首页    期刊浏览 2024年11月24日 星期日
登录注册

文章基本信息

  • 标题:POLLUTION POTENTIAL OF TOXIC METALS IN THE YAMUNA RIVER AT DELHI, INDIA
  • 本地全文:下载
  • 作者:C.K. Jain ; D.C. Singhal ; M.K. Sharma
  • 期刊名称:Journal of Environmental Hydrology (ältere Jahrgänge)
  • 印刷版ISSN:1058-3912
  • 电子版ISSN:1996-7918
  • 出版年度:2001
  • 卷号:9
  • 出版社:IAEH
  • 摘要:A hydrochemical study of the Hindon river system in western Uttar Pradesh (India) has been carried out with the objective to examine variation in water quality characteristics within the river system, and to establish water quality-quantity relationships to provide a proper basis for establishing water quality objectives for the basin. The river receives considerable amounts of municipal and industrial wastes which contaminate the receiving water, especially immediately downstream of the outfalls. Agricultural runoff also contributes to river pollution. The river shows annual chemical cycles for most parameters, with elevated values in summer and minimum values in the monsoon season. Nitrate concentration did not show a seasonal variation. Most constituents decreased with increasing discharge, and dissolved oxygen concentration increased. The overall low value of r2 between water quality constituents and discharge may be attributed to the irregular discharge of industrial effluents of different kinds, climatic and physiographic controls including temperature, seasonality, the rainfall/runoff ratio, rock type and vegetation.
国家哲学社会科学文献中心版权所有