株洲市总体环境质量的模糊综合评价

Fuzzy Assessment of Overall Environmental Quality of Zhuzhou City

结合株洲市 1997年大气、湘江水、港水和土壤监测资料 ,运用模糊综合评价法对株洲市的总体环境质量进行了评价 .结果表明 :全市的大气环境质量为 级 ,工业区和交通区是该市大气环境治理的重点区域 ,SO2 为最主要污染因子 ;湘江株洲段的水环境质量为 级 ,霞湾断面是水环境治理的重点区域 ,非离子氨为最主要污染因子 ;枫溪、建宁、白石、铜塘、霞湾港及 5港港水均值的水环境质量分别为 级、 级、 级、 级、 级和 级 ;就重金属污染而言 ,清水塘区、污灌区、郊区及对照区的土壤环境质量分别为 级、 级、 级和 级 ,Cd为最主要污染因子 .依据评价结果 。

Fuzzy Mathematics method was used to assess the single environmental factors, such as air, water including Xiang River and five siderivers, and soil in Zhuzhou City (ZZ). Results show that ZZ air environmental quality belongs to Class Ⅱ with industrial area and traffic area as the main control areas and SO 2 as the main pollutant; water environmental quality of Xiang River ZZ section belongs to Class IV with Xiawan section as the main control one and NH 3-N as the main pollutant; and that of all siderivers Class Ⅳ except Baishi Class Ⅴ.The resuits also show that soil environmental quality in regard of heavy metals' pollution belongs to Class Ⅲ except the control area of Class Ⅱ with Cd as the major pollution item. Based on the assessment results, some suggestions were proposed to improve the environmental quality of ZZ.