Water Quality Assessment of Karoun River Using WQI
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 6, Issue 5
Abstract
Population growth and pollutions resulting from the discharge of various urban, industrial and agricultural, sewages, emulsions of waste disposal places and surface runoffs caused the pollution extension and more limited water resources. The zoning of water quality in this river is the initial and most important phase of quality management, because it informs the analyzer from the process and nature of pollution changes related to the time, place and special conditions. Karoun river in Karoun and Dez catchment with 65509 km2 is one of the most important rivers in Khoozestan province originated from Zagros mountains .To determine and classify the water quality of this river in Ahwaz, three stations were selected on this river and sampling was conducted monthly for one aqueous year (June 2009 to July 2010). Then using the index regime of the water quality and based on the curves and qualitative index tables given by American national sanitation association in 1970 , the annual and monthly qualitative index for any station was determined .Also different stations classified along the path of the river. According to the obtained results, the range of annual quality in different stations was 463-394. The most amount of the quality index was related to Zergan station in upstream and the least to the Pole- Panjom station in the middle of the river in Ahwaz. At each three stations, the quality of water is categorized in a bad class. Altogether, with respect to the classification regime of quality index, it is revealed that Zergan station is located at the fourth group meaning the occurrence of dangerous changes in aqueous regime and Pole -Panjom and Omotomei stations at the fitfth group meaning the pollution at a very dangerous level.
Authors and Affiliations
Maryam Mohammadi Roozbahani *| Environmental Science Department , Graduate School of the Environment, Science and Research Branch, Islamic Azad University, Khoozestan, Iran, email: Mmohammadiroozbahani@yahoo.com, Mehran Naderi Boldaji| Environmental Science Department , MSc Student of Environmental Science, Science and Research Branch, Islamic Azad University, Khoozestan, Iran
Keywords
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