Application of fuzzy mathematics evaluation to water quality of Qinglong River;

Water quality of Feilaixia Reservoir and the possibility of supply water to Guangzhou City;

Based on the comprehensive analysis of the present water quality of Pearl River Basin,the main pollution sources are found out.

Through the research of present situation of water quality for the Hanjiang River,Danjiang River Basin,this paper has more detailed analyzed the cause to form the present water quality,proposed the protective contermeasures for water pollution in these river basins.

Through investigation, monitoring and analysis of the present situation of water quality in the Lushui Lake, its quality is evaluated according to the situation in specific functional area of water .

In this paper,the authors evaluated the current situation of water quality of the river course in Songhuajiang River,pointed out the variation of water quality in annual average and within the year,and analyzed and appraised variation tendency of water quality for all past years based on the monitoring and measuring data for many years.

Estimation and analysis for present water quality of Baishi reservoir;