摘要
基于2016年2月、5月、8月和10月的水质监测数据,采用综合营养状态指数和营养状态指数对东坡区10个乡镇饮用水水源地进行了富营养化评价与分析。结果表明:各乡镇饮用水水源地除1个水库为中营养状态外,其余9个水库均为轻度富营养状态。各水库枯水期的富营养化程度全年同比最低。10个水库的水质均劣于《地表水环境质量标准》(GB3838-2002)Ⅲ类标准。水质超标及富营养化的主要污染因子为TN,主要污染来源是农业面源污染和生活污染。
Based on the water quality monitoring data in February,May,August and October in 2016,comprehensive trophic level index TLI（ Σ） and trophic level index TLI were used to evaluate and analyze the eutrophication of 10 drinking water sources in villages and towns in Dongpo District. The result showed that one reservoir was at medium eutrophication level,the other 9 reservoirs were mildly eutrophic. The eutrophication degree of all reservoirs was lowest in dry season. The water quality of the 10 reservoirs was inferior to the third class of ＂ surface water environmental quality standard＂（ GB3838-2002）. The main pollution factors of water quality and cause eutrophication were TN,the main pollution sources were agricultural non-point source and domestic pollution.
出处
《四川环境》
2017年第5期48-52,共5页
Sichuan Environment
关键词
东坡区
乡镇饮用水水源地
富营养化
分析
Dongpo district
drinking water sources in villages and towns
eutrophication
analysis
