Elemental composition of organic aerosol: The gap between ambient and laboratory measurements
A large data set including surface, aircraft, and laboratory observations of the atomic oxygen-to-carbon (O:C) and hydrogen-to-carbon (H:C) ratios of organic aerosol (OA) is synthesized and corrected using a recently reported method. The whole data set indicates a wide range of OA oxidation and a tr...
| Main Authors: | , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Geophysical Union (AGU)
2016
|
| Online Access: | http://hdl.handle.net/1721.1/101628 https://orcid.org/0000-0003-2894-5738 https://orcid.org/0000-0003-1790-0438 |
| _version_ | 1826214398142709760 |
|---|---|
| author | Chen, Qi Heald, Colette L. Jimenez, Jose L. Canagaratna, Manjula R. Zhang, Qi He, Ling-Yan Huang, Xiao-Feng Campuzano-Jost, Pedro Palm, Brett B. Poulain, Laurent Kuwata, Mikinori Martin, Scot T. Abbatt, Jonathan P. D. Lee, Alex K.Y. Liggio, John |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Chen, Qi Heald, Colette L. Jimenez, Jose L. Canagaratna, Manjula R. Zhang, Qi He, Ling-Yan Huang, Xiao-Feng Campuzano-Jost, Pedro Palm, Brett B. Poulain, Laurent Kuwata, Mikinori Martin, Scot T. Abbatt, Jonathan P. D. Lee, Alex K.Y. Liggio, John |
| author_sort | Chen, Qi |
| collection | MIT |
| description | A large data set including surface, aircraft, and laboratory observations of the atomic oxygen-to-carbon (O:C) and hydrogen-to-carbon (H:C) ratios of organic aerosol (OA) is synthesized and corrected using a recently reported method. The whole data set indicates a wide range of OA oxidation and a trajectory in the Van Krevelen diagram, characterized by a slope of −0.6, with variation across campaigns. We show that laboratory OA including both source and aged types explains some of the key differences in OA observed across different environments. However, the laboratory data typically fall below the mean line defined by ambient observations, and little laboratory data extend to the highest O:C ratios commonly observed in remote conditions. OA having both high O:C and high H:C are required to bridge the gaps. Aqueous-phase oxidation may produce such OA, but experiments under realistic ambient conditions are needed to constrain the relative importance of this pathway. |
| first_indexed | 2024-09-23T16:04:27Z |
| format | Article |
| id | mit-1721.1/101628 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:04:27Z |
| publishDate | 2016 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/1016282022-10-02T06:12:19Z Elemental composition of organic aerosol: The gap between ambient and laboratory measurements Chen, Qi Heald, Colette L. Jimenez, Jose L. Canagaratna, Manjula R. Zhang, Qi He, Ling-Yan Huang, Xiao-Feng Campuzano-Jost, Pedro Palm, Brett B. Poulain, Laurent Kuwata, Mikinori Martin, Scot T. Abbatt, Jonathan P. D. Lee, Alex K.Y. Liggio, John Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Chen, Qi Heald, Colette L. A large data set including surface, aircraft, and laboratory observations of the atomic oxygen-to-carbon (O:C) and hydrogen-to-carbon (H:C) ratios of organic aerosol (OA) is synthesized and corrected using a recently reported method. The whole data set indicates a wide range of OA oxidation and a trajectory in the Van Krevelen diagram, characterized by a slope of −0.6, with variation across campaigns. We show that laboratory OA including both source and aged types explains some of the key differences in OA observed across different environments. However, the laboratory data typically fall below the mean line defined by ambient observations, and little laboratory data extend to the highest O:C ratios commonly observed in remote conditions. OA having both high O:C and high H:C are required to bridge the gaps. Aqueous-phase oxidation may produce such OA, but experiments under realistic ambient conditions are needed to constrain the relative importance of this pathway. National Science Foundation (U.S.) (ATM-1238109) 2016-03-08T01:26:36Z 2016-03-08T01:26:36Z 2015-05 2015-03 Article http://purl.org/eprint/type/JournalArticle 00948276 http://hdl.handle.net/1721.1/101628 Chen, Qi, Colette L. Heald, Jose L. Jimenez, Manjula R. Canagaratna, Qi Zhang, Ling-Yan He, Xiao-Feng Huang, et al. “Elemental Composition of Organic Aerosol: The Gap Between Ambient and Laboratory Measurements.” Geophysical Research Letters 42, no. 10 (May 22, 2015): 4182–4189. © 2015 American Geophysical Union https://orcid.org/0000-0003-2894-5738 https://orcid.org/0000-0003-1790-0438 en_US http://dx.doi.org/10.1002/2015gl063693 Geophysical Research Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Geophysical Union (AGU) MIT web domain |
| spellingShingle | Chen, Qi Heald, Colette L. Jimenez, Jose L. Canagaratna, Manjula R. Zhang, Qi He, Ling-Yan Huang, Xiao-Feng Campuzano-Jost, Pedro Palm, Brett B. Poulain, Laurent Kuwata, Mikinori Martin, Scot T. Abbatt, Jonathan P. D. Lee, Alex K.Y. Liggio, John Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title | Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title_full | Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title_fullStr | Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title_full_unstemmed | Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title_short | Elemental composition of organic aerosol: The gap between ambient and laboratory measurements |
| title_sort | elemental composition of organic aerosol the gap between ambient and laboratory measurements |
| url | http://hdl.handle.net/1721.1/101628 https://orcid.org/0000-0003-2894-5738 https://orcid.org/0000-0003-1790-0438 |
| work_keys_str_mv | AT chenqi elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT healdcolettel elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT jimenezjosel elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT canagaratnamanjular elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT zhangqi elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT helingyan elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT huangxiaofeng elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT campuzanojostpedro elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT palmbrettb elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT poulainlaurent elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT kuwatamikinori elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT martinscott elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT abbattjonathanpd elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT leealexky elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements AT liggiojohn elementalcompositionoforganicaerosolthegapbetweenambientandlaboratorymeasurements |