2019—2022年海东市空气质量变化特征与气象要素相关性分析  

Analysis of Correlation between Air Quality Changes and Meteorological Factors in Haidong City from 2019 to 2022

作　　者：李荣 李国玉 祁栋林[3] Li Rong(Minhe Meteorological Bureau,Minhe,Qinghai 810801)

机构地区：[1]青海省民和县气象局,青海民和810801 [2]青海省海南藏族自治州气象局,青海共和813000 [3]青海省气象科学研究所,青海西宁810001

出　　处：《农业灾害研究》2023年第12期138-140,共3页Journal of Agricultural Catastrophology

摘　　要：利用2019—2022年海东市空气质量监测资料和气象资料分析了空气污染特征及其与气象因子的关系。结果表明:海东市大气污染物含量与平均气温、降水、相对湿度、气压之间具有显著的相关性,秋冬季节的首要污染物主要为PM_(10)、PM_(2.5),夏季的首要污染物主要是O_(3),采暖期各大气颗粒物浓度分布的离散度大于非采暖期,空气质量达标率显著地体现出非采暖季高于采暖季,夏季高于冬季特征。Using air quality monitoring data and meteorological data from 2019 to 2022 in Haidong City,this paper analyzes the characteristics of air pollution and its relationship with meteorological factors.The results show that the air quality in Jiayuguan City was mainly good,and the number of days with excellent environmental air quality level and days with severe or above pollution were increasing year by year,showing a polarization trend;PM_(10) was the main pollutant in Jiayuguan City,and the interannual occurrence of O_(3) as the primary pollutant shows a significant increasing trend,with a negative correlation between the monthly occurrence frequency of the two;Through correlation analysis,it was found that the Air Quality Index(AQI)was mainly influenced by particulate matter PM_(10);The main source of PM_(10) pollution in the east may be the Badain Jaran Desert,and the pollution process caused by southwest winds may be related to the transportation of the Qaidam Desert in Qinghai.

关 键 词：空气质量指数 达标率 PM_(10) 气象因子 相关性分析 采暖季 

分 类 号：X51[环境科学与工程—环境工程]