OREGON WATER QUALITY INDEX: A TOOL FOR EVALUATING WATER QUALITY MANAGEMENT EFFECTIVENESS

摘要

The Oregon Water Quality Index (OWQI) is a single number that expresses water quality by integrating measurements of eight water quality variables (temperature, dissolved oxygen, biochemical oxygen demand, pH, ammonia + nitrate nitrogen, total phosphorus, total solids, and fecal coliform). Its purpose is to pro- vide a simple and concise method for expressing the ambient water quality of Oregon' s streams for general recreational use, including fishing and swimming.