Chemical characterization of PM2.5 from a southern coastal city of China: applications of modeling and chemical tracers in demonstration of regional transport
An intensive sampling campaign of airborne fine particles (PM 2.5 ) was conducted at Sanya, a coastal city in Southern China, from January to February 2012. Chemical analyses and mass reconstruction were used identify potential pollution sources and investigate atmospheric reaction mechanisms. A the...
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creator | Zhou, Jiamao Ho, Steven Sai Hang Cao, Junji Zhao, Zhuzi Zhao, Shuyu Zhu, Chongshu Wang, Qiyuan Liu, Suixin Zhang, Ting Zhao, Youzhi Wang, Ping Tie, Xuexi |
description | An intensive sampling campaign of airborne fine particles (PM
2.5
) was conducted at Sanya, a coastal city in Southern China, from January to February 2012. Chemical analyses and mass reconstruction were used identify potential pollution sources and investigate atmospheric reaction mechanisms. A thermodynamic model indicated that low ammonia and high relative humidity caused the aerosols be acidic and that drove heterogeneous reactions which led to the formation of secondary inorganic aerosol. Relationships among neutralization ratios, free acidity, and air-mass trajectories suggest that the atmosphere at Sanya was impacted by both local and regional emissions. Three major transport pathways were identified, and flow from the northeast (from South China) typically brought the most polluted air to Sanya. A case study confirmed strong impact from South China (e.g., Pearl River Delta region) (contributed 76.8% to EC, and then this result can be extended to primary pollutants) when the northeast winds were dominant. The Weather Research Forecasting Black carbon model and trace organic markers were used to apportion local pollution versus regional contributions. Results of the study offer new insights into the atmospheric conditions and air pollution at this coastal city. |
doi_str_mv | 10.1007/s11356-018-2238-1 |
format | Article |
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2.5
) was conducted at Sanya, a coastal city in Southern China, from January to February 2012. Chemical analyses and mass reconstruction were used identify potential pollution sources and investigate atmospheric reaction mechanisms. A thermodynamic model indicated that low ammonia and high relative humidity caused the aerosols be acidic and that drove heterogeneous reactions which led to the formation of secondary inorganic aerosol. Relationships among neutralization ratios, free acidity, and air-mass trajectories suggest that the atmosphere at Sanya was impacted by both local and regional emissions. Three major transport pathways were identified, and flow from the northeast (from South China) typically brought the most polluted air to Sanya. A case study confirmed strong impact from South China (e.g., Pearl River Delta region) (contributed 76.8% to EC, and then this result can be extended to primary pollutants) when the northeast winds were dominant. The Weather Research Forecasting Black carbon model and trace organic markers were used to apportion local pollution versus regional contributions. Results of the study offer new insights into the atmospheric conditions and air pollution at this coastal city.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-018-2238-1</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Acidity ; Aerosols ; Air pollution ; Ammonia ; Aquatic Pollution ; Atmospheric conditions ; Atmospheric models ; Atmospheric Protection/Air Quality Control/Air Pollution ; Black carbon ; Coastal environments ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental science ; Neutralization ; Outdoor air quality ; Particulate matter ; Pollutants ; Pollution ; Pollution sources ; Reaction mechanisms ; Relative humidity ; Research Article ; Rivers ; Thermodynamic models ; Tracers ; Transport ; Waste Water Technology ; Water Management ; Water Pollution Control ; Weather forecasting</subject><ispartof>Environmental science and pollution research international, 2018-07, Vol.25 (21), p.20591-20605</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2018</rights><rights>Environmental Science and Pollution Research is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-6b4639a703c201725e101d9ba2a4e55f05a1e6aa9a34781e475575e394ee164a3</citedby><cites>FETCH-LOGICAL-c407t-6b4639a703c201725e101d9ba2a4e55f05a1e6aa9a34781e475575e394ee164a3</cites><orcidid>0000-0003-1682-0516</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11356-018-2238-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11356-018-2238-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids></links><search><creatorcontrib>Zhou, Jiamao</creatorcontrib><creatorcontrib>Ho, Steven Sai Hang</creatorcontrib><creatorcontrib>Cao, Junji</creatorcontrib><creatorcontrib>Zhao, Zhuzi</creatorcontrib><creatorcontrib>Zhao, Shuyu</creatorcontrib><creatorcontrib>Zhu, Chongshu</creatorcontrib><creatorcontrib>Wang, Qiyuan</creatorcontrib><creatorcontrib>Liu, Suixin</creatorcontrib><creatorcontrib>Zhang, Ting</creatorcontrib><creatorcontrib>Zhao, Youzhi</creatorcontrib><creatorcontrib>Wang, Ping</creatorcontrib><creatorcontrib>Tie, Xuexi</creatorcontrib><title>Chemical characterization of PM2.5 from a southern coastal city of China: applications of modeling and chemical tracers in demonstration of regional transport</title><title>Environmental science and pollution research international</title><addtitle>Environ Sci Pollut Res</addtitle><description>An intensive sampling campaign of airborne fine particles (PM
