科研之友
微信
新浪微博
Facebook
分享链接
摘要
The study was designed to establish the distributions of trace metals, dissolved organic carbon, and inorganic nutrients as well as to assess the extent of anthropogenic inputs into the Narmada and Tapti rivers. Water and sediment qualities are variable in the rivers, and there are major pollution problems at certain locations, mainly associated with urban and industrial centers. The metal concentrations of samples of the aquatic compartments investigated were close to the maximum permissible concentration for the survival of aquatic life, except for higher values of Cu (5-763 mu g l(-1)), Pb (24-376 mu g l(-1)), Zn (24-730 mu g l(-1)), and Cr (70-740 mu g l(-1)) and for drinking water except for elevated concentrations of metals such as Pb, Fe (850-2,060 mu g l(-1)), Cr, and Ni (20-120 mu g l(-1)). In general, the concentrations of trace metals in the rivers vary down stream which may affect the "health" of the aquatic ecosystem and may also affect the health of the rural community that depends on the untreated river water directly for domestic use. The assessment of EF, I (geo), and PLI in the sediments reveals overall moderate pollution in the river basins.
- 出版日期2010-10
