Risk assessment methodology for Shenyang Chemical Industrial Park based on fuzzy comprehensive evaluation

Risk assessment methodology for chemicals in Shenyang Chemical Industrial Park (SCIP) was established from the realities of frequent environmental pollution emergencies, just for the sake of quantitatively describing the risk levels of the chemicals, and for conducting priority control for those typical ones among them. Meanwhile vapor pressure (PV), median lethal concentration (LC50), combustibility and explosibility (CE), popularity (P) and detection frequency (DF) are selected as the risk assessment index for the chemicals, and then the weight from each assessment indicator on the surveillance levels for those chemicals has been identified. Finally, Fuzzy Comprehensive Evaluation (FCE) was adopted to work out the surveillance assessment level for each chemical in SCIP. The results show that 14 chemicals with relatively high-risk levels have been identified based on the above methods. Study on the risk assessment methodology for SCIP shall avail judgment on the risk levels for chemicals, allowing better management and control for chemicals accordingly.