2.5
) was conducted at Sanya, a coastal city in Southern China, from January to February 2012. Chemical analyses and mass reconstruction were used identify potential pollution sources and investigate atmospheric reaction mechanisms. A thermodynamic model indicated that low ammonia and high relative humidity caused the aerosols be acidic and that drove heterogeneous reactions which led to the formation of secondary inorganic aerosol. Relationships among neutralization ratios, free acidity, and air-mass trajectories suggest that the atmosphere at Sanya was impacted by both local and regional emissions. Three major transport pathways were identified, and flow from the northeast (from South China) typically brought the most polluted air to Sanya. A case study confirmed strong impact from South China (e.g., Pearl River Delta region) (contributed 76.8% to EC, and then this result can be extended to primary pollutants) when the northeast winds were dominant. The Weather Research Forecasting Black carbon model and trace organic markers were used to apportion local pollution versus regional contributions. Results of the study offer new insights into the atmospheric conditions and air pollution at this coastal city.</description><subject>Acidity</subject><subject>Aerosols</subject><subject>Air pollution</subject><subject>Ammonia</subject><subject>Aquatic Pollution</subject><subject>Atmospheric conditions</subject><subject>Atmospheric models</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Black carbon</subject><subject>Coastal environments</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental science</subject><subject>Neutralization</subject><subject>Outdoor air quality</subject><subject>Particulate matter</subject><subject>Pollutants</subject><subject>Pollution</subject><subject>Pollution sources</subject><subject>Reaction mechanisms</subject><subject>Relative humidity</subject><subject>Research Article</subject><subject>Rivers</subject><subject>Thermodynamic models</subject><subject>Tracers</subject><subject>Transport</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Weather 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Xuexi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chemical characterization of PM2.5 from a southern coastal city of China: applications of modeling and chemical tracers in demonstration of regional transport</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><date>2018-07-01</date><risdate>2018</risdate><volume>25</volume><issue>21</issue><spage>20591</spage><epage>20605</epage><pages>20591-20605</pages><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>An intensive sampling campaign of airborne fine particles (PM
2.5
) was conducted at Sanya, a coastal city in Southern China, from January to February 2012. Chemical analyses and mass reconstruction were used identify potential pollution sources and investigate atmospheric reaction mechanisms. A thermodynamic model indicated that low ammonia and high relative humidity caused the aerosols be acidic and that drove heterogeneous reactions which led to the formation of secondary inorganic aerosol. Relationships among neutralization ratios, free acidity, and air-mass trajectories suggest that the atmosphere at Sanya was impacted by both local and regional emissions. Three major transport pathways were identified, and flow from the northeast (from South China) typically brought the most polluted air to Sanya. A case study confirmed strong impact from South China (e.g., Pearl River Delta region) (contributed 76.8% to EC, and then this result can be extended to primary pollutants) when the northeast winds were dominant. The Weather Research Forecasting Black carbon model and trace organic markers were used to apportion local pollution versus regional contributions. Results of the study offer new insights into the atmospheric conditions and air pollution at this coastal city.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11356-018-2238-1</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-1682-0516</orcidid></addata></record> |
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subjects | Acidity Aerosols Air pollution Ammonia Aquatic Pollution Atmospheric conditions Atmospheric models Atmospheric Protection/Air Quality Control/Air Pollution Black carbon Coastal environments Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Environmental science Neutralization Outdoor air quality Particulate matter Pollutants Pollution Pollution sources Reaction mechanisms Relative humidity Research Article Rivers Thermodynamic models Tracers Transport Waste Water Technology Water Management Water Pollution Control Weather forecasting |
title | Chemical characterization of PM2.5 from a southern coastal city of China: applications of modeling and chemical tracers in demonstration of regional transport |
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