上海青草沙水库水质调查与评价

Evaluation of Water Quality in Qingcaosha Reservoir of Shanghai

摘要:

分别从常规理化指标、有机物指标、藻类和营养盐指标4个方面对上海新水源地青草沙水库进行水质调查，并采用水污染指数法对其进行水质评价.结果表明，各指标变化均与水中藻类生长有关.包括总氮评价时，5号点水质为劣Ⅴ类，水库水质整体为Ⅳ类；不包括总氮评价时，5号点水质在Ⅲ类以上，3号点水质在Ⅱ类以上，水库水质整体为Ⅱ类.青草沙水库水质满足作为饮用水水源的要求.

Abstract:

The water quality survey was divided into four parts such as conventional physical and chemical indicators, organic matters, algaes and nutrients indicators. Water pollution index (WPI) was adopted to evaluate the water quality. The results show that indicator changes are all linked to the growth of algaes in water. Considering total nitrogen, water quality of site 5 is even up to Ⅴ inferior class, the reservoir as a whole for Ⅳ class; without total nitrogen, water quality of site 5 is above Ⅲ class, water quality of site 3 is above ⅡClass, the reservoir as a whole for Ⅱ class. The Qingcaosha reservoir as a drinking water source can fully meet water quality requirements.