مروري بر روش شاخص هاي كيفي آبهاي سطحي و كاربرد آن در پهنه بندي قسمتي از رودخانه ي كارون

REVIEW OF WATER QUALITY INDICES AND APPLICATION OF NSFWQI TECHNIQUE TO WATER QUALITY KAROON RIVER

The zone of river pollution may be a primary and essential step in an appropriate quality management in order to establish a suitable strategy to control water pollution in river. Different methods of data analysis of river water quality and its zone have been investigated among which "water quality indices" is one of the simplest and most applied one. In this article, along with a quick review of the different methods of water quality indices and determining their advantages and disadvantages, the index of NSFWQI (National Sanitation Foundation of Water Quality Indices) is considered in detail. Using this method with available data, Karoon River-Dez has been studied. The result of the chemical water quality study of the river is shown as medium or bad, which may have been caused by the pouring of domestic, and industrial pollutants in it.