Airborne measurements of organosulfates over the continental U.S
Organosulfates are important secondary organic aerosol (SOA) components and good tracers for aerosol heterogeneous reactions. However, the knowledge of their spatial distribution, formation conditions, and environmental impact is limited. In this study, we report two organosulfates, an isoprene‐deri...
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| creator | Liao, Jin Froyd, Karl D. Murphy, Daniel M. Keutsch, Frank N. Yu, Ge Wennberg, Paul O. St. Clair, Jason M. Crounse, John D. Wisthaler, Armin Mikoviny, Tomas Jimenez, Jose L. Campuzano-Jost, Pedro Day, Douglas A. Hu, Weiwei Ryerson, Thomas B. Pollack, Ilana B. Peischl, Jeff Anderson, Bruce E. Ziemba, Luke D. Blake, Donald R. Meinardi, Simone Diskin, Glenn |
| description | Organosulfates are important secondary organic aerosol (SOA) components and good tracers for aerosol heterogeneous reactions. However, the knowledge of their spatial distribution, formation conditions, and environmental impact is limited. In this study, we report two organosulfates, an isoprene‐derived isoprene epoxydiols (IEPOX) (2,3‐epoxy‐2‐methyl‐1,4‐butanediol) sulfate and a glycolic acid (GA) sulfate, measured using the NOAA Particle Analysis Laser Mass Spectrometer (PALMS) on board the NASA DC8 aircraft over the continental U.S. during the Deep Convective Clouds and Chemistry Experiment (DC3) and the Studies of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys (SEAC4RS). During these campaigns, IEPOX sulfate was estimated to account for 1.4% of submicron aerosol mass (or 2.2% of organic aerosol mass) on average near the ground in the southeast U.S., with lower concentrations in the western U.S. (0.2–0.4%) and at high altitudes ( |
| doi_str_mv | 10.1002/2014JD022378 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_4677836</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1680456232</sourcerecordid><originalsourceid>FETCH-LOGICAL-c6309-be11c5399f69e5e5b65bc3df9d1a36ad25cdc48c3bcf9ed5d5dea885fb92a5f03</originalsourceid><addsrcrecordid>eNqNkctPFjEUxRujAYLsWJtJ3LhwsI-5fWyMhMenhEiCEA2bptO5A4MzU2xnUP57az78gi7QdtHm9ndOeu8hZJvRHUYpf8Mpq472KedC6SdkgzNpSm2MfLq6qy_rZCula5qXpqKCao2sc6koF1JvkHe7XaxDHLEY0KU54oDjlIrQFiFeujGkuW_dhLlyi7GYrrDwYZy6MVOuL853Pj0nz1rXJ9y6PzfJ-eHB2d778vhk8WFv97j0UlBT1siYB2FMKw0CQi2h9qJpTcOckK7h4BtfaS9q3xpsIG90WkNbG-6gpWKTvF363sz1gI3PH4iutzexG1y8s8F19s-Xsbuyl-HWVlIpLWQ2eHVvEMO3GdNkhy557Hs3YpiTZRqMoqBE9W9UalAapNT_g9IKJBc8oy__Qq_DHMc8tEwpoExXwDL1ekn5GFKK2K5aZNT-ytw-zDzjLx6OZQX_TjgDYgl873q8e9TMHi1O94HTymRVuVR1acIfK5WLX61UQoH9_HFhzy44V6ewsBfiJ7SWxIo</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1675018451</pqid></control><display><type>article</type><title>Airborne measurements of organosulfates over the continental U.S</title><source>Wiley Free Content</source><source>Wiley Online Library All Journals</source><source>Alma/SFX Local Collection</source><creator>Liao, Jin ; Froyd, Karl D. ; Murphy, Daniel M. ; Keutsch, Frank N. ; Yu, Ge ; Wennberg, Paul O. ; St. Clair, Jason M. ; Crounse, John D. ; Wisthaler, Armin ; Mikoviny, Tomas ; Jimenez, Jose L. ; Campuzano-Jost, Pedro ; Day, Douglas A. ; Hu, Weiwei ; Ryerson, Thomas B. ; Pollack, Ilana B. ; Peischl, Jeff ; Anderson, Bruce E. ; Ziemba, Luke D. ; Blake, Donald R. ; Meinardi, Simone ; Diskin, Glenn</creator><creatorcontrib>Liao, Jin ; Froyd, Karl D. ; Murphy, Daniel M. ; Keutsch, Frank N. ; Yu, Ge ; Wennberg, Paul O. ; St. Clair, Jason M. ; Crounse, John D. ; Wisthaler, Armin ; Mikoviny, Tomas ; Jimenez, Jose L. ; Campuzano-Jost, Pedro ; Day, Douglas A. ; Hu, Weiwei ; Ryerson, Thomas B. ; Pollack, Ilana B. ; Peischl, Jeff ; Anderson, Bruce E. ; Ziemba, Luke D. ; Blake, Donald R. ; Meinardi, Simone ; Diskin, Glenn</creatorcontrib><description>Organosulfates are important secondary organic aerosol (SOA) components and good tracers for aerosol heterogeneous reactions. However, the knowledge of their spatial