临汾段汾河水环境质量评价  

Assessment of Water Environmental Quality on Fenhe River in Linfen Section

作　　者：董苗[1] 张永清[1] 

机构地区：[1]山西师范大学城市与环境科学学院,山西临汾041004

出　　处：《山西师范大学学报（自然科学版）》2013年第3期119-122,共4页Journal of Shanxi Normal University(Natural Science Edition)

基　　金："十一五"国家科技支撑计划重点项目(2008BADA4801)

摘　　要：运用主成分分析法对临汾段汾河水质的分析结果显示,临汾段汾河在1993年至2008年的16年间水质呈不断下降的趋势:四项指标中BOD5增加了2.417,COD增加了2.379,DO增加了2.703,NH3N增加了1.108,从一定程度上反映了临汾段汾河的污染程度在不断加重;临汾段汾河水质下降的主要原因是沿岸市县经济迅速发展,工业化指数增高,城市生活污水排放量增大所致.Using the principal component analysis, the water quality of the Fenhe river was assessed, and the result shows that the quality of surface water has been declining in Linfen section from 1993 to 2008. The four indicators, such as BOD5 increased by 2. 417, COD 2. 379, DO 2. 703 and NH3--N 1. 108, present unsatisfactory trend, which reflect that the degree of pollution is constantly serious in some extent. The survey results of the decline of water quality show that it was due to the sewage emission in- creasing from industrial production and city life with the rapid economic development and increasing industrialization index in the coastal cities and counties.

关 键 词：主成分分析 临汾段汾河 水质评价 

分 类 号：X824[环境科学与工程—环境工程]