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A Four Carbon Organ...
A Four Carbon Organonitrate as a Significant Product of Secondary Isoprene Chemistry
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- Tsiligiannis, Epameinondas (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
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Wu, R. R. (author)
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Lee, B. (author)
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- Salvador, Christian Mark, 1989 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
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- Priestley, Michael (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
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Carlsson, P. T. M. (author)
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Kang, S. (author)
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Novelli, A. (author)
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Vereecken, L. (author)
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Fuchs, H. (author)
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Mayhew, A. W. (author)
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Hamilton, J. F. (author)
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Edwards, P. M. (author)
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Fry, J. L. (author)
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Brownwood, B. (author)
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Brown, S. S. (author)
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Wild, R. J. (author)
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Bannan, T. J. (author)
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Coe, H. (author)
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Allan, J. (author)
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Surratt, J. D. (author)
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Bacak, A. (author)
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Artaxo, P. (author)
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Percival, C. (author)
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Guo, S. (author)
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Hu, M. (author)
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Wang, T. (author)
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Mentel, T. F. (author)
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Thornton, J. A. (author)
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- Hallquist, Mattias, 1969 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
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(creator_code:org_t)
- 2022-05-26
- 2022
- English.
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In: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 49:11
- Related links:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
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- Oxidation of isoprene by nitrate radicals (NO3) or by hydroxyl radicals (OH) under high NOx conditions forms a substantial amount of organonitrates (ONs). ONs impact NOx concentrations and consequently ozone formation while also contributing to secondary organic aerosol. Here we show that the ONs with the chemical formula C4H7NO5 are a significant fraction of isoprene-derived ONs, based on chamber experiments and ambient measurements from different sites around the globe. From chamber experiments we found that C4H7NO5 isomers contribute 5%-17% of all measured ONs formed during nighttime and constitute more than 40% of the measured ONs after further daytime oxidation. In ambient measurements C4H7NO5 isomers usually dominate both nighttime and daytime, implying a long residence time compared to C-5 ONs which are removed more rapidly. We propose potential nighttime sources and secondary formation pathways, and test them using a box model with an updated isoprene oxidation scheme.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Keyword
- organonitrate
- isoprene
- VOC oxidation
- atmospheric chamber
- organic aerosol soa
- ionization mass-spectrometry
- methyl vinyl ketone
- gas-phase reactions
- no3-initiated oxidation
- tropospheric degradation
- molecular composition
- peroxy-radicals
- surface ozone
- iodide cims
- Geology
Publication and Content Type
- ref (subject category)
- art (subject category)
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Tsiligiannis, Ep ...
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Wu, R. R.
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Lee, B.
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Salvador, Christ ...
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Priestley, Micha ...
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Carlsson, P. T. ...
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show more...
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Kang, S.
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Novelli, A.
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Vereecken, L.
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Fuchs, H.
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Mayhew, A. W.
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Hamilton, J. F.
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Edwards, P. M.
-
Fry, J. L.
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Brownwood, B.
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Brown, S. S.
-
Wild, R. J.
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Bannan, T. J.
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Coe, H.
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Allan, J.
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Surratt, J. D.
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Bacak, A.
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Artaxo, P.
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Percival, C.
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Guo, S.
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Hu, M.
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Wang, T.
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Mentel, T. F.
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Thornton, J. A.
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Hallquist, Matti ...
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