WATER QUALITY EVALUATION OF DAYA RIVER, BHUBANESWAR (INDIA) BASED ON NATIONAL SANITATION FOUNDATION’S WATER QUALITY INDEXKAMAL KISHORE AGRAWAL, CHITTARANJAN PANDA AND MAHENDRA KUMAR BHUYAN
The wastewater of the entire Bhubaneswar city is discharged by Gangua nallah, into the river Daya. Because of the wastewater which may be a domestic, commercial, industrial or agricultural the quality of the river water is getting deteriorated. To assess the water quality of Daya river, National Sanitation Foundation -Water Quality Index (NSF-WQI) is used. The study was done during Pre-monsoon, Monsoon and Post monsoon season respectively. At Barimala the water quality ranged from medium to good as per NSF-WQI additive (A) and medium as per NSF-WQI multiplicative (M) during all three seasons. At Gangua as per NSF-WQI (A) the quality is medium and as per NSF-WQI (M) it is a bad during all three seasons. The quality status at Manitri is medium as per NSF-WQI (A) and is bad as per NSF-WQI (M).