Returning long-range PM 2.5 transport into the leeward of East Asia in 2021 after Chinese economic recovery from the COVID-19 pandemic
Changes in the aerosol composition of sulfate (SO ) and nitrate (NO ) from 2012 to 2019 have been captured as a paradigm shift in the region downwind of China. Specifically, SO dramatically decreased and NO dramatically increased over downwind locations such as western Japan due to the faster reduct...
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| Veröffentlicht in: | Scientific reports 2022-04, Vol.12 (1), p.5539 |
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| creator | Itahashi, Syuichi Yamamura, Yuki Wang, Zhe Uno, Itsushi |
| description | Changes in the aerosol composition of sulfate (SO
) and nitrate (NO
) from 2012 to 2019 have been captured as a paradigm shift in the region downwind of China. Specifically, SO
dramatically decreased and NO
dramatically increased over downwind locations such as western Japan due to the faster reduction of SO
emissions than NO
emissions and the almost constant trend of NH
emissions from China. Emissions from China sharply decreased during COVID-19 lockdowns in February-March 2020, after which China's economic situation seemed to recover going into 2021. Given this substantial change in Chinese emissions, it is necessary to clarify the impact of long-range PM
transport into the leeward of East Asia. In this study, ground-based aerosol compositions observed at three sites in western Japan were analysed. The concentrations of PM
, SO
and NO
decreased in 2020 (during COVID-19) compared with 2018-2019 (before COVID-19). In 2021 (after COVID-19), PM
and NO
increased and SO
was unchanged. This suggests the returning long-range PM
transport in 2021. From numerical simulations, the status of Chinese emissions during COVID-19 did not explain this returning impact in 2021. This study shows that the status of Chinese emissions in 2021 recovered to that before COVID-19. |
| doi_str_mv | 10.1038/s41598-022-09388-2 |
| format | Article |
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) and nitrate (NO
) from 2012 to 2019 have been captured as a paradigm shift in the region downwind of China. Specifically, SO
dramatically decreased and NO
dramatically increased over downwind locations such as western Japan due to the faster reduction of SO
emissions than NO
emissions and the almost constant trend of NH
emissions from China. Emissions from China sharply decreased during COVID-19 lockdowns in February-March 2020, after which China's economic situation seemed to recover going into 2021. Given this substantial change in Chinese emissions, it is necessary to clarify the impact of long-range PM
transport into the leeward of East Asia. In this study, ground-based aerosol compositions observed at three sites in western Japan were analysed. The concentrations of PM
, SO
and NO
decreased in 2020 (during COVID-19) compared with 2018-2019 (before COVID-19). In 2021 (after COVID-19), PM
and NO
increased and SO
was unchanged. This suggests the returning long-range PM
transport in 2021. From numerical simulations, the status of Chinese emissions during COVID-19 did not explain this returning impact in 2021. This study shows that the status of Chinese emissions in 2021 recovered to that before COVID-19.</description><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-022-09388-2</identifier><identifier>PMID: 35365707</identifier><language>eng</language><publisher>England</publisher><subject>Air Pollutants - analysis ; China - epidemiology ; Communicable Disease Control ; COVID-19 - epidemiology ; Environmental Monitoring ; Far East - epidemiology ; Humans ; Pandemics ; Particulate Matter - analysis</subject><ispartof>Scientific reports, 2022-04, Vol.12 (1), p.5539</ispartof><rights>2022. The Author(s).</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35365707$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Itahashi, Syuichi</creatorcontrib><creatorcontrib>Yamamura, Yuki</creatorcontrib><creatorcontrib>Wang, Zhe</creatorcontrib><creatorcontrib>Uno, Itsushi</creatorcontrib><title>Returning long-range PM 2.5 transport into the leeward of East Asia in 2021 after Chinese economic recovery from the COVID-19 pandemic</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><description>Changes in the aerosol composition of sulfate (SO
) and nitrate (NO
) from 2012 to 2019 have been captured as a paradigm shift in the region downwind of China. Specifically, SO
dramatically decreased and NO
dramatically increased over downwind locations such as western Japan due to the faster reduction of SO
emissions than NO
emissions and the almost constant trend of NH
emissions from China. Emissions from China sharply decreased during COVID-19 lockdowns in February-March 2020, after which China's economic situation seemed to recover going into 2021. Given this substantial change in Chinese emissions, it is necessary to clarify the impact of long-range PM
