Fuzzy Wastewater Quality Index (FWWQI) for Environmental Quality Assessment of Industrial Wastewater, a Case Study for South Pars Special Economic and Energy Zone

Environmental risk assessment is one of the most important parts of the environmental management system and plays a significant role in improving the quality indices and environmental performance. The cost of damage (direct, indirect, and intangible), and the consequences of pollution and environmental accidents are very high, causing significant damage to organizations and countries every year. Therefore, it is necessary that risk management, which involves identifying, assessing and controlling risk, is implemented at the level of companies that have the potential capacity for such events. In this research, the environmental quality assessment of the Pars Special Economic Region from 2011 to 2014 has been investigated using fuzzy logic. Fuzzy logic is a multi-valued logic that allows the grading of values to work with the user's values in a system.