INVESTIGATION OF PHYSICOCHEMICAL FACTORS OF WATER IN BAHMANSHIR RIVER, KHOUZESTAN PROVINCE, IRAN

This survey was carried out during 2004-2005 in Bahmanshir River located in southern part of Khouzestan province. The main water supply of the Bahmanshir River is obtained from Karoon River which is discharged into the Persian Gulf. In this project five stations were selected from Hafar Branch to the estuary of the River and physicochemical factors of water such as pH, Fe, DO, BOD5, Nitrate, Nitrite, and TSS were measured. The sampling was conducted montly.
The water temperature and pH changed from 13.2 to 27.5°C and from 7.2 to 8.7°C respectively. The minimum and maximum dissolved oxygen were 5.4 and 11.9mg/l, respectively. The results indicated that the amount of nutrients such as nitrate, nitrite, and ammonia were relatively low in Bahmanshir River.