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Cautionary tales on air-quality improvement in Beijing

Shuyi Zhang, Bin Guo, Anlan Dong, Jing He, Ziping Xu, Song Xi Chen
Published 20 September 2017.DOI: 10.1098/rspa.2017.0457
Shuyi Zhang
Guanghua School of Management, Peking University, Beijing 100871, People's Republic of China
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Bin Guo
Center of Statistical Research, Southwestern University of Finance and Economics, Chengdu 611130, People's Republic of ChinaSchool of Statistics, Southwestern University of Finance and Economics, Chengdu 611130, People's Republic of China
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  • For correspondence: guobin@swufe.edu.cn
Anlan Dong
Center for Statistical Science, Peking University, Beijing 100871, People's Republic of China
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Jing He
School of Statistics, Southwestern University of Finance and Economics, Chengdu 611130, People's Republic of China
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Ziping Xu
Yuanpei College, Peking University, Beijing 100871, People's Republic of China
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Song Xi Chen
Guanghua School of Management, Peking University, Beijing 100871, People's Republic of ChinaCenter for Statistical Science, Peking University, Beijing 100871, People's Republic of China
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  • ORCID record for Song Xi Chen
  • For correspondence: csx@gsm.pku.edu.cn
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Abstract

The official air-quality statistic reported that Beijing had a 9.9% decline in the annual concentration of PM2.5 in 2016. While this statistic offered some relief for the inhabitants of the capital, we present several analyses based on Beijing's PM2.5 data of the past 4 years at 36 monitoring sites along with meteorological data of the past 7 years. The analyses reveal the air pollution situation in 2016 was not as rosy as the 9.9% decline would convey, and improvement if any was rather uncertain. The paper also provides an assessment on the city's PM2.5 situation in the past 4 years.

Footnotes

  • Electronic supplementary material is available online at https://dx.doi.org/10.6084/m9.figshare.c.3865483.

  • Received June 29, 2017.
  • Accepted August 11, 2017.
  • © 2017 The Author(s)
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September 2017
Volume 473
, issue 2205
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Science: 473 (2205)
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Keywords

air-quality assessment
meteorological confounding
observational study
spatial–temporal adjustment
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Cautionary tales on air-quality improvement in Beijing
Shuyi Zhang, Bin Guo, Anlan Dong, Jing He, Ziping Xu, Song Xi Chen
Proc. R. Soc. A 2017 473 20170457; DOI: 10.1098/rspa.2017.0457. Published 20 September 2017
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Cautionary tales on air-quality improvement in Beijing

Shuyi Zhang, Bin Guo, Anlan Dong, Jing He, Ziping Xu, Song Xi Chen
Proc. R. Soc. A 2017 473 20170457; DOI: 10.1098/rspa.2017.0457. Published 20 September 2017

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    • Abstract
    • 1. Introduction
    • 2. Data
    • 3. Meteorological variation and need for adjustment
    • 4. Spatially and temporally meteorological adjustment
    • 5. Prognosis of PM2.5 concentration from 2013 to 2016
    • 6. Situation in 2016
    • 7. Discussion
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