摘要
指出了南四湖入湖河流水质对南水北调东线山东段的调水水质安全具有重大影响,其水质状况备受各界关注。通过对2006~2015年南四湖38个主要入湖河口水质监测数据的统计比较与分析,计算了平均综合污染指数、改进的内梅罗污染指数、各水质指标的浓度变化趋势和污染分担率,进行了南四湖入湖河流水质综合评价与改善效果分析。结果表明:2015年10月与2006年11月相比,南四湖入湖河流水质平均综合污染指数下降了69.77%,内梅罗污染指数下降了68.70%;水质指标CODCr、NH3-N、T-P和T-N的平均值下降率分别为49%、93%、46%和76%;南四湖入湖河流水质污染程度排序:上级湖湖东>下级湖湖东>上级湖湖西>下级湖湖西;南四湖流域的主要污染物为CODCr和T-N;重污染河流由11条减少为1条,但老运河仍是南四湖流域治污的重点。
The water quality of rivers entering Nansi Lake has a significant impact on the water security in Shandong section of the Eastern Route Project of the South-to-North Water Diversion.So,its water quality has attracted wide attention.This paper statistically analyzed and compared the water quality monitoring data of 38 main estuaries in Nansi Lake from 2006 to 2015.This paper conducted the comprehensive evaluation and analysis on improvement effect of water quality for rivers entering Nansi Lake on the basis of calculating the average comprehensive pollution index,the improved Nemero pollution index,the concentration changing trends and pollution sharing rates of various water-quality indexes.The results showed that compared with November 2006,in October 2015,the average comprehensive pollution index dropped by 69.77% and the Nemero pollution index dropped by 68.70%for water quality in rivers entering Nansi Lake;The rate of average concentration decline of CODCr,NH3-N,T-P,T-N and CODMn were 49%,93%,46%,76% and 14% respectively;The degree of water pollution in rivers entering Nansi Lake were ranked as：East of Upper Lake〉East of Lower Lake〉West of Upper Lake〉West of Lower Lake;The main pollutants in Nansi Lake Basin were CODCr and T-N;The heavy polluted rivers reduced from 11 to 1,and the old canal was still the focus of pollution control in Nansi Lake Basin.
作者
冯娜
武周虎
郭琦
相福亮
岳太星
Feng Na;Wu Zhouhu;Guo Qi;Xiang Fuliang;Yue Taixing(School of Environment and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong 266033, China;Department of Environmental Protection of Shandong Province, Jinan , Shandong 250101, China;Shandong Province Environment Monitoring Center , Jinan,Shandong 250101, China)
出处
《绿色科技》
2018年第10期55-59,62,共6页
Journal of Green Science and Technology
基金
山东省环境保护科技研究计划专项(编号:2017-01)
关键词
南四湖
入湖河流
水质
综合评价
改善效果
Nansi Lake
rivers entering lake
water quality
comprehensive evaluation
improvement effect
