(s)
- Lenka Zábojníková
- Institute of High Mountain Biology, University of Žilina, Tatranská Javorina 7, 059 56, Tatranská Javorina, Slovakia.
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Qin F, Amyot M, Bertolo A. The relationship between zooplankton vertical distribution and the concentration of aqueous Hg in boreal lakes: A comparative field study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159793. [PMID: 36374726 DOI: 10.1016/j.scitotenv.2022.159793] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
The production of the highly toxic monomethylmercury (MeHg) is heterogenous throughout the water column. Multiple factors have been identified to significantly affect this process, such as an extended anoxic water layer and a deep-water phytoplankton maximum. However, the role of water column heterogeneity on mercury (Hg) cycling is still poorly known, especially concerning the role of zooplankton grazers. Here, four boreal lakes with contrasting characteristics were sampled (i.e., transparency and the presence/absence of fish) at both day and night in order to maximize the heterogeneity in zooplankton abundance both among and within lakes, and to investigate their potential links with Hg vertical heterogeneity. Diel variation of the concentrations of both dissolved total Hg (DTHg) and total Hg (THg) were observed, with night samples significantly higher than day samples. Although this pattern was not related to diel changes in the vertical distribution of zooplankton, results showed that the presence of large copepods (>1.2 mm) and medium-sized (0.6 to 1.2 mm) cladocerans was significantly associated with lower concentrations of DTHg in the water at a given depth, whereas the presence of medium-sized copepods was significantly associated with the concentration of THg. The presence of cladocerans was significantly associated with the ratio between the dissolved MeHg and DTHg (conventionally used as a proxy of methylation potential). Phytoplankton biomass was directly correlated with the concentration of both dissolved and total MeHg and the methylation potential. At the same time, phytoplankton biomass was inversely related to the fraction of DTHg. These results suggest a potential key role of the heterogeneity of biotic factors in the water column, especially of phytoplankton and zooplankton, in the cycling of total Hg and MeHg in boreal lakes.
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Affiliation(s)
- Fan Qin
- Centre de recherche sur les interactions bassins versants-écosystèmes aquatiques (RIVE) et Département des sciences de l'environnement, Université du Québec à Trois-Rivières, 3351 Boul. des Forges, C.P. 500, Trois-Rivières, QC G8Z 4M3, Canada; Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Campus MIL, C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada.
| | - Marc Amyot
- Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Campus MIL, C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada; Département de sciences biologiques (GRIL), Université de Montréal, Campus MIL, C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada
| | - Andrea Bertolo
- Centre de recherche sur les interactions bassins versants-écosystèmes aquatiques (RIVE) et Département des sciences de l'environnement, Université du Québec à Trois-Rivières, 3351 Boul. des Forges, C.P. 500, Trois-Rivières, QC G8Z 4M3, Canada; Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, Campus MIL, C.P. 6128, Succ. Centre-ville, Montréal, QC H3C 3J7, Canada
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Chen Y, Cheng X, Mo F, Huang L, Wu Z, Wu Y, Xu L, Fu F. Ultra-sensitive speciation analysis of mercury by CE-ICP-MS together with field-amplified sample stacking injection and dispersive solid-phase extraction. Electrophoresis 2015; 37:1055-62. [DOI: 10.1002/elps.201500460] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/03/2015] [Accepted: 12/03/2015] [Indexed: 11/08/2022]
Affiliation(s)
- YiQuan Chen
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
| | - Xian Cheng
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
| | - Fan Mo
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
| | - LiMei Huang
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
| | - Zujian Wu
- Department of Plant Protection; Fujian Agriculture and Forest University; Fuzhou Fujian P. R. China
| | - Yongning Wu
- China National Center for Food Safety Risk Assessment; Beijing P. R. China
| | - LiangJun Xu
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
| | - FengFu Fu
- Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Lab of Analysis and Detection for Food Safety; College of Chemistry, Fuzhou University; Fuzhou Fujian P. R. China
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Zhao Y, Zheng J, Fang L, Lin Q, Wu Y, Xue Z, Fu F. Speciation analysis of mercury in natural water and fish samples by using capillary electrophoresis–inductively coupled plasma mass spectrometry. Talanta 2012; 89:280-5. [DOI: 10.1016/j.talanta.2011.12.029] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 12/13/2011] [Accepted: 12/13/2011] [Indexed: 11/29/2022]
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Jung JH, Lee JH, Shinkai S. Functionalized magnetic nanoparticles as chemosensors and adsorbents for toxic metal ions in environmental and biological fields. Chem Soc Rev 2011; 40:4464-74. [PMID: 21607241 DOI: 10.1039/c1cs15051k] [Citation(s) in RCA: 235] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jong Hwa Jung
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 660-701, Korea.
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Han ZX, Zhang XB, Li Z, Mao GJ, Jin Z, Shen GL, Yu RQ, Wu XY. A Highly Sensitive Quinoline-Containing Rhodamine B Thiohydrazide Based Fluorescent Probe for Hg2+in Aqueous Solution and Living Cells. ANAL LETT 2010. [DOI: 10.1080/00032711003763582] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Leopold K, Foulkes M, Worsfold P. Methods for the determination and speciation of mercury in natural waters--a review. Anal Chim Acta 2010; 663:127-38. [PMID: 20206001 DOI: 10.1016/j.aca.2010.01.048] [Citation(s) in RCA: 292] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2009] [Revised: 01/18/2010] [Accepted: 01/20/2010] [Indexed: 10/19/2022]
Abstract
This review summarises current knowledge on Hg species and their distribution in the hydrosphere and gives typical concentration ranges in open ocean, coastal and estuarine waters, as well as in rivers, lakes, rain and ground waters. The importance of reliable methods for the determination of Hg species in natural waters and the analytical challenges associated with them are discussed. Approaches for sample collection and storage, pre-concentration, separation, and detection are critically compared. The review covers well established methods for total mercury determination and identifies new approaches that offer advantages such as ease of use and reduced risk of contamination. Pre-concentration and separation techniques for Hg speciation are divided into chromatographic and non-chromatographic methods. Derivatisation methods and the coupling of pre-concentration and/or separation methods to suitable detection techniques are also discussed. Techniques for sample pre-treatment, pre-concentration, separation, and quantification of Hg species, together with examples of total Hg determination and Hg speciation analysis in different natural (non-spiked) waters are summarised in tables, with a focus on applications from the last decade.
