【摘要】 以熬州(湘江上游)、乔口(湘江中游)、鹿角(湘江下游)3个国控断面作为评价断面,以pH、DO、CODCr、NH4+-N、NO3--N、TP等6个指标作为参评因子,采用单因子评价法和内梅罗指数,综合分析评价了湘江2006年4~9月的水质污染状况。结果表明,湖南湘江水质已受到一定程度的污染,主要污染物为TP和CODCr。更多还原

【Abstract】 Taking the national controlling sections of Aozhou(upstream)、Qiaokou(midstream) and Lujiao(downstream) as evaluation sections,using six indixes of pH,DO,CODCr,NH4+-N,NO3——N,and TP as parameters,adopting the monomial evaluation method and Nemerow index,the status of water quality pollution in Xiangjiang river from Aprile to September.in 2006 were comprehensively analyzed and evaluated in this paper.The results indicated that Xiangjiang river had a certain degree of pollution,and the major pollutants were TP and CODCr..更多还原