distribution, formation conditions, and environmental impact is limited. In this study, we report two organosulfates, an isoprene‐derived isoprene epoxydiols (IEPOX) (2,3‐epoxy‐2‐methyl‐1,4‐butanediol) sulfate and a glycolic acid (GA) sulfate, measured using the NOAA Particle Analysis Laser Mass Spectrometer (PALMS) on board the NASA DC8 aircraft over the continental U.S. during the Deep Convective Clouds and Chemistry Experiment (DC3) and the Studies of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys (SEAC4RS). During these campaigns, IEPOX sulfate was estimated to account for 1.4% of submicron aerosol mass (or 2.2% of organic aerosol mass) on average near the ground in the southeast U.S., with lower concentrations in the western U.S. (0.2–0.4%) and at high altitudes (<0.2%). Compared to IEPOX sulfate, GA sulfate was more uniformly distributed, accounting for about 0.5% aerosol mass on average, and may be more abundant globally. A number of other organosulfates were detected; none were as abundant as these two. Ambient measurements confirmed that IEPOX sulfate is formed from isoprene oxidation and is a tracer for isoprene SOA formation. The organic precursors of GA sulfate may include glycolic acid and likely have both biogenic and anthropogenic sources. Higher aerosol acidity as measured by PALMS and relative humidity tend to promote IEPOX sulfate formation, and aerosol acidity largely drives in situ GA sulfate formation at high altitudes. This study suggests that the formation of aerosol organosulfates depends not only on the appropriate organic precursors but also on emissions of anthropogenic sulfur dioxide (SO2), which contributes to aerosol acidity.
Key Points
IEPOX sulfate is an isoprene SOA tracer at acidic and low NO conditions
Glycolic acid sulfate may be more abundant than IEPOX sulfate globally
SO2 impacts IEPOX sulfate by increasing aerosol acidity and water uptake</description><identifier>ISSN: 2169-897X</identifier><identifier>EISSN: 2169-8996</identifier><identifier>DOI: 10.1002/2014JD022378</identifier><identifier>PMID: 26702368</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Acidity ; aerosol acidity ; Aerosols ; Air pollution ; Anthropogenic factors ; Atmospheric chemistry ; Clouds ; Emissions ; Environmental impact ; Formations ; free troposphere aerosols ; Geophysics ; Glycolic acid ; glycolic acid sulfate ; IEPOX sulfate ; Isoprene ; Meteorology ; organosulfate ; Palm ; Relative humidity ; Spatial distribution ; Sulfates ; Sulfur ; Sulfur dioxide ; Tracers ; Water uptake</subject><ispartof>Journal of geophysical research. Atmospheres, 2015-04, Vol.120 (7), p.2990-3005</ispartof><rights>2015. The Authors.</rights><rights>2015. American Geophysical Union. All Rights Reserved.</rights><rights>2015. The Authors. 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c6309-be11c5399f69e5e5b65bc3df9d1a36ad25cdc48c3bcf9ed5d5dea885fb92a5f03</citedby><cites>FETCH-LOGICAL-c6309-be11c5399f69e5e5b65bc3df9d1a36ad25cdc48c3bcf9ed5d5dea885fb92a5f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2014JD022378$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2014JD022378$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>230,314,776,780,881,1411,1427,27901,27902,45550,45551,46384,46808</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26702368$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liao, Jin</creatorcontrib><creatorcontrib>Froyd, Karl D.</creatorcontrib><creatorcontrib>Murphy, Daniel M.</creatorcontrib><creatorcontrib>Keutsch, Frank N.</creatorcontrib><creatorcontrib>Yu, Ge</creatorcontrib><creatorcontrib>Wennberg, Paul O.</creatorcontrib><creatorcontrib>St. Clair, Jason M.</creatorcontrib><creatorcontrib>Crounse, John D.</creatorcontrib><creatorcontrib>Wisthaler, Armin</creatorcontrib><creatorcontrib>Mikoviny, Tomas</creatorcontrib><creatorcontrib>Jimenez, Jose L.</creatorcontrib><creatorcontrib>Campuzano-Jost, Pedro</creatorcontrib><creatorcontrib>Day, Douglas A.