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Discussion papers
https://doi.org/10.5194/acp-2018-1191
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-1191
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 23 Nov 2018

Research article | 23 Nov 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Effects of air pollution control policies on PM2.5 pollution improvement in China from 2005 to 2017: a satellite based perspective

Zongwei Ma1, Riyang Liu1, Yang Liu2, and Jun Bi1,3 Zongwei Ma et al.
  • 1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
  • 2Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
  • 3Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China

Abstract. Understanding the effectiveness of air pollution control policies is important for future policy making. China implemented strict air pollution control polices since 11th Five Year Plan (FYP). There is still a lack of overall evaluation of the effects of air pollution control policies on PM2.5 pollution improvement in China since FYP. In this study, we aimed to assess the effects of air pollution control policies from 2005 to 2017 on PM2.5 from the view of satellite remote sensing. We used the satellite derived PM2.5 of 2005–2013 from one of our previous studies. For the data of 2014–2017, we developed a two-stage statistical model to retrieve satellite PM2.5 data. Results show that the Energy Conservation and Emissions Reduction (ECER) policy, implemented in 11th FYP period and focused on SO2 emissions control, had co-benefits on PM2.5 reductions. The increasing trends of PM2.5 pollutions was suppressed after 2007, and the PM2.5 in Central and South China showed significant decreasing trends. The ECER policy during 12th FYP period were basically the extension of 11th FYP policy. However, the emissions control oriented policies reached it bottleneck. The PM2.5 concentrations did not decrease from 2010 to 2013 in polluted areas. China implemented two stricter policies: 12th FYP on Air Pollution Prevention and Control in Key Regions (APPC-KR) in 2012, and Action Plan of Air Pollution Prevention and Control (APPC-AP) in 2013. The goal of air quality improvement (especially PM2.5 concentration improvement) was proposed for the first time. The air quality improvement oriented polices had led to dramatic decreases of PM2.5 after 2013.

Zongwei Ma et al.
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Status: open (until 18 Jan 2019)
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