Heavy metals in the midstream of the Ganges River: spatio-temporal trends in a seasonally dry tropical region (India)
作者： Anand V. Singh , Jitendra Pandey
DOI: 10.1080/02508060.2014.921851
关键词: Environmental science 、 Irrigation 、 Human health 、 Water resources 、 River water 、 Tropics 、 Heavy metals 、 Hydrology 、 Water quality 、 Midstream
摘要: Midstream concentrations of Cd, Cr, Cu, Fe, Ni, Pb, Mn and Zn were studied at eight sampling sites in the Ganges River Varanasi from March 2011 to February 2013. Concentrations lowest Site 1 (upstream urban core), increased consistently downstream, highest 8 (downstream core). The rank concentration was Zn > Fe > Pb > Mn > Cu > Ni > Cr > Cd. Except for Zn, winter. did not exceed their internationally recommended maximum admissible (MAC). However, over 80% water samples contained 70% Pb about 50% Fe above respective MACs 3.0, 10.0 300 µg L−1. Since river is used irrigation drinking purposes, study has relevance a human health perspective.
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