</creatorcontrib><creatorcontrib>Hu, Weiwei</creatorcontrib><creatorcontrib>Ryerson, Thomas B.</creatorcontrib><creatorcontrib>Pollack, Ilana B.</creatorcontrib><creatorcontrib>Peischl, Jeff</creatorcontrib><creatorcontrib>Anderson, Bruce E.</creatorcontrib><creatorcontrib>Ziemba, Luke D.</creatorcontrib><creatorcontrib>Blake, Donald R.</creatorcontrib><creatorcontrib>Meinardi, Simone</creatorcontrib><creatorcontrib>Diskin, Glenn</creatorcontrib><title>Airborne measurements of organosulfates over the continental U.S</title><title>Journal of geophysical research. Atmospheres</title><addtitle>J. Geophys. Res. Atmos</addtitle><description>Organosulfates are important secondary organic aerosol (SOA) components and good tracers for aerosol heterogeneous reactions. However, the knowledge of their spatial distribution, formation conditions, and environmental impact is limited. In this study, we report two organosulfates, an isoprene‐derived isoprene epoxydiols (IEPOX) (2,3‐epoxy‐2‐methyl‐1,4‐butanediol) sulfate and a glycolic acid (GA) sulfate, measured using the NOAA Particle Analysis Laser Mass Spectrometer (PALMS) on board the NASA DC8 aircraft over the continental U.S. during the Deep Convective Clouds and Chemistry Experiment (DC3) and the Studies of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys (SEAC4RS). During these campaigns, IEPOX sulfate was estimated to account for 1.4% of submicron aerosol mass (or 2.2% of organic aerosol mass) on average near the ground in the southeast U.S., with lower concentrations in the western U.S. (0.2–0.4%) and at high altitudes (<0.2%). Compared to IEPOX sulfate, GA sulfate was more uniformly distributed, accounting for about 0.5% aerosol mass on average, and may be more abundant globally. A number of other organosulfates were detected; none were as abundant as these two. Ambient measurements confirmed that IEPOX sulfate is formed from isoprene oxidation and is a tracer for isoprene SOA formation. The organic precursors of GA sulfate may include glycolic acid and likely have both biogenic and anthropogenic sources. Higher aerosol acidity as measured by PALMS and relative humidity tend to promote IEPOX sulfate formation, and aerosol acidity largely drives in situ GA sulfate formation at high altitudes. This study suggests that the formation of aerosol organosulfates depends not only on the appropriate organic precursors but also on emissions of anthropogenic sulfur dioxide (SO2), which contributes to aerosol acidity.
Key Points
IEPOX sulfate is an isoprene SOA tracer at acidic and low NO conditions
Glycolic acid sulfate may be more abundant than IEPOX sulfate globally
SO2 impacts IEPOX sulfate by increasing aerosol acidity and water uptake</description><subject>Acidity</subject><subject>aerosol acidity</subject><subject>Aerosols</subject><subject>Air pollution</subject><subject>Anthropogenic factors</subject><subject>Atmospheric chemistry</subject><subject>Clouds</subject><subject>Emissions</subject><subject>Environmental impact</subject><subject>Formations</subject><subject>free troposphere aerosols</subject><subject>Geophysics</subject><subject>Glycolic acid</subject><subject>glycolic acid sulfate</subject><subject>IEPOX sulfate</subject><subject>Isoprene</subject><subject>Meteorology</subject><subject>organosulfate</subject><subject>Palm</subject><subject>Relative humidity</subject><subject>Spatial distribution</subject><subject>Sulfates</subject><subject>Sulfur</subject><subject>Sulfur dioxide</subject><subject>Tracers</subject><subject>Water uptake</subject><issn>2169-897X</issn><issn>2169-8996</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><recordid>eNqNkctPFjEUxRujAYLsWJtJ3LhwsI-5fWyMhMenhEiCEA2bptO5A4MzU2xnUP57az78gi7QdtHm9ndOeu8hZJvRHUYpf8Mpq472KedC6SdkgzNpSm2MfLq6qy_rZCula5qXpqKCao2sc6koF1JvkHe7XaxDHLEY0KU54oDjlIrQFiFeujGkuW_dhLlyi7GYrrDwYZy6MVOuL853Pj0nz1rXJ9y6PzfJ-eHB2d778vhk8WFv97j0UlBT1siYB2FMKw0CQi2h9qJpTcOckK7h4BtfaS9q3xpsIG90WkNbG-6gpWKTvF363sz1gI3PH4iutzexG1y8s8F19s-Xsbuyl-HWVlIpLWQ2eHVvEMO3GdNkhy557Hs3YpiTZRqMoqBE9W9UalAapNT_g9IKJBc8oy__Qq_DHMc8tEwpoExXwDL1ekn5GFKK2K5aZNT-ytw-zDzjLx6OZQX_TjgDYgl873q8e9TMHi1O94HTymRVuVR1acIfK5WLX61UQoH9_HFhzy44V6ewsBfiJ7SWxIo</recordid><startdate>20150416</startdate><enddate>20150416</enddate><creator>Liao, Jin</creator><creator>Froyd, Karl D.