Fuzzy Comprehensive Evaluation on Environment Air Quality of Fuxin City

To evaluate the ambient air quality status of the Fuxin city in Aug-Nov, 2011, we established fuzzy comprehensive evaluation mathematical model and membership function using lower semi-trapezoid distribution through the distribution of data collection and selecting the main factor affecting air quality, and have the result that urban monthly average air quality has declined with the temperature during the evaluation. The air quality in August to October achieved the national secondary standards, but air quality in November 2011 and in the night can only achieved the national tertiary standards, the air contains a relatively large number of respirable particulate which is seriously damaged to human health.