Impact of national NOx and SO2 control policies on particulate matter pollution in China

Zhao, Bin; Wang, Shuxiao; Wang, Jiandong; Fu, Joshua S.; Liu, Tonghao; Xu, Jiayu; Fu, Xiao; Hao, Jiming

doi:10.1016/j.atmosenv.2013.05.012

Cited by 213 publications

(140 citation statements)

References 18 publications

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“…The emissions of major pollutants in each city are shown in Table 1. Methods for the biogenic emissions, the volatile organic compound (VOC) speciation and the spatial and tem- poral allocation of emissions are consistent with our previous study (Zhao et al, 2013a). The spatial distributions of emissions are shown in Fig.…”

Section: Emission Inventorysupporting

confidence: 70%

Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region

et al. 2018

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Abstract. The regional transport of particulate matter with diameter less than 2.5 µm (PM 2.5 ) plays an important role in the air pollution of the Beijing-Tianjin-Hebei (BTH) region in China. However, previous studies on regional transport of PM 2.5 mainly aim at province level, which is insufficient for the development of an optimal joint PM 2.5 control strategy. In this study, we calculate PM 2.5 inflows and outflows through the administrative boundaries of three major cities in the BTH region, i.e., Beijing, Tianjin and Shijiazhuang, using the WRF (Weather Research and Forecasting model)-CMAQ (Community Multiscale Air Quality) modeling system. The monthly average inflow fluxes indicate the major directions of PM 2.5 transport. For Beijing, the PM 2.5 inflow fluxes from Zhangjiakou (in the northwest) and Baoding (in the southwest) constitute 57 % of the total in winter, and Langfang (in the southeast) and Baoding constitute 73 % in summer. Based on the net PM 2.5 fluxes and their vertical distributions, we find there are three major transport pathways in the BTH region: the northwest-southeast pathway in winter (at all levels below 1000 m), the northwestsoutheast pathway in summer (at all levels below 1000 m), and the southwest-northeast pathway in both winter and in summer (mainly at 300-1000 m). In winter, even if surface wind speeds are low, the transport at above 300 m can still be strong. Among the three pathways, the southwest-northeast happens along with PM 2.5 concentrations 30 and 55 % higher than the monthly average in winter and summer, respectively. Analysis of two heavy pollution episodes in January and July in Beijing show a much (8-16 times) stronger transport than the monthly average, emphasizing the joint air pollution control of the cities located on the transport pathways, especially during heavy pollution episodes.

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Section: Emission Inventorysupporting

confidence: 70%

Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region

et al. 2018

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“…Since 2012 SO 2 over eastern China has decreased substantially. This may reflect emission controls implemented as part of the 12 th five-year plan (Tian et al, 2013;Zhao et al, 2013), as well as cleaner coal-fired technology (Wang et al, 2015). The strong decrease in SO 2 from 2012 is mirrored in trends in CDNC over the Pacific.…”

Section: Decadal Trends In Cdnc Driven By Sulfur Fluxesmentioning

confidence: 99%

Predicting decadal trends in cloud droplet number concentration using reanalysis and satellite data

McCoy¹,

Bender²,

Grosvenor³

et al. 2017

Preprint

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“…One was the establishment of the 12th Five-Year Plan in China (2011−2015) (Tian et al 2013;Zhao et al 2013), which aimed to reduce pollution, including NOx. Even in the latest study for emission inventory during 1990−2010 , the installed denitrification devices for coal-fired power plants were discussed and assumed not in operation until 2010.…”

Section: Introductionmentioning

confidence: 99%

Turnaround of Tropospheric Nitrogen Dioxide Pollution Trends in China, Japan, and South Korea

Irie

Muto

Itahashi

et al. 2016

SOLA

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Long-term (2005Long-term ( −2015 tropospheric nitrogen dioxide (NO 2 ) column data recorded by the satellite-borne Ozone Monitoring Instrument (OMI) in East Asia were analyzed to investigate annual trends on an national basis and their potential causes. We found an evident decrease of 6% year −1 in the NO 2 level over China after 2011. The grid-basis trend analysis implies that the rapid decrease occurred on a provincial or larger spatial scale and was likely due to a nationwide action such as the widespread use of denitrification units. In Japan and South Korea, a turnaround indicating an increase was observed after 2013 and 2012, respectively. As a consequence, the tropospheric NO 2 pollution level in East Asia was found to be recovered to the 5-year-ago level in 2015.

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Impact of national NOx and SO2 control policies on particulate matter pollution in China

Cited by 213 publications

References 18 publications

Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region

Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region

Predicting decadal trends in cloud droplet number concentration using reanalysis and satellite data

Turnaround of Tropospheric Nitrogen Dioxide Pollution Trends in China, Japan, and South Korea

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