the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Impact of nitrous acid chemistry on air quality modeling results over the Pearl River Delta region
Abstract. The impact of nitrous acid chemistry on regional ozone and particulate matter in Pearl River Delta region was investigated using the Community Mutilscale Air Quality 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 nitrous acid. To improve the model performance for nitrous acid, 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 nitrous acid compared with observed data. The addition of nitrous acid sources enhance daily maximum 8-h ozone by up to 6 ppb V (8 %) and daily mean PM2.5 by up to 17 μg m−3 (12 %). They also affected ozone control strategy in Pearl River Delta region.
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RC C4557: 'Comments to the paper by Zhang et al.', Anonymous Referee #3, 08 Jun 2011
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AC C8519: 'response to anonymous referee #3 (C4557)', RUI ZHANG, 03 Sep 2011
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AC C8519: 'response to anonymous referee #3 (C4557)', RUI ZHANG, 03 Sep 2011
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RC C5120: 'Interactive comments on "Measurements of HONO during BAQS-Met" by J. J. B. Wentzell et al.', Anonymous Referee #2, 17 Jun 2011
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AC C8520: 'response to anonymous referee #2 (C5120)', RUI ZHANG, 04 Sep 2011
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AC C8520: 'response to anonymous referee #2 (C5120)', RUI ZHANG, 04 Sep 2011
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RC C6501: 'Review of Zhang et al.', Anonymous Referee #1, 18 Jul 2011
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AC C8504: 'response to anonymous referee #1 (C6501)', RUI ZHANG, 03 Sep 2011
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AC C8504: 'response to anonymous referee #1 (C6501)', RUI ZHANG, 03 Sep 2011


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RC C4557: 'Comments to the paper by Zhang et al.', Anonymous Referee #3, 08 Jun 2011
-
AC C8519: 'response to anonymous referee #3 (C4557)', RUI ZHANG, 03 Sep 2011
-
AC C8519: 'response to anonymous referee #3 (C4557)', RUI ZHANG, 03 Sep 2011
-
RC C5120: 'Interactive comments on "Measurements of HONO during BAQS-Met" by J. J. B. Wentzell et al.', Anonymous Referee #2, 17 Jun 2011
-
AC C8520: 'response to anonymous referee #2 (C5120)', RUI ZHANG, 04 Sep 2011
-
AC C8520: 'response to anonymous referee #2 (C5120)', RUI ZHANG, 04 Sep 2011
-
RC C6501: 'Review of Zhang et al.', Anonymous Referee #1, 18 Jul 2011
-
AC C8504: 'response to anonymous referee #1 (C6501)', RUI ZHANG, 03 Sep 2011
-
AC C8504: 'response to anonymous referee #1 (C6501)', RUI ZHANG, 03 Sep 2011
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Cited
4 citations as recorded by crossref.
- Source apportionment of PM2.5 nitrate and sulfate in China using a source-oriented chemical transport model H. Zhang et al. 10.1016/j.atmosenv.2012.08.014
- Development of emissions inventory and identification of sources for priority control in the middle reaches of Yangtze River Urban Agglomerations X. Sun et al. 10.1016/j.scitotenv.2017.12.103
- Modeling the effect of relative humidity on nitrous acid formation in the Houston area L. Diao et al. 10.1016/j.atmosenv.2016.01.053
- Impact of HONO on global atmospheric chemistry calculated with an empirical parameterization in the EMAC model Y. Elshorbany et al. 10.5194/acp-12-9977-2012