{"title":"Reveal persistent haze pollution episodes in hefei: a perspective from ground-based and satellite observation","authors":"Zhiyuan Fang, Hao Yang, Cheng Li, Zhiqiang Kuang, Xiang Xu, Heng Jin","doi":"10.1007/s11869-024-01587-2","DOIUrl":null,"url":null,"abstract":"<div><p>Haze has a severe impact on public health and daily life. The effective monitoring of atmospheric environment and regional air quality can be achieved through the comprehensive utilization of ground-based stations and satellite observations. By analyzing pollutant data, ground-based lidar observations, VIIRS and CALIPSO satellite images, meteorological data, and backward trajectory patterns, the three winter aerosol pollution events are studied in the Hefei region from 2018 to 2020. The results reveal similar median PM<sub>2.5</sub> concentrations during the three aerosol pollution events, approximately 82 µg/m<sup>3</sup>, with aerosol extinction coefficients of about 0.8 and AOD values consistently exceeding 1. However, the formation processes and pollution mechanisms of the three haze events are different. Furthermore, the favorable meteorological conditions for aerosol pollution in the Hefei region during winter are the combined effects of surface cold high-pressure systems and low wind speeds. This study reveals the mechanisms underlying different aerosol pollution events in the winter season of the Hefei region, providing new reference and perspectives for aerosol pollution research and prevention.</p></div>","PeriodicalId":49109,"journal":{"name":"Air Quality Atmosphere and Health","volume":"17 11","pages":"2555 - 2568"},"PeriodicalIF":2.9000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Air Quality Atmosphere and Health","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s11869-024-01587-2","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Haze has a severe impact on public health and daily life. The effective monitoring of atmospheric environment and regional air quality can be achieved through the comprehensive utilization of ground-based stations and satellite observations. By analyzing pollutant data, ground-based lidar observations, VIIRS and CALIPSO satellite images, meteorological data, and backward trajectory patterns, the three winter aerosol pollution events are studied in the Hefei region from 2018 to 2020. The results reveal similar median PM2.5 concentrations during the three aerosol pollution events, approximately 82 µg/m3, with aerosol extinction coefficients of about 0.8 and AOD values consistently exceeding 1. However, the formation processes and pollution mechanisms of the three haze events are different. Furthermore, the favorable meteorological conditions for aerosol pollution in the Hefei region during winter are the combined effects of surface cold high-pressure systems and low wind speeds. This study reveals the mechanisms underlying different aerosol pollution events in the winter season of the Hefei region, providing new reference and perspectives for aerosol pollution research and prevention.
期刊介绍：
Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health.
It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes.
International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals.
Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements.
This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.
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