Cautionary tales on air-quality improvement in Beijing

Author:

Zhang Shuyi1,Guo Bin23,Dong Anlan4,He Jing3,Xu Ziping5,Chen Song Xi14ORCID

Affiliation:

1. Guanghua School of Management, Peking University, Beijing 100871, People's Republic of China

2. Center of Statistical Research, Southwestern University of Finance and Economics, Chengdu 611130, People's Republic of China

3. School of Statistics, Southwestern University of Finance and Economics, Chengdu 611130, People's Republic of China

4. Center for Statistical Science, Peking University, Beijing 100871, People's Republic of China

5. Yuanpei College, Peking University, Beijing 100871, People's Republic of China

Abstract

The official air-quality statistic reported that Beijing had a 9.9% decline in the annual concentration of PM 2.5 in 2016. While this statistic offered some relief for the inhabitants of the capital, we present several analyses based on Beijing's PM 2.5 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 PM 2.5 situation in the past 4 years.

Funder

National Key Research Program of China

Publisher

The Royal Society

Subject

General Physics and Astronomy,General Engineering,General Mathematics

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