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Parameterized Yields of Semivolatile Products from Isoprene Oxidation under Different NOx Levels: Impacts of Chemical Aging and Wall-Loss of Reactive Gases

Xing, Li ; Shrivastava, Manish ; Fu, Tzung-May ; Roldin, Pontus LU ; Qian, Yun ; Ng, Nga L. ; Shilling, John ; Zelenyuk, Alla and Cappa, Christopher D (2018) In Environmental Science & Technology 52(16). p.9225-9234
Abstract
We developed a parametrizable box model to empirically derive the yields of semivolatile products from VOC oxidation using chamber measurements, while explicitly accounting for the multigenerational chemical aging processes (such as the gas-phase fragmentation and functionalization and aerosol-phase oligomerization and photolysis) under different NOx levels and the loss of particles and gases to chamber walls. Using the oxidation of isoprene as an example, we showed that the assumptions regarding the NOx-sensitive, multigenerational aging processes of VOC oxidation products have large impacts on the parametrized product yields and SOA formation. We derived sets of semivolatile product yields from isoprene oxidation under different NOx... (More)
We developed a parametrizable box model to empirically derive the yields of semivolatile products from VOC oxidation using chamber measurements, while explicitly accounting for the multigenerational chemical aging processes (such as the gas-phase fragmentation and functionalization and aerosol-phase oligomerization and photolysis) under different NOx levels and the loss of particles and gases to chamber walls. Using the oxidation of isoprene as an example, we showed that the assumptions regarding the NOx-sensitive, multigenerational aging processes of VOC oxidation products have large impacts on the parametrized product yields and SOA formation. We derived sets of semivolatile product yields from isoprene oxidation under different NOx levels. However, we stress that these product yields must be used in conjunction with the corresponding multigenerational aging schemes in chemical transport models. As more mechanistic insights regarding SOA formation from VOC oxidation emerge, our box model can be expanded to include more explicit chemical aging processes and help ultimately bridge the gap between the process-based understanding of SOA formation from VOC oxidation and the bulk-yield parametrizations used in chemical transport models (Less)
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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Science & Technology
volume
52
issue
16
pages
9225 - 9234
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85050596386
  • pmid:30028598
ISSN
1520-5851
DOI
10.1021/acs.est.8b00373
language
English
LU publication?
yes
id
02e4a877-896f-4562-8383-30e5cf247b46
date added to LUP
2019-05-15 09:45:25
date last changed
2020-04-29 13:31:35
@article{02e4a877-896f-4562-8383-30e5cf247b46,
  abstract     = {We developed a parametrizable box model to empirically derive the yields of semivolatile products from VOC oxidation using chamber measurements, while explicitly accounting for the multigenerational chemical aging processes (such as the gas-phase fragmentation and functionalization and aerosol-phase oligomerization and photolysis) under different NOx levels and the loss of particles and gases to chamber walls. Using the oxidation of isoprene as an example, we showed that the assumptions regarding the NOx-sensitive, multigenerational aging processes of VOC oxidation products have large impacts on the parametrized product yields and SOA formation. We derived sets of semivolatile product yields from isoprene oxidation under different NOx levels. However, we stress that these product yields must be used in conjunction with the corresponding multigenerational aging schemes in chemical transport models. As more mechanistic insights regarding SOA formation from VOC oxidation emerge, our box model can be expanded to include more explicit chemical aging processes and help ultimately bridge the gap between the process-based understanding of SOA formation from VOC oxidation and the bulk-yield parametrizations used in chemical transport models},
  author       = {Xing, Li and Shrivastava, Manish and Fu, Tzung-May and Roldin, Pontus and Qian, Yun and Ng, Nga L. and Shilling, John and Zelenyuk, Alla and Cappa, Christopher D},
  issn         = {1520-5851},
  language     = {eng},
  month        = {07},
  number       = {16},
  pages        = {9225--9234},
  publisher    = {The American Chemical Society (ACS)},
  series       = {Environmental Science & Technology},
  title        = {Parameterized Yields of Semivolatile Products from Isoprene Oxidation under Different NOx Levels: Impacts of Chemical Aging and Wall-Loss of Reactive Gases},
  url          = {http://dx.doi.org/10.1021/acs.est.8b00373},
  doi          = {10.1021/acs.est.8b00373},
  volume       = {52},
  year         = {2018},
}