Search: onr:"swepub:oai:gup.ub.gu.se/269214" >
Efficient N2O5 upta...
Efficient N2O5 uptake and NO3 oxidation in the outflow of urban Beijing
-
Wang, H. C. (author)
-
Lu, K. D. (author)
-
Guo, S. (author)
-
show more...
-
Wu, Z. J. (author)
-
Shang, D. J. (author)
-
Tan, Z. F. (author)
-
Wang, Y. J. (author)
-
- Le Breton, Michael, 1986 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
-
Lou, S. R. (author)
-
Tang, M. J. (author)
-
Wu, Y. S. (author)
-
Zhu, W. F. (author)
-
Zheng, J. (author)
-
Zeng, L. M. (author)
-
- Hallquist, Mattias, 1969 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
-
Hu, M. (author)
-
Zhang, Y. H. (author)
-
show less...
-
(creator_code:org_t)
- 2018-07-10
- 2018
- English.
-
In: Atmospheric Chemistry and Physics. - : Copernicus GmbH. - 1680-7316 .- 1680-7324. ; 18:13, s. 9705-9721
- Related links:
-
https://www.atmos-ch...
-
show more...
-
https://gup.ub.gu.se...
-
https://doi.org/10.5...
-
show less...
Abstract
Subject headings
Close
- Nocturnal reactive nitrogen compounds play an important role in regional air pollution. Here we present the measurements of dinitrogen pentoxide (N2O5) associated with nitryl chloride (ClNO2) and particulate nitrate (pNO(3)(-)) at a suburban site of Beijing in the summer of 2016. High levels of N2O5 and ClNO2 were observed in the outflow of the urban Beijing air masses, with 1 min average maxima of 937 and 2900 pptv, respectively. The N2O5 uptake coefficients, gamma, and ClNO2 yield, f, were experimentally determined from the observed parameters. The N2O5 uptake coefficient ranged from 0.012 to 0.055, with an average of 0.034 +/- 0.018, which is in the upper range of previous field studies reported in North America and Europe but is a moderate value in the North China Plain (NCP), which reflects efficient N2O5 heterogeneous processes in Beijing. The ClNO2 yield exhibited high variability, with a range of 0.50 to unity and an average of 0.73 +/- 0.25. The concentration of the nitrate radical (NO3) was calculated assuming that the thermal equilibrium between NO3 and N2O5 was maintained. In NOx-rich air masses, the oxidation of nocturnal biogenic volatile organic compounds (BVOCs) was dominated by NO3 rather than O-3. The production rate of organic nitrate (ON) via NO3 + BVOCs was significant, with an average of 0.10 +/- 0.07 ppbvh(-1). We highlight the importance of NO3 oxidation of VOCs in the formation of ON and subsequent secondary organic aerosols in summer in Beijing.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- 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)
Keyword
- volatile organic-compounds
- marine boundary-layer
- north china plain
- wrf-chem model
- nitryl chloride
- dinitrogen pentoxide
- nighttime
- chemistry
- heterogeneous hydrolysis
- uptake coefficients
- mass-spectrometer
- Meteorology & Atmospheric Sciences
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Wang, H. C.
-
Lu, K. D.
-
Guo, S.
-
Wu, Z. J.
-
Shang, D. J.
-
Tan, Z. F.
-
show more...
-
Wang, Y. J.
-
Le Breton, Micha ...
-
Lou, S. R.
-
Tang, M. J.
-
Wu, Y. S.
-
Zhu, W. F.
-
Zheng, J.
-
Zeng, L. M.
-
Hallquist, Matti ...
-
Hu, M.
-
Zhang, Y. H.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Environmental Sc ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Physical Chemist ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Analytical Chemi ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Climate Research
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Meteorology and ...
- Articles in the publication
-
Atmospheric Chem ...
- By the university
-
University of Gothenburg