流溪河水质评价与监控措施

Monitoring measures of Liuxi River

对流溪河水源 1997— 2 0 0 3年连续 7年的水质监测资料进行了分析 ,并采用有机综合污染指数法进行了水质评价。结果表明 ,流溪河水源的有机污染综合评价值逐年升高 ,水质逐年变差 ,尤其近 3年来出现重污染现象 ,且各断面在枯水期受到的污染最严重 ;其次为丰水期 ;平水期受到的污染最轻。

This paper is concerned with the author's seven years' observation and analysis of the water quality of Liuxi River during the period of 1997-2003. The investigation also involves the assessing method of organic composite pollution index for the water quality. As is known, Liuxi River is the key drinking water source of Guangzhou, which is of the survival importance both for Guangzhou city and Guangdonge province to protect people's health and happiness. The author's statistic results show that the organic content of the water in the River (Value A) has been becoming worsening from year to year with lowering of the water quality, especially, in the last three years. The worst pollution occurs in the period of lowest water level in each surveying situation, followed by the period of highest water level and the slightest appeared in the period of even water level. This paper has also put forward some suggestions and countermeasures for reinforced organic content monitoring and water resources protection for the river.