福州市区饮用水源地环境安全评价与保障措施

Environmental Safety Evaluation and Safeguard Countermeasures for Drinking Waterhead(DW) of Fuzhou Urban District in Fujian Province

福州市区饮用水以地表水为主.分别采用水利部和国家环保总局提出的方法评价了该市区饮用水源地的水质安全状况,分析了变化趋势,结果表明,所有水源地水质年平均值均处于安全和基本安全水平.按环保总局的方法评价得出鳌峰洲水源地水质最差,粪大肠菌群个别时段超标严重,属不安全水平;水利部的方法评价得出义序水源地水质最差.在污染源调查的基础上,提出了水源地污染治理和环境管理对策.

Drinking water for Fuzhou urban district comes mainly from surface water.Water quality safety（WQS） status of each DW in 2006 is evaluated respectively by method recommended by Ministry of Water Resource（MWR） and method recommended by Ministry of Environmental Protection（MEP）.The results show that all DW water quality belongs to safe level as a whole.By MWR method evaluation WQS of Aofeng zhou DW comes to the worst and belongs to unsafe level with some index（such as coliform） seriously exceeding criteria sometimes.By MEP method evaluation Yi-xu comes to the worst.Based on the investigation of water pollutant sources,the strategies of pollution treatment and environmental management are proposed.