Procuring the regional urbanization and industrialization effect on ozone pollution in Pearl River Delta of Guangdong, China

Zhang, Y.N.; Xiang, Yunrong; Chan, Ling-Yau; Chan, Chung Yee Zenobia; Sang, Xue-Fang; Wang, R.; Fu, Honglei

doi:10.1016/j.atmosenv.2011.06.013

Cited by 42 publications

(27 citation statements)

References 14 publications

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“…The PRD RAQMN data has been supported for a number of studies (e.g., Zheng et al, 2010;Zhang et al, 2011;Zheng et al, 2011a) of which photochemical smog caught most researchers' interests including a two-year study (2006)(2007) of the ground-level O 3 in the PRD (Zheng et al, 2010). Similar findings as above such as the O 3 peaks found in autumn and lower O 3 concentrations in urban areas were obtained.…”

Section: Other Findings and Applications Of The Network Measurementssupporting

confidence: 74%

“…For example, the effect of reducing SO 2 emissions in the 11 th FYP was well reflected in the monitoring data. On the other hand, in China, study and report on O 3 pollution before 2000 was scarce and there were only some studies taken in 2000 and 2004 (Zhang et al, 2011). Since the inception of the PRD RAQMN, O 3 data have become available and provided valuable data for the study of regional photochemical pollution.…”

Section: Roles and Significance Of The Prd Raqmnmentioning

confidence: 99%

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The Pearl River Delta Regional Air Quality Monitoring Network - Regional Collaborative Efforts on Joint Air Quality Management

Zhong

Louie²,

Zheng

et al. 2013

Aerosol Air Qual. Res.

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In November 2005 the Guangdong and Hong Kong governments established the Pearl River Delta regional air quality monitoring network ("PRD RAQMN"), which represented the first joint regional air pollution and reporting effort in this rapidly developing and heavy-polluted area in southern China. This project has recorded the air quality trends during the 11 th Five-Year Plan (FYP), implemented between 2006 and 2010, and will continue to do so throughout the period of economic development and stringent emission control of coal-fired power plants and vehicles that are part of the 12 th FYP, to be implemented between 2011 and 2015. The PRD RAQMN serves as a role model for cooperation among local administrative authorities, as well as for the joint prevention and management of air pollution. The PRD RAQMN demonstrates that regional collaboration is critical to address the air pollution problems that China faces in a more effective manner.

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Section: Other Findings and Applications Of The Network Measurementssupporting

confidence: 74%

Section: Roles and Significance Of The Prd Raqmnmentioning

confidence: 99%

The Pearl River Delta Regional Air Quality Monitoring Network - Regional Collaborative Efforts on Joint Air Quality Management

Zhong

Louie²,

Zheng

et al. 2013

Aerosol Air Qual. Res.

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“…As the most urbanized and industrialized part of South China, PRD has become the largest metropolitan area in the world within a very short time (Word Bank Group, 2015). Thus, many previous studies have tried to identify the effects of urbanization on urban climate and air quality in this region (Lo et al, 2007;Wang et al, 2007;Lu et al, 2010;Meng et al, 2011;Wu et al, 2011;Zhang et al, 2011;Feng et al, 2012Feng et al, , 2014Chen et al, 2014b;Li et al, 2014Li et al, , 2016. Among these studies, most researchers merely investigated how the expansion of urban land use influences meteorology processes (Lo et al, 2007;Wang et al, 2007;Lu et al, 2010;Meng et al, 2011;Wu et al, 2011;Feng et al, 2012;Chen et al, 2014b;.…”

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confidence: 99%

Changes in regional meteorology induced by anthropogenic heat and their impacts on air quality in South China

et al. 2016

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Abstract. Anthropogenic heat (AH) emissions from human activities can change the urban circulation and thereby affect the air pollution in and around cities. Based on statistic data, the spatial distribution of AH flux in South China is estimated. With the aid of the Weather Research and Forecasting model coupled with Chemistry (WRF/Chem), in which the AH parameterization is developed to incorporate the gridded AH emissions with temporal variation, simulations for January and July in 2014 are performed over South China. By analyzing the differences between the simulations with and without adding AH, the impact of AH on regional meteorology and air quality is quantified. The results show that the regional annual mean AH fluxes over South China are only 0.87 W m −2 , but the values for the urban areas of the Pearl River Delta (PRD) region can be close to 60 W m −2 . These AH emissions can significantly change the urban heat island and urban-breeze circulations in big cities. In the PRD city cluster, 2 m air temperature rises by 1.1 • in January and over 0.5 • in July, the planetary boundary layer height (PBLH) increases by 120 m in January and 90 m in July, 10 m wind speed is intensified to over 0.35 m s −1 in January and 0.3 m s −1 in July, and accumulative precipitation is enhanced by 20-40 % in July. These changes in meteorological conditions can significantly impact the spatial and vertical distributions of air pollutants. Due to the increases in PBLH, surface wind speed and upward vertical movement, the concentrations of primary air pollutants decrease near the surface and increase in the upper levels. But the vertical changes in O 3 concentrations show the different patterns in different seasons. The surface O 3 concentrations in big cities increase with maximum values of over 2.5 ppb in January, while O 3 is reduced at the lower layers and increases at the upper layers above some megacities in July. This phenomenon can be attributed to the fact that chemical effects can play a significant role in O 3 changes over South China in winter, while the vertical movement can be the dominant effect in some big cities in summer. Adding the gridded AH emissions can better describe the heterogeneous impacts of AH on regional meteorology and air quality, suggesting that more studies on AH should be carried out in climate and air quality assessments.

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“…Previous studies had shown that WQS was a regional site and could be highly influenced by regional pollutant transport in winter (Zhang et al 2011). In this study, the wind speeds during the three periods were 0.4-6.…”

Section: Effect Of Upwind Pollutant Transportmentioning

confidence: 70%

Characteristics, loss and gain of atmospheric carbonyl compounds in winters of 2008–2010 in Pearl River Delta region, China

Liu

Чан

et al. 2013

J Atmos Chem

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Formaldehyde (HCHO), acetaldehyde (CH 3 CHO) and acetone (CH 3 In 2010, the recovery of industrial activities occurred, but affected by traffic restriction enforcement in Guangzhou over the Asian Games period, HCHO concentration (daytime 7.59±2.59 μg m −3 ) was lower than expectation. Carbonyl compounds in WQS site were highly influenced by regional pollution transport from different upwind urban cities and industrial districts in the north-northwest to northeast wind sector in winter. Also, the interaction of the winter monsoon with the warm ocean along the coastline as well as day and night boundary layer mixing height variation affected carbonyl compound concentrations in WQS. The daytime mean dry deposition losses of HCHO and CH 3 CHO were first time model-estimated for 2009 and 2010. For loss of HCHO in the early afternoon, photolysis was the dominant sink, followed by dry deposition and removal by OH radical J Atmos Chem (2013) COCH

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Procuring the regional urbanization and industrialization effect on ozone pollution in Pearl River Delta of Guangdong, China

Cited by 42 publications

References 14 publications

The Pearl River Delta Regional Air Quality Monitoring Network - Regional Collaborative Efforts on Joint Air Quality Management

The Pearl River Delta Regional Air Quality Monitoring Network - Regional Collaborative Efforts on Joint Air Quality Management

Changes in regional meteorology induced by anthropogenic heat and their impacts on air quality in South China

Characteristics, loss and gain of atmospheric carbonyl compounds in winters of 2008–2010 in Pearl River Delta region, China

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