Assessment of Water Quality of a Polluted Pond at Mysore Using National Sanitation Foundation-Water Quality Index (NSF-WQI)

摘要

Microbes in freshwater often change the water quality and render it unfit for public use. Many methods of water quality determination have been discussed. A Simple but useful index is the National Sanitation Foundation-Water Quality Index (NSF-WQI). This index can be calculated by determining only nine physico-chemical parameters. Water temperature, pH, dissolved oxygen, biochemical oxygen demand, total phosphorus, nitrates, total suspended solids, turbidity and faecal conforms were used for the calculation of the index. The water quality of the pond was found to be medium.