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Affiliation(s)
- Kerstin Leopold
- Analytical Chemistry Group, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany.
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Bulgariu L, Ratoi M, Bulgariu D, Macoveanu M. Adsorption potential of mercury(II) from aqueous solutions onto Romanian peat moss. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2009; 44:700-706. [PMID: 19412852 DOI: 10.1080/10934520902847836] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study was undertaken to evaluate the adsorption potential of Romanian peat moss for the removal of mercury(II) from aqueous solutions. The batch system experiments carried out showed that this natural material was effective in removing mercury(II). The analysis of FT-IR spectra indicated that the mechanism involved in the adsorption can be mainly attributed to the binding of mercury(II) with the carboxylic groups of Romanian peat moss. Adsorption equilibrium approached within 60 min. The adsorption data fitted well the Langmuir isotherm model. The maximum adsorption capacity (qmax) was 98.94 mg g(-1). Pseudo-second-order kinetic model was applicable to the adsorption data. The thermodynamic parameters indicate that the adsorption process was spontaneous as the Gibbs free energy values were found to be negative (between -17.58 and -27.25 kJ mol(-1)) at the temperature range of 6-54 degrees C.
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Affiliation(s)
- Laura Bulgariu
- Department of Environmental Engineering and Management, Technical University Gheorghe Asachi of Iasi, Iasi, Romania.
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Michalke B, Halbach S, Nischwitz V. JEM spotlight: metal speciation related to neurotoxicity in humans. ACTA ACUST UNITED AC 2009; 11:939-54. [PMID: 19436852 DOI: 10.1039/b817817h] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Improved living conditions have led to a steady increase in the life expectancy of humans in most countries. However, this is accompanied by an increased probability of suffering from neurodegenerative diseases like Alzheimer's disease or Parkinson's disease. Unfortunately, the therapeutic possibilities for curing these diseases are very limited up to now. Many studies indicate that a variety of environmental factors contribute to the initiation and promotion of neurodegenerative diseases. For example, the role of metal exposure and disturbance of metal homeostasis in the brain is discussed in this respect. However, most studies focus on the neurological and toxicological aspects but not on a detailed characterisation of the species of the involved metals. Therefore, this review summarizes the neurotoxic effects of selected metals on humans and focuses on contributions from trace element speciation analysis with relevance to neuroscientific research. In spite of the advance in instrumentation and methodology of speciation analysis there are few applications for matrices like cerebrospinal fluid which is due to limited access to these samples and analytical challenges caused by matrix interferences, low concentrations and limited stability of many trace element species of interest. The most relevant neurotoxic metals aluminium, lead, manganese and mercury are reviewed in detail while further metals like cadmium, arsenic, bismuth and tin are briefly discussed. Current results indicate that knowledge on trace element speciation can contribute to a better understanding of the transport of metals across the neural barriers and potentially of their role in diseased human brains.
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Affiliation(s)
- Bernhard Michalke
- Helmholtz Zentrum München, Institute of Ecological Chemistry, 85764, Neuherberg, Germany.
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Santra M, Ryu D, Chatterjee A, Ko SK, Shin I, Ahn KH. A chemodosimeter approach to fluorescent sensing and imaging of inorganic and methylmercury species. Chem Commun (Camb) 2009:2115-7. [DOI: 10.1039/b900380k] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Balshaw S, Edwards J, Daughtry B, Ross K. Mercury in seafood: mechanisms of accumulation and consequences for consumer health. REVIEWS ON ENVIRONMENTAL HEALTH 2007; 22:91-113. [PMID: 17894202 DOI: 10.1515/reveh.2007.22.2.91] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Mercury is a largely uncontrollable heavy metal contaminant in that it is globally ubiquitous, and environmentally persistent. The element has the potential for global mobilization following liberation from environmental stores, which can occur as a consequence of either anthropogenic activities or natural processes. Furthermore, organic forms like methylmercury accumulate in biological tissues with an exceptionally long biological half-life, facilitating the magnification of this toxin along trophic food chains. Bioaccumulation is particularly evident in aquatic environments, in which long-lived piscivorous fishes and marine mammals are reported with a mercury burden one-million times that of the surrounding water body, typically attaining mercury burdens exceeding 1 microg g(-1). Mercury levels in other seafood, however, are typically reported in the range of 0.1 to 0.2 microg g(-1) and usually less then 0.5 microg g(-1). The primary source of human exposure to environmental mercury is through seafood consumption. The dangers associated with the consumption of large amounts of methylmercury accumulated in seafood are well recognized from past poisoning incidents, in which fish with mercury burdens in the range of 9 to 24 microg g(-1) were consumed. Nevertheless, the toxicological consequence of chronic low-level mercury exposure from habitual seafood consumption is an area of contention. This review discusses the mechanisms of mercury accumulation and distribution in fish tissues and the toxicological consequences of mercury exposure from seafood consumption with regard to international safety guidelines.
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Affiliation(s)
- S Balshaw
- Department of Environmental Health, School of Medicine, Flinders University GPO Box 2100 Adelaide, South Australia 5001.
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