transport into the leeward of East Asia. In this study, ground-based aerosol compositions observed at three sites in western Japan were analysed. The concentrations of PM
, SO
and NO
decreased in 2020 (during COVID-19) compared with 2018-2019 (before COVID-19). In 2021 (after COVID-19), PM
and NO
increased and SO
was unchanged. This suggests the returning long-range PM
transport in 2021. From numerical simulations, the status of Chinese emissions during COVID-19 did not explain this returning impact in 2021. This study shows that the status of Chinese emissions in 2021 recovered to that before COVID-19.</description><subject>Air Pollutants - analysis</subject><subject>China - epidemiology</subject><subject>Communicable Disease Control</subject><subject>COVID-19 - epidemiology</subject><subject>Environmental Monitoring</subject><subject>Far East - epidemiology</subject><subject>Humans</subject><subject>Pandemics</subject><subject>Particulate Matter - analysis</subject><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFTsFKAzEUDILYov0BD_J-IDV52djNUdaKHkQR8Vpi9-02spssSar0B_xug-jZucwMMwzD2LkUSylUfZkqqU3NBSIXRtU1xyM2R1FpjgpxxhYpvYsCjaaS5oTNlFZXeiVWc_b1THkfvfM9DMH3PFrfEzw9AC415OLSFGIG53OAvCMYiD5tbCF0sLYpw3VytqSAAiXYLlOEZuc8JQLaBh9Gt4VY1AfFA3QxjD8rzePr_Q2XBibrWyqdM3bc2SHR4pdP2cXt-qW549P-baR2M0U32njY_B1X_xa-AbL5U0M</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Itahashi, Syuichi</creator><creator>Yamamura, Yuki</creator><creator>Wang, Zhe</creator><creator>Uno, Itsushi</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope></search><sort><creationdate>20220401</creationdate><title>Returning long-range PM 2.5 transport into the leeward of East Asia in 2021 after Chinese economic recovery from the COVID-19 pandemic</title><author>Itahashi, Syuichi ; Yamamura, Yuki ; Wang, Zhe ; Uno, Itsushi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-pubmed_primary_353657073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Air Pollutants - analysis</topic><topic>China - epidemiology</topic><topic>Communicable Disease Control</topic><topic>COVID-19 - epidemiology</topic><topic>Environmental Monitoring</topic><topic>Far East - epidemiology</topic><topic>Humans</topic><topic>Pandemics</topic><topic>Particulate Matter - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Itahashi, Syuichi</creatorcontrib><creatorcontrib>Yamamura, Yuki</creatorcontrib><creatorcontrib>Wang, Zhe</creatorcontrib><creatorcontrib>Uno, Itsushi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Itahashi, Syuichi</au><au>Yamamura, Yuki</au><au>Wang, Zhe</au><au>Uno, Itsushi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Returning long-range PM 2.5 transport into the leeward of East Asia in 2021 after Chinese economic recovery from the COVID-19 pandemic</atitle><jtitle>Scientific reports</jtitle><addtitle>Sci Rep</addtitle><date>2022-04-01</date><risdate>2022</risdate><volume>12</volume><issue>1</issue><spage>5539</spage><pages>5539-</pages><eissn>2045-2322</eissn><abstract>Changes in the aerosol composition of sulfate (SO
) and nitrate (NO
) from 2012 to 2019 have been captured as a paradigm shift in the region downwind of China. Specifically, SO
dramatically decreased and NO
dramatically increased over downwind locations such as western Japan due to the faster reduction of SO
emissions than NO
emissions and the almost constant trend of NH
emissions from China. Emissions from China sharply decreased during COVID-19 lockdowns in February-March 2020, after which China's economic situation seemed to recover going into 2021. Given this substantial change in Chinese emissions, it is necessary to clarify the impact of long-range PM
transport into the leeward of East Asia. In this study, ground-based aerosol compositions observed at three sites in western Japan were analysed. The concentrations of PM
, SO
and NO
decreased in 2020 (during COVID-19) compared with 2018-2019 (before COVID-19). In 2021 (after COVID-19), PM
and NO
increased and SO
was unchanged. This suggests the returning long-range PM
transport in 2021. From numerical simulations, the status of Chinese emissions during COVID-19 did not explain this returning impact in 2021. This study shows that the status of Chinese emissions in 2021 recovered to that before COVID-19.</abstract><cop>England</cop><pmid>35365707</pmid><doi>10.1038/s41598-022-09388-2</doi></addata></record> |
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| identifier | EISSN: 2045-2322 |
| ispartof | Scientific reports, 2022-04, Vol.12 (1), p.5539 |
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| source | MEDLINE; Nature Free; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry; Springer Nature OA Free Journals |
| subjects | Air Pollutants - analysis China - epidemiology Communicable Disease Control COVID-19 - epidemiology Environmental Monitoring Far East - epidemiology Humans Pandemics Particulate Matter - analysis |
| title | Returning long-range PM 2.5 transport into the leeward of East Asia in 2021 after Chinese economic recovery from the COVID-19 pandemic |
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