</creator><creator>Murphy, Daniel M.</creator><creator>Keutsch, Frank N.</creator><creator>Yu, Ge</creator><creator>Wennberg, Paul O.</creator><creator>St. Clair, Jason M.</creator><creator>Crounse, John D.</creator><creator>Wisthaler, Armin</creator><creator>Mikoviny, Tomas</creator><creator>Jimenez, Jose L.</creator><creator>Campuzano-Jost, Pedro</creator><creator>Day, Douglas A.</creator><creator>Hu, Weiwei</creator><creator>Ryerson, Thomas B.</creator><creator>Pollack, Ilana B.</creator><creator>Peischl, Jeff</creator><creator>Anderson, Bruce E.</creator><creator>Ziemba, Luke D.</creator><creator>Blake, Donald R.</creator><creator>Meinardi, Simone</creator><creator>Diskin, Glenn</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Ltd</general><scope>BSCLL</scope><scope>24P</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150416</creationdate><title>Airborne measurements of organosulfates over the continental U.S</title><author>Liao, Jin ; Froyd, Karl D. ; Murphy, Daniel M. ; Keutsch, Frank N. ; Yu, Ge ; Wennberg, Paul O. ; St. Clair, Jason M. ; Crounse, John D. ; Wisthaler, Armin ; Mikoviny, Tomas ; Jimenez, Jose L. ; Campuzano-Jost, Pedro ; Day, Douglas A. ; Hu, Weiwei ; Ryerson, Thomas B. ; Pollack, Ilana B. ; Peischl, Jeff ; Anderson, Bruce E. ; Ziemba, Luke D. ; Blake, Donald R. ; Meinardi, Simone ; Diskin, Glenn</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6309-be11c5399f69e5e5b65bc3df9d1a36ad25cdc48c3bcf9ed5d5dea885fb92a5f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Acidity</topic><topic>aerosol acidity</topic><topic>Aerosols</topic><topic>Air pollution</topic><topic>Anthropogenic factors</topic><topic>Atmospheric chemistry</topic><topic>Clouds</topic><topic>Emissions</topic><topic>Environmental impact</topic><topic>Formations</topic><topic>free troposphere aerosols</topic><topic>Geophysics</topic><topic>Glycolic acid</topic><topic>glycolic acid sulfate</topic><topic>IEPOX sulfate</topic><topic>Isoprene</topic><topic>Meteorology</topic><topic>organosulfate</topic><topic>Palm</topic><topic>Relative humidity</topic><topic>Spatial distribution</topic><topic>Sulfates</topic><topic>Sulfur</topic><topic>Sulfur dioxide</topic><topic>Tracers</topic><topic>Water uptake</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liao, Jin</creatorcontrib><creatorcontrib>Froyd, Karl D.</creatorcontrib><creatorcontrib>Murphy, Daniel M.</creatorcontrib><creatorcontrib>Keutsch, Frank N.</creatorcontrib><creatorcontrib>Yu, Ge</creatorcontrib><creatorcontrib>Wennberg, Paul O.</creatorcontrib><creatorcontrib>St. Clair, Jason M.</creatorcontrib><creatorcontrib>Crounse, John D.</creatorcontrib><creatorcontrib>Wisthaler, Armin</creatorcontrib><creatorcontrib>Mikoviny, Tomas</creatorcontrib><creatorcontrib>Jimenez, Jose L.</creatorcontrib><creatorcontrib>Campuzano-Jost, Pedro</creatorcontrib><creatorcontrib>Day, Douglas A.</creatorcontrib><creatorcontrib>Hu, Weiwei</creatorcontrib><creatorcontrib>Ryerson, Thomas B.</creatorcontrib><creatorcontrib>Pollack, Ilana B.</creatorcontrib><creatorcontrib>Peischl, Jeff</creatorcontrib><creatorcontrib>Anderson, Bruce E.</creatorcontrib><creatorcontrib>Ziemba, Luke D.</creatorcontrib><creatorcontrib>Blake, Donald R.</creatorcontrib><creatorcontrib>Meinardi, Simone</creatorcontrib><creatorcontrib>Diskin, Glenn</creatorcontrib><collection>Istex</collection><collection>Wiley-Blackwell Open Access Titles</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of geophysical research. Atmospheres</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liao, Jin</au><au>Froyd, Karl D.