摘要
选取陕西境内渭河干流、支流共25个监测断面,对监测断面所取水样中的溶解氧、高锰酸盐指数、5日生化需氧量、氨氮、化学需氧量、挥发酚、氰化物、汞、六价铬、油类10个主要水质指标进行主成分分析研究。计算各断面的综合得分,根据得分越大,污染越严重的原则,得出渭河流域(陕西段)在西安-咸阳段这一工业和人口密集区的污染最为严重。
Ten water quality indexes,including dissolved oxygen,CODMn,BOD5,ammonia nitrogen,COD,volatile phenol,prussiate,Hg,Cr6＋,and oils,in the water samples collected from 25 monitoring sections of Shaanxi Weihe River were studied by principal component analysis.The comprehensive score of each section was calculated,the higher the score,the more serious the water would be polluted,it was concluded that the section of Xi’an-Xianyang of Weihe River was the most seriously polluted.
出处
《安徽农业科学》
CAS
2012年第29期14414-14416,共3页
Journal of Anhui Agricultural Sciences
基金
国家水体污染控制与治理科技重大专题(2009ZX07212-002)
关键词
主成分分析
水质
渭河流域(陕西段)
Principal component analysis
Water quality
Weihe River in Shaanxi Province
