2017—2022年银川市空气质量变化及相关因素分析  

Analysis of Air Quality Changes and Related Factors in Yinchuan City from 2017 to 2022

作　　者：胡雨婷 马小军 张亚娟[1] 周泓洋 李丽萍[1] HU Yuting;MA Xiaojun;ZHANG Yajuan;ZHOU Hongyang;LI Liping(School of Public Health,Ningxia Medical University,Yinchuan 750004,China)

机构地区：[1]宁夏医科大学公共卫生学院,银川750004

出　　处：《宁夏医科大学学报》2025年第3期291-295,共5页Journal of Ningxia Medical University

基　　金：宁夏自然科学基金项目(2024AAC03203)。

摘　　要：目的探讨2017—2022年银川市空气质量的变化特征及其相关因素。方法收集银川市2017年1月1日至2023年4月30日空气质量数据及2022年9月20日至2022年11月20日气象数据。描述2017—2022年银川市空气质量整体变化特征;分析2022年冬季供暖期不同阶段污染物浓度变化情况,并分析各污染物之间及其与气象因素之间的相关性。结果2017—2022年银川市空气质量整体处于国家空气质量等级的良好水平,2017—2022年O_(3)-8 h、SO_(2)、CO年平均浓度连续6年低于国家二级标准,2018—2022年NO_(2)年平均浓度连续5年低于国家二级标准。2022年冬季供暖期,除O_(3)-8 h浓度降低外,其余各污染物(PM_(2.5)、PM_(10)、SO_(2)、NO_(2)、CO)浓度均升高,其中PM_(2.5)和PM_(10)浓度升高均超过50%(P均<0.05)。供暖期结束,SO_(2)、NO_(2)、CO浓度均降低(P均<0.05);2022年银川市PM_(10)与PM_(2.5)、SO_(2)、NO_(2)、CO均呈正相关,PM_(2.5)与SO_(2)、NO_(2)、CO均呈正相关,SO_(2)与NO_(2)、CO、O_(3)-8 h均呈正相关(P均<0.05),NO_(2)与CO呈正相关(P<0.05)。气温与PM_(2.5)、NO_(2)、CO均呈负相关,气压与PM_(10)、PM_(2.5)、SO_(2)、NO_(2)、O_(3)-8 h均呈负相关,风速与SO_(2)、NO_(2)、O_(3)-8 h均呈负相关,气温与O_(3)-8 h呈正相关,相对湿度与PM_(2.5)、NO_(2)均呈正相关(P均<0.05)。结论2017—2022年银川市空气质量整体处于良好水平,2022年冬季供暖对空气质量有影响,且各污染物浓度与气象因素之间存在相关性。Objective To investigate the evolving characteristics of air quality and its associated factors in Yinchuan city from 2017 to 2022.Methods Air quality data from January 1,2017 to April 30,2023 and meteorological data from September 20,2022 to November 20,2022 were collected in Yinchuan city using descriptive epidemiological research methods.The characteristics of the overall changes in air quality in Yinchuan city from 2017 to 2022 were described,and the changes in pollutant concentrations at different stages of the winter heating period in 2022 were analyzed.Then the correlations among pollutants and between them and meteorological factors were analyzed.Results The air quality in Yinchuan city was generally at the good level of the national air quality class from 2017 to 2022,the annual average concentrations of O_(3)-8 h,SO_(2),and CO were below the national secondary standard for six consecutive years from 2017 to 2022,and the annual average concentration of NO_(2)was below the national secondary standard for five consecutive years from 2018 to 2022.During the heating period in the winter of 2022,the concentrations of all pollutants(PM_(2.5),PM_(10),SO_(2),NO_(2),and CO)increased,except for the O_(3)-8 h concentration,which decreased,with the concentrations of PM_(2.5)and PM_(10) increasing by more than 50%(P all<0.05),and at the end of the heating period,the concentrations of SO_(2),NO_(2)and CO decreased(P all<0.05).PM_(10) was positively correlated with PM_(2.5),SO_(2),NO_(2),CO and O_(3)-8 h,PM_(2.5)was positively correlated with SO_(2),NO_(2),and CO,SO_(2)was positively correlated with NO_(2),CO and O_(3)-8 h(P all<0.05),NO_(2)was positively correlated with CO(P<0.05),indicating homology among the pollutants.Air temperature was negatively correlated with PM_(2.5),NO_(2),CO,barometric pressure was negatively correlated with PM_(10),PM_(2.5),SO_(2),NO_(2),O_(3)-8 h,and wind speed was negatively correlated with SO_(2),NO_(2),and O_(3)-8 h,and air temperature was positively correlated with O_(3)-8 h,and relat

关 键 词：银川市 大气质量 变化特征 

分 类 号：R737.9[医药卫生—肿瘤]