پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 161 |
| تعداد شماره‌ها | 6,498 |
| تعداد مقالات | 70,231 |
| تعداد مشاهده مقاله | 123,439,421 |
| تعداد دریافت فایل اصل مقاله | 96,663,115 |
Heavy Metal Pollution in Kabini River Sediments | ||
| International Journal of Environmental Research | ||
| مقاله 7، دوره 4، شماره 4، بهمن 2010، صفحه 629-636 اصل مقاله (608.74 K) | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2010.248 | ||
| نویسندگان | ||
| A. Taghinia Hejabi* ؛ H.T. Basavarajappa؛ A.M. Qaid Saeed | ||
| Department of Studies in geology, University of Mysore, MGM-06, Karnataka, India | ||
| چکیده | ||
| The river Kabini which is tributary of Cauvery drains through industrial area at Nanjangud, Karnataka. Out of the sediment load carried by the river, 2micron the clay fraction was analyzed for total heavy metal contents and advanced statistical techniques such as cluster analysis and correlation matrix were applied in order to investigate the source of heavy metal concentration in the sediments. The river carries natural and anthropogenic pollutants, mainly heavy metal concentration of Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn which are released from industrial effluents, agricultural return flows and domestic sewage. The heavy metals find their residence in the colloidal form in water and in 2micron clay fraction in the river bed sediments. Systematic sampling of the river bed sediments at predefined locations has revealed that the metal accumulation is very close to normal and also beyond threshold limits. Compared with the maximum background values in Kabini river sediment, Pb was the highest in terms of contamination level, especially at point of influx of paper mill effluents, followed by Zn and Cu. | ||
| کلیدواژه‌ها | ||
| Kabini River؛ Sediments؛ Heavy metals؛ Physico-Chemical؛ Accumulation | ||
|
آمار تعداد مشاهده مقاله: 4,801 تعداد دریافت فایل اصل مقاله: 4,682 |
||