摘要
为摸清湘江干流衡阳段水环境质量现状和变化趋势,本研究参照2001～2005年在该区域中7个断面检测数据,以单指数污染评价法和综合污染指数法对11项主要污染指标进行了评价.结果表明:湘江干流衡阳段各监测段面不同污染物均出现不同程度的超标现象,湘江衡阳段干流整体水质呈改善趋势,控制断面水质明显好转,污染逐渐由上游(松柏断面)向下游(熬洲断面)转移.
In order to find out present conditions of soil environment quality and change trends of Xiangjiang main river of Hengyang section,this research adopted data of 7 sections of Xiangjiang main river in 2001～2005,and analyzed and assessed 11 index of environment risk in water by using single pollution index and comprehensive pollution index.The results showed that the pollution index of all samples exceeded environment quality standard for water in main river,repectively.The overall water quality of this area improves and the contaminant diverts from Songbo section to Aozhou section.
出处
《南华大学学报（自然科学版）》
2008年第3期39-43,共5页
Journal of University of South China：Science and Technology
关键词
湘江干流衡阳段
水环境质量
评价
Xiangjiang main river(Hengyang section)
water quality
assessment
