Williams, CRLeaner, JLNel, JMSomerset, VS2010-09-132010-09-132010-09Williams, 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 - 13731093-4529http://hdl.handle.net/10204/4356Copyright: 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 - 1373Total 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 fishenMercuryMethylmercuryCoal fired power stationsSedimentsInvertebratesWater management areasInkomati WMAsArticleWilliams, 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/10204/4356Williams, 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/10204/4356Williams 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.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 -