摘要
根据北京市环境保护监测中心的监测数据和国家环境空气质量标准,选取PM2.5、PM10、SO2、NO2、O3和CO作为评价因子,通过建立各污染物的隶属函数和权重集,运用模糊综合评判的方法对北京市的五个区域(城六区、西北部、东北部、东南部、西南部)2013年10月23-29日期间进行了环境空气质量评价。结果表明,该期间北京市环境空气中的主要污染物是PM2.5,其次是PM10、NO2、O3和CO,最后是SO2。空气质量评价结果由好到坏的顺序为:西北部、东北部、城六区、东南部、西南部。结果客观地反映了北京市的空气质量状况,从而为改善和治理大气污染提供理论依据。
Based on the monitoring data of Beijing Municipal Environmental Monitoring Center and the Chinese ambient air quality standards,PM2. 5,PM10,SO2,NO2,O3and CO were selected as the evaluation factors. According to the establishment of membership functions and the weight sets of each air pollutant,the ambient air qualities of five regions( six municipal districts,northwest,northeast,southeast,and southwest) of Beijing during the evaluation were evaluated by fuzzy comprehensive assessment method. It shows that the main pollutant in ambient air of Beijing is PM2. 5,second pollutants are PM10,NO2,O3,and CO,and the last pollutant is SO2.Air quality evaluation results from good to bad order are as follow: northwest,northeast,six city area,southeast,and southwest. Results objectively reflect the air quality status of Beijing,which provide theoretical basis for taking measures against air pollution.
出处
《中国人口·资源与环境》
CSSCI
北大核心
2014年第S2期143-146,共4页
China Population,Resources and Environment
基金
四川省科技应用基础项目"信息融合技术在地质灾害中的应用研究"(编号:2010JY0111)
关键词
模糊综合评判
空气质量评价
隶属函数
评价因子
fuzzy comprehensive assessment
air quality evaluation
membership function
evaluation factor
