The main purpose of this project is to investigate the background information for the water and sediment of Tan-Shuei River, Nan-Kan River, Lao-Jie River, Jhuo-Shuei River, Xin-Hu-Wei River, Ji-Shuei River, Yan-Shuei River, Er-Ren River, Love River, and to analyze the concentration of pollutants in the river water and sediment. These investigations also include findings of the distribution and varieties of algae, conch, shellfish and benthic organism in the area, and a biological graphic illustration is established. A statistical method is used to study the potential effects of pollution and most probable pollution sources; these findings can serve as a guideline for the oversight of pollution control of this area. In order to understand the environmental background of the river basin under investigation and to estimate the degree of pollution of these rivers, RPI method was used for water quality, and the degree of potential hazards of heavy metals issued by USEPA sediment pollution risk assessment criteria were used as a reference to evaluate the magnitude of harm to human health and aquatic animals resulting from the sediment pollution. Algae, fish, crustacea and aquatic insects were used for the biological evaluation. According to the results of the above findings, we were able to classify the degrees of pollution for the whole river basin under investigation. The distinctive pollutants and major biological species identified from various sections of the river will serve as a guideline for future monitoring.

Water Quality Monitoring, Sediment Quality Guildline, Biotic Index, Tan-Shuei River, Nan-Kan River, Lao-Jie River, Jhuo-Shuei River, Xin-Hu-Wei River, Ji-Shuei River, Yan-Shuei River, Er-Ren River, Love River