四川盆地西北盆缘城市气溶胶污染特征  

Characteristics of Aerosol Pollution in Cities at the Northwest Margin of the Sichuan Basin

作　　者：蒋璐蔓 霍婷婷[1,2] 董发勤[1,2] 李博文 刘孟清 李冬坤 陈禹衡 张义烽[4] 宋鹏程 JIANG Lu-man;HUO Ting-ting;DONG Fa-qin;LI Bo-wen;LIU Meng-qing;LI Dong-kun;CHEN Yu-heng;ZHANG Yi-feng;SONG Peng-cheng(Environment and Resource College,Southwest University of Science and Technology,Mianyang Sichuan 621010,China;Key Laboratory of Solid Waste Treatment and Resource Recycle,Ministry of Education,Mianyang Sichuan 621010,China;Department of Material Science and Engineering,Michigan Technological University,Houghton Sichuan MI 49931,United States;Mianyang Environmental Monitoring Center Central Station,Mianyang Sichuan 621010,China)

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621010 [2]固体废物处理与资源化教育部重点实验室,四川绵阳621010 [3]Department of Material Science and Engineering,Michigan Technological University,Houghton,MI 49931,United States [4]绵阳市环境监测中心站,四川绵阳621010

出　　处：《矿物岩石地球化学通报》2021年第1期178-186,共9页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金重点项目(41831285)。

摘　　要：本文以四川盆地西北盆缘的广元、绵阳、德阳、成都、雅安为研究对象,探究2015~2019年5大城市空气质量及大气气溶胶污染特征变化规律,以期为深入揭示四川盆地城市大气气溶胶污染特征提供参考。通过对环境监测站实时数据,使用SPSS21.0软件进行数据分析得出成都、德阳、绵阳3城市因人为污染贡献较大和四川盆地封闭的地形的原因导致的PM_(2.5)、PM_(10)、NO_(2)、O_(3)污染相对较重,雅安、广元因人为污染贡献小、有利于污染物扩散的风向因而空气质量良好。整体上PM_(2.5)、PM_(10)、SO_(2)、NO_(2)均表现为夏季低、冬季高,而O_(3)具有相反的季节变化特征。SO_(2)、NO_(2)、PM_(2.5)、PM_(10)与相对湿度、降水量、平均气温均呈负相关关系,而与平均气压呈正相关关系。To provide a reference on revealing characteristics of aerosol pollution in the Sichuan Basin, this study selected cities in the northwestern Sichuan Basin, like Guangyuan, Mianyang, Deyang, Chengdu and Ya’an, as the research objects and analyzed changes of their air quality and atmospheric aerosol pollution during the period of from 2015 to 2019 by using the SPSS21.0 software to analyze the real-time data from environmental monitoring stations. The results showed that Chengdu, Deyang and Mianyang cities were heavily polluted by PM_(2.5), PM_(10), NO_(2), and O_(3), probably due to the large inputs of man-made pollutions and the enclosed terrain of the basin, while Ya’an and Guangyuan cities had the relatively good air quality, due to the small inputs of man-made pollutions and the auspicious wind direction. General speaking, concentrations of PM_(2.5), PM_(10), SO_(2) and NO_(2) showed a trend of lower in summer and higher in winter, while the concentrations of O_(3) showed an opposite trend, pollution degrees of SO_(2), NO_(2), PM_(2.5) and PM_(10) correlated negatively with relative humidity, precipitation and average temperature, but positively with the average air pressure.

关 键 词：四川盆地 气溶胶污染 空气质量 

分 类 号：P593[天文地球—地球化学]