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Browsing by Subject "Methylmercury"

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Baseline monitoring of mercury levels in environmental matrices in the Limpopo Province

Author: Walters, Chavon R ; Couto, M ; McClurg, N ; Silwana, B ; Somerset, V Date: Feb 2017 Mercury (Hg) speciation and bioavailability were studied in surface water, surface sediment and freshwater fish samples collected upstream and downstream of the Medupi (currently under construction) and Matimba power stations in the Waterberg ... Read more
Evidence of mercury exposure in a particular low-income community in South Africa

Author: Oosthuizen, MA ; John, J ; Somerset, Vernon Date: 01 Sep 2010 South Africa relies mainly on coal for its energy needs. In addition, the country is one of the main producers of gold. Both coal combustion and gold mining are sources of mercury pollution, contributing to South Africa being one of the leading ... Read more
Mercury concentrations at a historically mercury-contaminated site in KwaZulu-Natal, South Africa

Author: Williams, CR ; Leaner, LJ ; Somerset, VS ; Nel, JM Date: Feb 2011 A mercury (Hg) processing plant previously operating in KwaZulu-Natal Province (South Africa) discharged Hg waste into a nearby river system causing widespread contamination since the 1980s. Although the processing plant ceased operation in ... Read more
Mercury concentrations in water resources potentially impacted by coal-fired power stations and artisanal gold mining in Mpumalanga, South Africa

Author: Williams, CR ; Leaner, JL ; Nel, JM ; Somerset, VS Date: Sep 2010 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 ... Read more
Mercury contamination history of an estuarine floodplain reconstructed from a 210Pb-dated sediment core (Berg River, South Africa)

Author: Kading, TJ ; Mason, RP ; Leaner, JJ Date: 2009 Mercury deposition histories have been scarcely documented in the southern hemisphere. A sediment core was collected from the ecologically important estuarine floodplain of the Berg River (South Africa). The authors establish the concentration ... Read more
Review of mercury pollution in South Africa: current status

Author: Walters, Chavon R ; Somerset, VS ; Leaner, JJ ; Nel, JM Date: Aug 2011 The present paper is a review on the status of mercury (Hg) as a pollutant in South African aquatic ecosystems. Spatial patterns of Hg distribution and bioaccumulation in water resources were investigated by collecting and analyzing multimedia ... Read more
A synthesis of mercury research in the Southern Hemisphere, part 2: Anthropogenic perturbations

Author: Fisher, JA ; Schneider, L ; Fostier, A-H ; Guerrero, S ; Guimaraes, JD ; Labuschagne, Casper ; Leaner, JJ ; Martin, Lynwill G ; Mason, RP ; Walters, Chavon R Date: May 2023 Environmental mercury (Hg) contamination is a global concern requiring action at national scales. Scientific understanding and regulatory policies are underpinned by global extrapolation of Northern Hemisphere Hg data, despite historical, ... Read more

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Browsing by Subject "Methylmercury"

Browsing by Subject "Methylmercury"

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