Parameterized Yields of Semivolatile Products from Isoprene Oxidation under Different NOx Levels: Impacts of Chemical Aging and Wall-Loss of Reactive Gases
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/02e4a877-896f-4562-8383-30e5cf247b46
- author
- Xing, Li ; Shrivastava, Manish ; Fu, Tzung-May ; Roldin, Pontus LU ; Qian, Yun ; Ng, Nga L. ; Shilling, John ; Zelenyuk, Alla and Cappa, Christopher D
- organization
- publishing date
- 2018-07-20
- 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
- 2022-01-31 20:00:58
@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}}, }