Examining the Impact of Nitrous Acid Chemistry on Ozone and PM over the Pearl River Delta Region
Joint Authors
Sarwar, Golam
Zhang, Yuanhang
Fung, Jimmy C. H.
Lau, Alexis K. H.
Zhang, Rui
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-03
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
The impact of nitrous acid (HONO) chemistry on regional ozone and particulate matter in Pearl River Delta region was investigated using the community multiscale air quality (CMAQ) modeling system and the CB05 mechanism.
Model simulations were conducted for a ten-day period in October 2004.
Compared with available observed data, the model performance for NOx, SO2, PM10, and sulfate is reasonably good; however, predictions of HONO are an order of magnitude lower than observed data.
The CB05 mechanism contains several homogenous reactions related to HONO.
To improve the model performance for HONO, direct emissions, two heterogeneous reactions, and two surface photolysis reactions were incorporated into the model.
The inclusion of the additional formation pathways significantly improved simulated HONO compared with observed data.
The addition of HONO sources enhances daily maximum 8-hour ozone by up to 6 ppbV (8%) and daily mean PM2.5 by up to 17 ug/m3 (12%).
They also affected ozone control strategy in Pearl River Delta region.
American Psychological Association (APA)
Zhang, Rui& Sarwar, Golam& Fung, Jimmy C. H.& Lau, Alexis K. H.& Zhang, Yuanhang. 2012. Examining the Impact of Nitrous Acid Chemistry on Ozone and PM over the Pearl River Delta Region. Advances in Meteorology،Vol. 2012, no. 2012, pp.1-18.
https://search.emarefa.net/detail/BIM-448996
Modern Language Association (MLA)
Zhang, Rui…[et al.]. Examining the Impact of Nitrous Acid Chemistry on Ozone and PM over the Pearl River Delta Region. Advances in Meteorology No. 2012 (2012), pp.1-18.
https://search.emarefa.net/detail/BIM-448996
American Medical Association (AMA)
Zhang, Rui& Sarwar, Golam& Fung, Jimmy C. H.& Lau, Alexis K. H.& Zhang, Yuanhang. Examining the Impact of Nitrous Acid Chemistry on Ozone and PM over the Pearl River Delta Region. Advances in Meteorology. 2012. Vol. 2012, no. 2012, pp.1-18.
https://search.emarefa.net/detail/BIM-448996
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448996