A Health Impact and Economic Loss Assessment of O3 and PM2.5 Exposure in China From 2015 to 2020

Xiangxue Zhang; Changxiu Cheng; Hui Zhao

doi:10.1029/2021GH000531

A Health Impact and Economic Loss Assessment of O₃ and PM_2.5 Exposure in China From 2015 to 2020

Geohealth. 2022 Mar 1;6(3):e2021GH000531. doi: 10.1029/2021GH000531. eCollection 2022 Mar.

Authors

Xiangxue Zhang^{1

2}, Changxiu Cheng^{1

2

3}, Hui Zhao⁴

Affiliations

¹ State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing China.
² Key Laboratory of Environmental Change and Natural Disaster Ministry of Education Beijing Normal University Beijing China.
³ National Tibetan Plateau Data Center Beijing China.
⁴ Department of Environmental Science and Engineering Fudan University Shanghai China.

Abstract

China is in a critical air quality management stage. Rapid industrial development and urbanization has resulted in non-ignorable air pollution, which seriously endangers human health. Assessment of the health impacts and economic losses of air pollution is essential for the prevention and control policy formulation. Based on ozone (O₃) and fine particulate matter concentration (PM_2.5) monitoring data in 331 Chinese cities from 2015 to 2020, this study evaluated the health effects and the corresponding economic losses of O₃ and PM_2.5 pollution on three health endpoints. The ratio of population exposed to O₃ levels that exceeded the Chinese Ambient Air Quality Standards (CAAQS) increased from 13.35% in 2015 to 14.15% in 2020, which resulted in 133,415 (2015) - 156,173 (2020) all-cause deaths, 88,941 (2015) - 104,051 (2020) cardiovascular deaths, and 28,614 (2015) - 33,456 (2020) respiratory deaths. The ratio of population exposed to PM_2.5 levels that exceeded the CAAQS decreased, but in many regions, especially in North China and the Yangtze River Delta, the PM_2.5 concentration remained high. By 2020, nearly half of the population in China was still exposed to PM_2.5 levels that exceeded the CAAQS, and the corresponding economic losses reached CNY 3.46 and 3.05 billion, respectively. These results improved the understanding of the spatial-temporal variation trends of major air pollutants at city scale in China, and emphasize the continued coordination urgently needed for controlling O₃ and PM_2.5 following the implementation of the 2013 policy to mitigate air pollution to protect human health.

Keywords: air pollution; economic loss; health risk; population exposure; spatial‐temporal variation trends.