南四湖入湖、入干线河流与输水干线的水质动态分析  

Dynamic Analysis of the Water Quality of the Rivers around Nansi Lake

作　　者：辛颖[1] 武周虎[1] 慕金波[2] 杜金辉[2] 任杰[1] 

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266033 [2]山东省环境保护科学研究设计院,山东济南250013

出　　处：《安全与环境工程》2013年第3期36-41,共6页Safety and Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07210-007)

摘　　要：根据南四湖流域主要入湖、入干线河流和输水干线23个监控断面2000—2010年的水质监测数据,从年际、年内和不同年份,对流域内的水环境质量变化趋势进行了综合分析,并筛选出2010年与2000年水质最差与最好的河流进行了对比分析。结果表明:2000—2010年间,各监控断面CODCr和NH3-N浓度的年平均值总体呈下降趋势,它们的5年平移平均值也呈下降趋势;受水文情势、面源与点源污染的影响,流域内所有监控断面在年内水质呈现一定的变化规律;2010年与2000年相比,流域内CODCr值和NH3-N浓度总体下降率分别达到74.4%和93.1%,2010年与2005年相比,73.9%的监控断面污染物浓度下降,总体上水质有了大幅度的改善,但所有监控断面的CODCr年平均值仍未达到Ⅲ类水质标准;流域内水质最差河流主要分布在工业、城镇集中的地区。This paper chooses 23 monitoring sections of 23 rivers flowing into Nansi Lake or the water diversion route of Nansi Lake, analyzes the variation trends of water quality of the rivers from the aspects of annual variation,intra-annual variation and different years based on the monitoring data from 2000 to 2010,and screens out the rivers of the worst water quality and the best water quality in the years of 2000 and 2010 respectively. The results show that from 2000 to 2010 annual averages of CODer and NH3-H presented a mainly downward trend,five-year moving average presented a downward trend, the reduction ratios of CODcr and NH3- H reached 74.4% and 93. 1% in 2010 compared with those in 2000,the water quality of 73.9% monitoring sections had been improved from 2005 to 2010 and the overall water quality of the rivers had been greatly improved; however, the average CODer had not reached the water quality III standards and the worst water quality rivers were mainly located in the industrial and urban areas. The results also show that the water quality of the monitoring sections presented a certain in tra-annual variation because of the impacts of hydrology,non-point source pollution and point source pollution.

关 键 词：入湖河流 输水干线 水质动态变化 南四湖流域 

分 类 号：X522[环境科学与工程—环境工程]