Radiocarbon-Based Source Apportionment of Carbonaceous Aerosols at a Regional Background Site on Hainan Island, South China
To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (14C) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions....
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| Veröffentlicht in: | Environmental science & technology 2014-03, Vol.48 (5), p.2651-2659 |
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| creator | Zhang, Yan-Lin Li, Jun Zhang, Gan Zotter, Peter Huang, Ru-Jin Tang, Jian-Hui Wacker, Lukas Prévôt, André S H Szidat, Sönke |
| description | To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (14C) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions. The average contributions of fossil sources to EC, OC and WINSOC were 38 ± 11%, 19 ± 10%, and 17 ± 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (∼51%) and OC (∼30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5–10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining 14C-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 ± 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 ± 16% and 44 ± 14%, respectively. |
| doi_str_mv | 10.1021/es4050852 |
| format | Article |
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The average contributions of fossil sources to EC, OC and WINSOC were 38 ± 11%, 19 ± 10%, and 17 ± 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (∼51%) and OC (∼30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5–10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining 14C-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 ± 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 ± 16% and 44 ± 14%, respectively.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es4050852</identifier><identifier>PMID: 24506282</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Aerosols - analysis ; Air Movements ; Air Pollutants - analysis ; Applied sciences ; Atmospheric pollution ; Biomass ; Carbon ; Carbon - analysis ; China ; Combustion and energy production ; Emissions ; Environmental Monitoring - methods ; Exact sciences and technology ; Fossil Fuels - analysis ; Fossils ; Islands ; Particulate Matter - analysis ; Pollution ; Pollution sources. Measurement results ; Seasons</subject><ispartof>Environmental science & technology, 2014-03, Vol.48 (5), p.2651-2659</ispartof><rights>Copyright © 2014 American Chemical Society</rights><rights>2015 INIST-CNRS</rights><rights>Copyright American Chemical Society Mar 4, 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a507t-79431caa3b4fd3127a9e085637503468fafb59b277d6219ba9929110e58646433</citedby><cites>FETCH-LOGICAL-a507t-79431caa3b4fd3127a9e085637503468fafb59b277d6219ba9929110e58646433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es4050852$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es4050852$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2756,27067,27915,27916,56729,56779</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28318547$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24506282$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Yan-Lin</creatorcontrib><creatorcontrib>Li, Jun</creatorcontrib><creatorcontrib>Zhang, Gan</creatorcontrib><creatorcontrib>Zotter, Peter</creatorcontrib><creatorcontrib>Huang, Ru-Jin</creatorcontrib><creatorcontrib>Tang, Jian-Hui</creatorcontrib><creatorcontrib>Wacker, Lukas</creatorcontrib><creatorcontrib>Prévôt, André S H</creatorcontrib><creatorcontrib>Szidat, Sönke</creatorcontrib><title>Radiocarbon-Based Source Apportionment of Carbonaceous Aerosols at a Regional Background Site on Hainan Island, South China</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (14C) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions. The average contributions of fossil sources to EC, OC and WINSOC were 38 ± 11%, 19 ± 10%, and 17 ± 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (∼51%) and OC (∼30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5–10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining 14C-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 ± 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 ± 16% and 44 ± 14%, respectively.</description><subject>Aerosols - analysis</subject><subject>Air Movements</subject><subject>Air Pollutants - analysis</subject><subject>Applied sciences</subject><subject>Atmospheric pollution</subject><subject>Biomass</subject><subject>Carbon</subject><subject>Carbon - analysis</subject><subject>China</subject><subject>Combustion and energy production</subject><subject>Emissions</subject><subject>Environmental Monitoring - methods</subject><subject>Exact sciences and technology</subject><subject>Fossil Fuels - analysis</subject><subject>Fossils</subject><subject>Islands</subject><subject>Particulate Matter - analysis</subject><subject>Pollution</subject><subject>Pollution sources. 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Sci. Technol</addtitle><date>2014-03-04</date><risdate>2014</risdate><volume>48</volume><issue>5</issue><spage>2651</spage><epage>2659</epage><pages>2651-2659</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (14C) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions. The average contributions of fossil sources to EC, OC and WINSOC were 38 ± 11%, 19 ± 10%, and 17 ± 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (∼51%) and OC (∼30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5–10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining 14C-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 ± 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 ± 16% and 44 ± 14%, respectively.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>24506282</pmid><doi>10.1021/es4050852</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Environmental science & technology, 2014-03, Vol.48 (5), p.2651-2659 |
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| subjects | Aerosols - analysis Air Movements Air Pollutants - analysis Applied sciences Atmospheric pollution Biomass Carbon Carbon - analysis China Combustion and energy production Emissions Environmental Monitoring - methods Exact sciences and technology Fossil Fuels - analysis Fossils Islands Particulate Matter - analysis Pollution Pollution sources. Measurement results Seasons |
| title | Radiocarbon-Based Source Apportionment of Carbonaceous Aerosols at a Regional Background Site on Hainan Island, South China |
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