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Bravo AG, Loizeau JL, Bouchet S, Richard A, Rubin JF, Ungureanu VG, Amouroux D, Dominik J. Mercury human exposure through fish consumption in a reservoir contaminated by a chlor-alkali plant: Babeni reservoir (Romania). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2010; 17:1422-1432. [PMID: 20411344 DOI: 10.1007/s11356-010-0328-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Accepted: 03/18/2010] [Indexed: 05/29/2023]
Abstract
PURPOSE Chlor-alkali plants are one of the most important point sources of mercury to aquatic environment. The problem of Hg contamination has been studied in a region, Rm Valcea (Romania), impacted by the wastewater discharge of a chlor-alkali plant. The purpose of the present study is to evaluate the current status of mercury pollution in the Babeni reservoir (Olt River) and the exposure of local population via fish consumption to mercury originating from the chlor-alkali plant. METHODS Sediments were collected from Valcea, Govora and Babeni reservoirs. Grain size distribution, organic content and total mercury (THg) concentrations were analysed in sediments. Fish were purchased from local anglers, and the scalp hair was collected from volunteers. THg in sediment, fish and hair samples was determined using an atomic absorption spectrophotometer for Hg determination. Monomethylmercury (MMHg) was analysed in the muscle and liver tissues by species-specific isotope dilution and capillary gas chromatography hyphenated to inductively coupled plasma mass spectrometer. RESULTS High mercury concentrations were found in the sediments and in fish from Babeni reservoir, with a median of 2.1 mg/kg (IQR = 3.2) in sediments and a mean value of 1.8 +/- 0.8 mg/kg_ww in fish muscle. MMHg concentrations in fish were well above the WHO guidelines for fish consumption. Local population consuming fish from the Babeni reservoir had THg concentrations in hair significantly higher than those consuming fish from upstream reservoirs and/or from the shops and reached a median value of 2.5 mg/kg (IQR = 3.6). CONCLUSIONS The remnant pollution in the fish of this reservoir, and probably many other lakes and reservoirs receiving Hg polluted wastewater, represents a considerable health risk for the local fish consumers.
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Castillo Á, Rodríguez-González P, Centineo G, Roig-Navarro AF, Alonso JIG. Multiple Spiking Species-Specific Isotope Dilution Analysis by Molecular Mass Spectrometry: Simultaneous Determination of Inorganic Mercury and Methylmercury in Fish Tissues. Anal Chem 2010; 82:2773-83. [DOI: 10.1021/ac9027033] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ángel Castillo
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain, Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain, and Innovative Solutions in Chemistry S.L., Edificio Científico-Tecnológico Campus de “El Cristo”, Oviedo, Spain
| | - Pablo Rodríguez-González
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain, Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain, and Innovative Solutions in Chemistry S.L., Edificio Científico-Tecnológico Campus de “El Cristo”, Oviedo, Spain
| | - Giuseppe Centineo
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain, Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain, and Innovative Solutions in Chemistry S.L., Edificio Científico-Tecnológico Campus de “El Cristo”, Oviedo, Spain
| | - Antoni Francesc Roig-Navarro
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain, Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain, and Innovative Solutions in Chemistry S.L., Edificio Científico-Tecnológico Campus de “El Cristo”, Oviedo, Spain
| | - J. Ignacio García Alonso
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain, Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain, and Innovative Solutions in Chemistry S.L., Edificio Científico-Tecnológico Campus de “El Cristo”, Oviedo, Spain
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Ouerdane L, Mester Z, Meija J. General Equation for Multiple Spiking Isotope Dilution Mass Spectrometry. Anal Chem 2009; 81:5075-9. [DOI: 10.1021/ac900205b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Laurent Ouerdane
- Institute for National Measurement Standards, National Research Council Canada 1200 Montreal Rd., Ottawa ON K1A 0R6, Canada
| | - Zoltán Mester
- Institute for National Measurement Standards, National Research Council Canada 1200 Montreal Rd., Ottawa ON K1A 0R6, Canada
| | - Juris Meija
- Institute for National Measurement Standards, National Research Council Canada 1200 Montreal Rd., Ottawa ON K1A 0R6, Canada
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Jackson B, Taylor V, Baker RA, Miller E. Low-level mercury speciation in freshwaters by isotope dilution GC-ICP-MS. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:2463-9. [PMID: 19452902 PMCID: PMC2692077 DOI: 10.1021/es802656p] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Atmospheric deposition of anthropogenic Hg has led to increased Hg concentrations in many ecosystems. Modeling is an effective method for predicting the complex dynamics of Hg transport in watersheds. Such models require accurate concentrations of water column methylmercury, CH3Hg+, for input parameters, yet these concentrations are very difficult to measure precisely because they are so low. We developed a method for aqueous CH3Hg+ quantification in Lake Champlain, VT, where ambient CH3Hg+ concentrations are < 0.04 ng L(-1). The analysis utilized species-specific isotope dilution, purge and trap gas chromatography inductively coupled plasma mass spectrometry and provided instrument detection limits of about 0.3 fM (0.06 pg L(-1)) and method detection limits of 15 fM (0.003 ng L(-1)) for CH3Hg+, which are among the lowest reported. Artifactual methylation of inorganic Hg(2+) was shown to be minor, and the precision of the isotope dilution method was generally <5% relative standard deviation, which is much lower than would have been the case for an external calibration approach. The method is accurate even at low concentrations of 0.025 ng L(-1). This combination of precision, accuracy, and low detection allows for quantification of significant differences in CH3Hg+ concentration between bays and over time within bays of Lake Champlain, where mean CH3Hg+ concentrations differ by only 0.006 ng L(-1) at concentrations as low as 0.014 ng L(-1).
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Affiliation(s)
- Brian Jackson
- Trace Element Analysis Core, Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA.
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Meija J, Ouerdane L, Mester Z. Describing chemical transformations in multiple spiking isotope dilution: fundamental aspects and definitions. Analyst 2009; 134:466-71. [DOI: 10.1039/b814388a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Robust microwave-assisted extraction protocol for determination of total mercury and methylmercury in fish tissues. Anal Chim Acta 2009; 631:121-8. [DOI: 10.1016/j.aca.2008.10.044] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Revised: 10/13/2008] [Accepted: 10/16/2008] [Indexed: 11/24/2022]
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