The establishment and application of fuzzy comprehensive model with weight based on entropy technology for air quality assessment

Based on analyzing the interconnection and dynamics of poverty of city air system, assessment elements and theirs uncertainty were identified. Then assessment criterion of city air quality factors was formulated by established descending half of trapezium function. Factors’ weight was computed according to entropy technology which was put forward as an innovation in this paper. Because entropy technology was good at making using of adequate information and degree of order inner the initial factors’ monitoring values. Fuzzy comprehensive model based on entropy technology for air quality assessment was established by improving the method of computing factors’ weights. Finally, the new model was applied to assess air quality of Fuxin city in 2009, which showed that assessment result coincided with objective air quality condition of Fuxin city greatly.