Numerical study on uncertainty in air quality modeling over Pearl River Delta region : impact from emission, chemical and physical parameterization

2010 ◽  
Author(s):  
Rui Zhang
Keyword(s):  
Air Quality ◽  
Pearl River Delta ◽  
Numerical Study ◽  
Air Quality Modeling ◽  
River Delta ◽  
Pearl River ◽  
Pearl River Delta Region ◽  
Delta Region ◽  
Quality Modeling ◽  
Physical Parameterization

scholarly journals Impact of nitrous acid chemistry on air quality modeling results over the Pearl River Delta region

2011 ◽  
Vol 11 (5) ◽  
pp. 15075-15117 ◽  
Author(s):  
R. Zhang ◽  
G. Sarwar ◽  
J. C. H. Fung ◽  
A. K. H. Lau ◽  
Y. Zhang
Keyword(s):  
Air Quality ◽  
Nitrous Acid ◽  
Pearl River Delta ◽  
Model Performance ◽  
Air Quality Modeling ◽  
River Delta ◽  
Pearl River ◽  
Pearl River Delta Region ◽  
Delta Region ◽  
Quality Modeling

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.

Assessing the impacts of seasonal and vertical atmospheric conditions on air quality over the Pearl River Delta region

2018 ◽  
Vol 180 ◽  
pp. 69-78 ◽  
Author(s):  
Cheuk Hei Marcus Tong ◽  
Steve Hung Lam Yim ◽  
Daniel Rothenberg ◽  
Chien Wang ◽  
Chuan-Yao Lin ◽  
...  
Keyword(s):  
Air Quality ◽  
Pearl River Delta ◽  
River Delta ◽  
Pearl River ◽  
Atmospheric Conditions ◽  
Pearl River Delta Region ◽  
Delta Region ◽  
The Pearl River Delta ◽  
The Pearl River

An evaluation of air quality modeling over the Pearl River Delta during November 2006

2012 ◽  
Vol 116 (3-4) ◽  
pp. 113-132 ◽  
Author(s):  
Qizhong Wu ◽  
Zifa Wang ◽  
Huansheng Chen ◽  
Wen Zhou ◽  
Mark Wenig
Keyword(s):  
Air Quality ◽  
Pearl River Delta ◽  
Air Quality Modeling ◽  
River Delta ◽  
Pearl River ◽  
The Pearl River Delta ◽  
Quality Modeling ◽  
The Pearl River

Projecting the impacts of atmospheric conditions under climate change on air quality over the Pearl River Delta region

2018 ◽  
Vol 193 ◽  
pp. 79-87 ◽  
Author(s):  
Cheuk Hei Marcus Tong ◽  
Steve Hung Lam Yim ◽  
Daniel Rothenberg ◽  
Chien Wang ◽  
Chuan-Yao Lin ◽  
...  
Keyword(s):  
Climate Change ◽  
Air Quality ◽  
Pearl River Delta ◽  
River Delta ◽  
Pearl River ◽  
Atmospheric Conditions ◽  
Pearl River Delta Region ◽  
Delta Region ◽  
The Pearl River Delta ◽  
The Pearl River

scholarly journals Air quality in the main cities of the Pearl River Delta Region

2016 ◽  
Vol 18 (4) ◽  
pp. 794-802 ◽  
Keyword(s):  
Air Quality ◽  
Pearl River Delta ◽  
Ambient Air ◽  
River Delta ◽  
Current Status ◽  
Pearl River ◽  
Pearl River Delta Region ◽  
Delta Region ◽  
The Pearl River Delta ◽  
The Pearl River

<div> <p>In this study current status of the ambient air quality in the main cities of the Pearl River Delta region was investigated. Two special administrative regions (Macau and Hong Kong) and three major cities of Guangdong (Guangzhou, Dongguan and Foshan) were selected for analysis according to their geographical distribution, population, gross domestic product and industrial importance. The air quality of each city was diagnosed by using the monitoring data of 2014 and by applying the HYSPLIT model. The region is affected by transboundary pollution outside the delta area but the local emissions are the most important. The Asian Monsoon system also influences the air masses transport pattern.</p> </div> <p>&nbsp;</p>

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