基于模糊综合评价的主要大气污染物来源浅析  

Analysis of main sources of atmospheric pollutants based on fuzzy comprehensive evaluation

作　　者：卜兴兵 吴虹霁 俸强 廖翀 冯元超 王会镇 Bu Xingbing;Wu Hongji;Feng Qiang;Liao Chong;Feng Yuanchao;Wang Huizhen(Sichuan Ecological Environmental Monitoring Station,Chengdu 610041;College of Science of Xihua University,Chengdu 610039)

机构地区：[1]四川省生态环境监测总站,成都610041 [2]西华大学理学院,成都610039

出　　处：《环保科技》2022年第3期8-13,共6页Environmental Protection and Technology

基　　金：教育部春晖计划(191630);四川省教育厅项目(18ZB0571)。

摘　　要：本文基于四川省21个城市2017年PM_(2.5)、PM_(10)、SO_(2)、NO_(2)、CO和O_(3)浓度监测数据,运用模糊综合评价法对空气质量状况进行了评价与分析,选用复合污染特征分析研究了主要大气污染物来源。结果表明,2017年全省PM_(2.5)、PM_(10)、SO_(2)、NO_(2)、CO和O_(3)平均值分别为38μg/m^(3),60μg/m^(3),13μg/m^(3),29μg/m^(3),1.3 mg/m^(3),129μg/m^(3)。PM_(2.5)年均值超过了二级标准浓度35μg/m^(3)限值;21个城市ρ(PM_(2.5))/ρ(PM_(10))在0.40~0.75波动,ρ(NO_(2))/ρ(SO_(2))在1.03~6.0波动且比值大于1,空气污染的主要来源是颗粒物污染、工业废气和机动车尾气。全省首要污染物权重集占比依次为O_(3)、NO_(2)、PM_(2.5)、PM_(10)、CO、SO_(2),21个城市首要污染物权重占比前三位分别为PM_(2.5),O_(3),NO_(2)。全省21个城市环境空气质量状况均在Ⅰ级-Ⅱ级,其中环境空气质量状况为Ⅰ级优有9个城市,占所有评价城市的42.9%;环境空气质量状况为Ⅱ级良有12个城市,占所有评价城市的57.1%;全省环境空气质量状况属于Ⅰ级优。模糊综合评价较为客观反映了2017年四川省21个城市环境空气质量结果,该研究结果可为四川省大气污染防治提供依据。Based on the monitoring data of PM_(2.5),PM_(10),SO_(2),NO_(2),CO and O_(3) concentrations in 21 cities of Sichuan Province in 2017,this paper uses the fuzzy comprehensive evaluation method to evaluate and analyze the air quality,and selects the characteristics of composite pollution to analyze the source of major pollutants.The results showed that the average values of PM_(2.5),PM_(10),SO_(2),NO_(2),CO and O_(3) in 2017 were 38μg/m^(3),60μg/m^(3),13μg/m^(3),29μg/m^(3),1.3mg/m^(3) and 129μg/m^(3),respectively.The annual average of PM_(2.5) exceeded the standard concentration limit of 35μg/m^(3).Theρ(PM_(2.5))/ρ(PM_(10))of 21 cities in the province fluctuated between 0.40 and 0.75,and theρ(NO_(2))/ρ(SO_(2))fluctuated between 1.03 and 6.0 with a ratio greater than 1.The main sources of air pollution were particulate pollution,industrial waste gas and motor vehicle exhaust.The weight set proportion of primary pollutants in the province is O_(3),NO_(2),PM_(2.5),PM_(10),CO and SO_(2).The top three weight ratios of primary pollutants in 21 cities are PM_(2.5),O_(3) and NO_(2).The ambient air quality of 21 cities is in the level I–II.Among them,9 cities are superior at the level I,accounting for 42.9%of all the evaluated cities.12 cities are good at the level II,accounting for 57.1%of all the evaluated cities.The ambient air quality of the whole province is superior at the level I.The fuzzy comprehensive evaluation objectively reflects the environmental air quality of 21 cities in Sichuan Province in 2017.The results of this study can provide a basis for the prevention and control of air pollution in Sichuan Province.

关 键 词：大气评价 空气质量 模糊综合评价 大气污染防治 

分 类 号：X823[环境科学与工程—环境工程]