2013年武威市集中式饮用水源地水质综合评价

Comprehensive evaluation of water quality in centralized drinking water source in Wuwei City in 2013

采用水质单项组分综合评价、综合污染指数评价及综合营养状态指数评价方法,对2013年武威市平原区集中式地表水地下水饮用水源地水质监测数据进行综合评价。结果表明,地下水饮用水源地4个监测断面水质良好。地表水饮用水源地中西营水库、黄羊水库、南营水库、扎子沟4个监测断面4个季度水质较清洁;红崖山水库4个季度水质轻污染;校东桥前3个季度水质处于重污染,第4季度水质为中污染。南营水库、红崖山水库、西营水库和黄羊水库4个监测断面4个季度营养状态均属于贫营养。根据水质综合评价结果,提出了平原区饮用水水源地的污染防治对策,旨在为石羊河流域饮用水源地的保护和相关研究工作提供借鉴。

Based on the combination of three evaluation methods, namely, the single constituent comprehensive evaluation method, the comprehensive contamination index method and comprehensive trophic status index method, the water quality monitoring data of centralized surface and ground potable water resources were comprehensively evaluated in plain terrain of Wuwei City in 2013. The results showed that ground water quality in the 4 monitoring sections were good; Surface water quality in the 4 monitoring sections of Xiying Reservoir, Huangyang Reservoir, Nanying Reservoir and Zhazigou during 4 quarters were fairly acceptable; The water quality in Redcliffe Mountain Reservoir was moderate; The water quality during the first three quarters in Xiaodongqiao were seriously contaminated, while in the last quarter in the region water quality was in moderate pollution. The comprehensive trophic statuses of the 4 monitoring sections of Nanying Reservoir, Redcliffe Mountain Reservoir, Xiying Reservoir and Huangyang Reservoir in 4 quarters were all poor. According to the evaluations, pollution prevention and control countermeasures of drinking water resources in plain terrain were proposed, which provides basis for drinking water protection and related research work in Shiyang River basin.