The main purpose of this project is to investigate the basic background for the water and sediment of Ke-Ya River, San-Xing-Gong River and Bei Gang River, and to analyze the concentration of pollutant in the river water and sediment. These investigations also include findings of the distribution and varieties of conches in the area, and a biological graphic illustration is established. A statistical method is used to study the possible potential pollution and most possible source of pollution, these findings can serve as a guideline for the management of pollution control of this area. 　　In order to understand the environmental background of the river basin under investigation, degree of pollution of these rivers were being estimated, RPI method was used for the water quality, and the degree of potential hazard of heavy metal issued by EPB of NY State was used for sediment evaluation. The minimal and most stringent influential standards were used as the criteria for the evaluation. Fishes, crustacea and aquatic insects was used for the biological evaluation. The multi variable statistical method was used to understand the relation between water quality and biological species, also time and space dependence were studied. According to the results of the above findings, we were able to identify different degree of pollution for the whole river basin under investigation, and the prior pollutant and major bio species were identified for various section of the river, and will serve as the guideline for future monitoring.

Water Quality Monitoring,Sediment Quality Guildline,Multi-variate Analysis,Ke-Ya River,Bei Gang River