</au><au>Murphy, Daniel M.</au><au>Keutsch, Frank N.</au><au>Yu, Ge</au><au>Wennberg, Paul O.</au><au>St. Clair, Jason M.</au><au>Crounse, John D.</au><au>Wisthaler, Armin</au><au>Mikoviny, Tomas</au><au>Jimenez, Jose L.</au><au>Campuzano-Jost, Pedro</au><au>Day, Douglas A.</au><au>Hu, Weiwei</au><au>Ryerson, Thomas B.</au><au>Pollack, Ilana B.</au><au>Peischl, Jeff</au><au>Anderson, Bruce E.</au><au>Ziemba, Luke D.</au><au>Blake, Donald R.</au><au>Meinardi, Simone</au><au>Diskin, Glenn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Airborne measurements of organosulfates over the continental U.S</atitle><jtitle>Journal of geophysical research. Atmospheres</jtitle><addtitle>J. Geophys. Res. Atmos</addtitle><date>2015-04-16</date><risdate>2015</risdate><volume>120</volume><issue>7</issue><spage>2990</spage><epage>3005</epage><pages>2990-3005</pages><issn>2169-897X</issn><eissn>2169-8996</eissn><abstract>Organosulfates are important secondary organic aerosol (SOA) components and good tracers for aerosol heterogeneous reactions. However, the knowledge of their spatial distribution, formation conditions, and environmental impact is limited. In this study, we report two organosulfates, an isoprene‐derived isoprene epoxydiols (IEPOX) (2,3‐epoxy‐2‐methyl‐1,4‐butanediol) sulfate and a glycolic acid (GA) sulfate, measured using the NOAA Particle Analysis Laser Mass Spectrometer (PALMS) on board the NASA DC8 aircraft over the continental U.S. during the Deep Convective Clouds and Chemistry Experiment (DC3) and the Studies of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys (SEAC4RS). During these campaigns, IEPOX sulfate was estimated to account for 1.4% of submicron aerosol mass (or 2.2% of organic aerosol mass) on average near the ground in the southeast U.S., with lower concentrations in the western U.S. (0.2–0.4%) and at high altitudes (<0.2%). Compared to IEPOX sulfate, GA sulfate was more uniformly distributed, accounting for about 0.5% aerosol mass on average, and may be more abundant globally. A number of other organosulfates were detected; none were as abundant as these two. Ambient measurements confirmed that IEPOX sulfate is formed from isoprene oxidation and is a tracer for isoprene SOA formation. The organic precursors of GA sulfate may include glycolic acid and likely have both biogenic and anthropogenic sources. Higher aerosol acidity as measured by PALMS and relative humidity tend to promote IEPOX sulfate formation, and aerosol acidity largely drives in situ GA sulfate formation at high altitudes. This study suggests that the formation of aerosol organosulfates depends not only on the appropriate organic precursors but also on emissions of anthropogenic sulfur dioxide (SO2), which contributes to aerosol acidity.
Key Points
IEPOX sulfate is an isoprene SOA tracer at acidic and low NO conditions
Glycolic acid sulfate may be more abundant than IEPOX sulfate globally
SO2 impacts IEPOX sulfate by increasing aerosol acidity and water uptake</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>26702368</pmid><doi>10.1002/2014JD022378</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 2169-897X |
| ispartof | Journal of geophysical research. Atmospheres, 2015-04, Vol.120 (7), p.2990-3005 |
| issn | 2169-897X 2169-8996 |
| language | eng |
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| source | Wiley Free Content; Wiley Online Library All Journals; Alma/SFX Local Collection |
| subjects | Acidity aerosol acidity Aerosols Air pollution Anthropogenic factors Atmospheric chemistry Clouds Emissions Environmental impact Formations free troposphere aerosols Geophysics Glycolic acid glycolic acid sulfate IEPOX sulfate Isoprene Meteorology organosulfate Palm Relative humidity Spatial distribution Sulfates Sulfur Sulfur dioxide Tracers Water uptake |
| title | Airborne measurements of organosulfates over the continental U.S |
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