Fuzzy Comprehensive Evaluation of Air Quality in Shijiazhuang City Based on Grey Correlation

• 作者: Degang JI Jing LI Liu YANG Zhenzhen ZHANG Zhuhong YUAN
• 来源期刊: 农业生物技术:英文版
• 学科: 经济
• 关键词: Fuzzy comprehensive evaluation Grey correlation Air quality Shijiazhuang
• 年，卷（期）: nyswjsywb_2020,（3）
• 页码范围: 119-120
• 页数: 2页
• 分类号: F42

摘要

[Objectives]This study was conducted to evaluate the air quality of Shijiazhuang City,in order to facilitate the government to correctly formulate measures to prevent and control air pollution and protect Shijiazhuang's ambient air quality. [Methods] With the air quality data of Shijiazhuang City from February to March in 2019 as the research object,the gray correlation analysis method was used to determine weight A of each pollutant factor first,and then a single factor evaluation matrix R was constructed. The weight A and the single factor evaluation matrix R were synthesized using the M( ·,+) fuzzy composite operator,obtaining a fuzzy matrix B between the factor set and the evaluation level. [Results] The eigenvalue of air quality was calculated according to matrix B: H = 2. 259 5.[Conclusions]The air quality in Shijiazhuang City from February to March was between grade 2 and grade 3,closer to grade 2,indicating that the air quality was good.