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)
Published by the Royal Society. All rights reserved.
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Volume 473, issue 2205
Keywords
- Article
- 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
- Data accessibility
- Authors' contributions
- Competing interests
- Funding
- Acknowledgements
- Footnotes
- References
- Figures & Data
- Info & Metrics
- eLetters
- Review History
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