Fuzzy mathematics evaluation of atmosphere environmental quality in Shaanxi province

Comprehensive evaluation of atmosphere environmental quality of Shaanxi province was conducted applying fuzzy mathematics method in ten years from 2000 to 2009. Results showed that the atmosphere environmental quality was middle pollution level in 2000 and 2001, clean level in 2007, and slight pollution level in others years. The atmosphere pollution matters had been efficiently controlled with the development of social economics in Shaanxi province.