Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations
The sources, sinks, and overall importance of watersoluble organic carbon (WSOC) in the atmosphere are not well understood. Although the primary historical focus has been on particulate WSOC (WSOCP), here we also present results obtained using a newly developed technique that additionally measures g...
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ftuninhampshire:oai:scholars.unh.edu:earthsci_facpub-1194 2023-05-15T16:29:59+02:00 Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations Anderson, C Dibb, Jack E. Griffin, Robert J Bergin, M 2008-07-01T07:00:00Z application/pdf https://scholars.unh.edu/earthsci_facpub/195 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1194&context=earthsci_facpub unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/earthsci_facpub/195 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1194&context=earthsci_facpub Earth Sciences Scholarship water-soluble organic gas water-soluble organic particulate Atmospheric Sciences text 2008 ftuninhampshire 2023-01-30T21:34:30Z The sources, sinks, and overall importance of watersoluble organic carbon (WSOC) in the atmosphere are not well understood. Although the primary historical focus has been on particulate WSOC (WSOCP), here we also present results obtained using a newly developed technique that additionally measures gas-phase water-soluble organic carbon (WSOCG). These first-of-their-kind measurements show that WSOCG can often be more than ten times larger than WSOCP at both urban and remote locations. The average fraction of WSOC residing in the gas phase (fg = WSOCG/(WSOCG + WSOCP)) at five various field sites ranged from 0.64 to 0.93, implying significant differences in WSOC phase partitioning between locations. At Houston, TX, and Summit, Greenland, a repeatable diurnal pattern was observed, with minimum values for fg occurring at night. These trends likely are due, at least in part, to temperature and/or relative humidity related gas-to-particle partitioning. These coincident measurements of WSOC in both the gas and particle phases indicate that a relatively large reservoir of water-soluble organic mass is not taken into account by measurements focused only on WSOCP. In addition, a significant amount of WSOCG is available to form WSOCP or enter cloud droplets depending on the chemical and physical properties of the droplets and/or aerosols present. Citation: Anderson, C., J. E. Dibb, R. J. Griffin, and M. H. Bergin (2008), Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations, Geophys. Res. Lett., 35, L13706, doi:10.1029/2008GL033966. Text Greenland University of New Hampshire: Scholars Repository Greenland |
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Open Polar |
collection |
University of New Hampshire: Scholars Repository |
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ftuninhampshire |
language |
unknown |
topic |
water-soluble organic gas water-soluble organic particulate Atmospheric Sciences |
spellingShingle |
water-soluble organic gas water-soluble organic particulate Atmospheric Sciences Anderson, C Dibb, Jack E. Griffin, Robert J Bergin, M Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
topic_facet |
water-soluble organic gas water-soluble organic particulate Atmospheric Sciences |
description |
The sources, sinks, and overall importance of watersoluble organic carbon (WSOC) in the atmosphere are not well understood. Although the primary historical focus has been on particulate WSOC (WSOCP), here we also present results obtained using a newly developed technique that additionally measures gas-phase water-soluble organic carbon (WSOCG). These first-of-their-kind measurements show that WSOCG can often be more than ten times larger than WSOCP at both urban and remote locations. The average fraction of WSOC residing in the gas phase (fg = WSOCG/(WSOCG + WSOCP)) at five various field sites ranged from 0.64 to 0.93, implying significant differences in WSOC phase partitioning between locations. At Houston, TX, and Summit, Greenland, a repeatable diurnal pattern was observed, with minimum values for fg occurring at night. These trends likely are due, at least in part, to temperature and/or relative humidity related gas-to-particle partitioning. These coincident measurements of WSOC in both the gas and particle phases indicate that a relatively large reservoir of water-soluble organic mass is not taken into account by measurements focused only on WSOCP. In addition, a significant amount of WSOCG is available to form WSOCP or enter cloud droplets depending on the chemical and physical properties of the droplets and/or aerosols present. Citation: Anderson, C., J. E. Dibb, R. J. Griffin, and M. H. Bergin (2008), Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations, Geophys. Res. Lett., 35, L13706, doi:10.1029/2008GL033966. |
format |
Text |
author |
Anderson, C Dibb, Jack E. Griffin, Robert J Bergin, M |
author_facet |
Anderson, C Dibb, Jack E. Griffin, Robert J Bergin, M |
author_sort |
Anderson, C |
title |
Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
title_short |
Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
title_full |
Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
title_fullStr |
Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
title_full_unstemmed |
Simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
title_sort |
simultaneous measurements of particulate and gas-phase water-soluble organic carbon concentrations at remote and urban-influenced locations |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2008 |
url |
https://scholars.unh.edu/earthsci_facpub/195 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1194&context=earthsci_facpub |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Earth Sciences Scholarship |
op_relation |
https://scholars.unh.edu/earthsci_facpub/195 https://scholars.unh.edu/cgi/viewcontent.cgi?article=1194&context=earthsci_facpub |
_version_ |
1766019695121530880 |