naa a22 4500 510751806 CHVBK 20180411083107.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11270-013-1547-8 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1547-8 An Assessment of Mercury Contamination and the Relationship Between Environmental Variables and Mercury Concentrations in a Seasonal Wetland [Elektronische Daten] [LP de Klerk, AR de Klerk, V Wepener] A study was undertaken to assess the extent of mercury contamination in the water and sediment in a seasonal wetland, as well as to determine the relationship between environmental parameters and the distribution of the mercury contamination. Water and sediment samples were collected and analysed for methylmercury, inorganic mercury and other physical and chemical variables. One-way analysis of variance and homogeneity of variance were performed, and linear regression analysis was used to determine correlations between mercury and other environmental variables. The highest mercury concentrations were recorded at the sites located closest to the industrial complex. Methylmercury concentrations in the water and sediment were mostly higher during the low flow season, while inorganic mercury concentrations in the water and sediment were higher during the high flow and low flow seasons, respectively. Chromium, manganese, organic carbon and fine sediment particles were found to have significantly positive correlations with mercury concentrations in water and sediment. It was also found that the mercury concentrations decreased within a relatively short distance from the sites closer to the industrial complex to the sites further downstream. Springer Science+Business Media Dordrecht, 2013 Environmental variables nationallicence Inorganic mercury nationallicence Mercury nationallicence Methylmercury nationallicence de Klerk LP CSIR, Natural Resources and the Environment, PO Box 395, 0001, Pretoria, South Africa aut de Klerk AR CSIR, Natural Resources and the Environment, PO Box 395, 0001, Pretoria, South Africa aut Wepener V. Water Research Group, Unit for Environmental Science and Management, North-West University, Private Bag X6001, 2520, Potchefstroom, South Africa aut Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-15 0049-6979 224:5<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1547-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1547-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- de Klerk LP CSIR, Natural Resources and the Environment, PO Box 395, 0001, Pretoria, South Africa aut NATIONALLICENCE 700 1- de Klerk AR CSIR, Natural Resources and the Environment, PO Box 395, 0001, Pretoria, South Africa aut NATIONALLICENCE 700 1- Wepener V. Water Research Group, Unit for Environmental Science and Management, North-West University, Private Bag X6001, 2520, Potchefstroom, South Africa aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-15 0049-6979 224:5<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer