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Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa

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dc.contributor.author Williams, CR
dc.contributor.author Leaner, JL
dc.contributor.author Nel, JM
dc.contributor.author Somerset, VS
dc.date.accessioned 2010-09-13T14:22:24Z
dc.date.available 2010-09-13T14:22:24Z
dc.date.issued 2010-09
dc.identifier.citation Williams, CR, Leaner, JL, Nel, JM and Somerset, VS. 2010. Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa. Journal of Environmental Science and Health, Part A, Vol. 45(11), pp 1363 - 1373 en
dc.identifier.issn 1093-4529
dc.identifier.uri http://hdl.handle.net/10204/4356
dc.description Copyright: 2010 Taylor & Francis. This is the author's version of the work. The definitive is published in the Journal of Environmental Science and Health, Part A, Vol. 45(11), pp 1363 - 1373 en
dc.description.abstract Total mercury (TotHg) and methylmercury (MeHg) concentrations were determined in various environmental compartments collected from water resources of three Water Management Areas (WMAs) - viz. Olifants, Upper Vaal and Inkomati WMAs, potentially impacted by major anthropogenic mercury (Hg) sources (i.e coal-fired power stations and artisanal gold mining activities). Aqueous TotHg concentrations were found to be elevated above the global average (5.0 ng/L) in 38% of all aqueous samples, while aqueous MeHg concentrations ranged from below the detection limit (0.02 ng/L) to 2.73 ± 0.10 ng/L. Total Hg concentrations in surface sediment (0-4 cm) ranged from 0.75 ± 0.01 to 358.23 ± 76.83 ng/g wet weight (ww). Methylmercury accounted for, on average, 24% of TotHg concentrations in sediment. Methylmercury concentrations were not correlated with TotHg concentrations or organic content in sediment. The concentration of MeHg in invertebrates and fish were highest in the Inkomati WMA and, furthermore, measured just below the US EPA guideline for MeHg in fish en
dc.language.iso en en
dc.publisher Taylor & Francis en
dc.subject Mercury en
dc.subject Methylmercury en
dc.subject Coal fired power stations en
dc.subject Sediments en
dc.subject Invertebrates en
dc.subject Water management areas en
dc.subject Inkomati WMAs en
dc.title Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa en
dc.type Article en
dc.identifier.apacitation Williams, C., Leaner, J., Nel, J., & Somerset, V. (2010). Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa. http://hdl.handle.net/10204/4356 en_ZA
dc.identifier.chicagocitation Williams, CR, JL Leaner, JM Nel, and VS Somerset "Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa." (2010) http://hdl.handle.net/10204/4356 en_ZA
dc.identifier.vancouvercitation Williams C, Leaner J, Nel J, Somerset V. Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa. 2010; http://hdl.handle.net/10204/4356. en_ZA
dc.identifier.ris TY - Article AU - Williams, CR AU - Leaner, JL AU - Nel, JM AU - Somerset, VS AB - Total mercury (TotHg) and methylmercury (MeHg) concentrations were determined in various environmental compartments collected from water resources of three Water Management Areas (WMAs) - viz. Olifants, Upper Vaal and Inkomati WMAs, potentially impacted by major anthropogenic mercury (Hg) sources (i.e coal-fired power stations and artisanal gold mining activities). Aqueous TotHg concentrations were found to be elevated above the global average (5.0 ng/L) in 38% of all aqueous samples, while aqueous MeHg concentrations ranged from below the detection limit (0.02 ng/L) to 2.73 ± 0.10 ng/L. Total Hg concentrations in surface sediment (0-4 cm) ranged from 0.75 ± 0.01 to 358.23 ± 76.83 ng/g wet weight (ww). Methylmercury accounted for, on average, 24% of TotHg concentrations in sediment. Methylmercury concentrations were not correlated with TotHg concentrations or organic content in sediment. The concentration of MeHg in invertebrates and fish were highest in the Inkomati WMA and, furthermore, measured just below the US EPA guideline for MeHg in fish DA - 2010-09 DB - ResearchSpace DP - CSIR KW - Mercury KW - Methylmercury KW - Coal fired power stations KW - Sediments KW - Invertebrates KW - Water management areas KW - Inkomati WMAs LK - https://researchspace.csir.co.za PY - 2010 SM - 1093-4529 T1 - Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa TI - Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa UR - http://hdl.handle.net/10204/4356 ER - en_ZA


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