Spatiotemporal characterization of aerosols and trace gases over the Yangtze River Delta region, China: impact of trans-boundary pollution and meteorology
文献类型：期刊论文
| 作者 | Javed, Zeeshan2; Bilal, Muhammad3; Qiu, Zhongfeng3; Li, Guanlin2; Sandhu, Osama4; Mehmood, Khalid5; Wang, Yu3 ; Ali, Md. Arfan3; Liu, Cheng6,7,8,9; Wang, Yuhang10
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| 刊名 | ENVIRONMENTAL SCIENCES EUROPE
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| 出版日期 | 2022-12-01 |
| 卷号 | 34 |
| ISSN号 | 2190-4707 |
| 关键词 | Yangtze River Delta region Ozone Particulate matter China's clean air action plan TROPOMI National Ambient Air Quality Standards |
| DOI | 10.1186/s12302-022-00668-2 |
| 通讯作者 | Du, Daolin(ddl@ujs.edu.cn) ; Zheng, Xiaojun(xjzheng@ujs.edu.cn) |
| 英文摘要 | Background The spatiotemporal variation of observed trace gases (NO2, SO2, O-3) and particulate matter (PM2.5, PM10) were investigated over cities of Yangtze River Delta (YRD) region including Nanjing, Hefei, Shanghai and Hangzhou. Furthermore, the characteristics of different pollution episodes, i.e., haze events (visibility < 7 km, relative humidity < 80%, and PM2.5 > 40 mu g/m(3)) and complex pollution episodes (PM2.5 > 35 mu g/m(3) and O-3 > 160 mu g/m(3)) were studied over the cities of the YRD region. The impact of China clean air action plan on concentration of aerosols and trace gases is examined. The impacts of trans-boundary pollution and different meteorological conditions were also examined. Results The highest annual mean concentrations of PM2.5, PM10, NO2 and O-3 were found for 2019 over all the cities. The annual mean concentrations of PM2.5, PM10, and NO2 showed continuous declines from 2019 to 2021 due to emission control measures and implementation of the Clean Air Action plan over all the cities of the YRD region. The annual mean O-3 levels showed a decline in 2020 over all the cities of YRD region, which is unprecedented since the beginning of the China's National environmental monitoring program since 2013. However, a slight increase in annual O-3 was observed in 2021. The highest overall means of PM2.5, PM10, SO2, and NO2 were observed over Hefei, whereas the highest O-3 levels were found in Nanjing. Despite the strict control measures, PM2.5 and PM10 concentrations exceeded the Grade-1 National Ambient Air Quality Standards (NAAQS) and WHO (World Health Organization) guidelines over all the cities of the YRD region. The number of haze days was higher in Hefei and Nanjing, whereas the complex pollution episodes or concurrent occurrence of O-3 and PM2.5 pollution days were higher in Hangzhou and Shanghai. The in situ data for SO2 and NO2 showed strong correlation with Tropospheric Monitoring Instrument (TROPOMI) satellite data. Conclusions Despite the observed reductions in primary pollutants concentrations, the secondary pollutants formation is still a concern for major metropolises. The increase in temperature and lower relative humidity favors the accumulation of O-3, while low temperature, low wind speeds and lower relative humidity favor the accumulation of primary pollutants. This study depicts different air pollution problems for different cities inside a region. Therefore, there is a dire need to continuous monitoring and analysis of air quality parameters and design city-specific policies and action plans to effectively deal with the metropolitan pollution. |
| WOS关键词 | AIR-POLLUTION ; OZONE CONCENTRATIONS ; NORTH CHINA ; PM2.5 ; HAZE ; MERCURY ; TRENDS ; PM10 ; CITY ; NO2 |
| 资助项目 | Jiangsu Funding Program for Excellent Postdoctoral Talent[2022ZB651] ; National Natural Science Foundation of China[32071521] ; Scientific Research Foundation for Senior Talent of Jiangsu University, China[20JDG067] ; Jiangsu Province Double Innovation PhD Grant ; Special Project of Jiangsu Distinguished Professor[R2018T22] ; Startup Foundation for Introduction Talent of NUIST[2017r107] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000852401100001 |
| 资助机构 | Jiangsu Funding Program for Excellent Postdoctoral Talent ; National Natural Science Foundation of China ; Scientific Research Foundation for Senior Talent of Jiangsu University, China ; Jiangsu Province Double Innovation PhD Grant ; Special Project of Jiangsu Distinguished Professor ; Startup Foundation for Introduction Talent of NUIST |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128835]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Du, Daolin; Zheng, Xiaojun |
| 作者单位 | 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China 2.Jiangsu Univ, Sch Environm & Safety Engn, Inst Environm & Ecol, Zhenjiang 212013, Jiangsu, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China 4.Natl Agromet Ctr, Pakistan Meteorol Dept, Islamabad 44000, Pakistan 5.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change ILCEC, Minist Educ,Key Lab Meteorol Disaster,CMA Key Lab, Nanjing 210044, Peoples R China 6.Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230026, Peoples R China 7.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 8.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 9.Univ Sci & Technol China, Anhui Higher Educ Inst, Key Lab Precis Sci Instrumentat, Hefei 230026, Peoples R China 10.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA |
| 推荐引用方式 GB/T 7714 | Javed, Zeeshan,Bilal, Muhammad,Qiu, Zhongfeng,et al. Spatiotemporal characterization of aerosols and trace gases over the Yangtze River Delta region, China: impact of trans-boundary pollution and meteorology[J]. ENVIRONMENTAL SCIENCES EUROPE,2022,34. |
| APA | Javed, Zeeshan.,Bilal, Muhammad.,Qiu, Zhongfeng.,Li, Guanlin.,Sandhu, Osama.,...&Zheng, Xiaojun.(2022).Spatiotemporal characterization of aerosols and trace gases over the Yangtze River Delta region, China: impact of trans-boundary pollution and meteorology.ENVIRONMENTAL SCIENCES EUROPE,34. |
| MLA | Javed, Zeeshan,et al."Spatiotemporal characterization of aerosols and trace gases over the Yangtze River Delta region, China: impact of trans-boundary pollution and meteorology".ENVIRONMENTAL SCIENCES EUROPE 34(2022). |
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来源：合肥物质科学研究院
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