Threshold Effects of PM 2.5 Exposure on Particle-Related Mortality in China

Bao-Linh Tran, Ching-Cheng Chang, Chia-Sheng Hsu, Chi-Chung Chen, Wei-Chun Tseng and Shih-Hsun Hsu
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Bao-Linh Tran: Department of Applied Economics, National Chung Hsing University, Taichung 402, Taiwan
Ching-Cheng Chang: Institute of Economics, Academia Sinica, Taipei 11529, Taiwan
Chia-Sheng Hsu: Institute of Economics, Academia Sinica, Taipei 11529, Taiwan
Chi-Chung Chen: Department of Applied Economics, National Chung Hsing University, Taichung 402, Taiwan
Wei-Chun Tseng: Department of Applied Economics, National Chung Hsing University, Taichung 402, Taiwan
Shih-Hsun Hsu: Department of Agricultural Economics, National Taiwan University, Taipei 10617, Taiwan

IJERPH, 2019, vol. 16, issue 19, 1-18

Abstract: Ambient air pollution from energy use and other sources is a major environmental risk factor in the incidence and progression of serious diseases, such as cardiovascular and respiratory diseases. This study elucidates the health effects of energy consumption from air pollution in China based on multiple threshold effects of the population-weighted exposure to PM 2.5 (fine particles less than 2.5 microns in diameter) on particle-related mortality rate. We firstly estimate the causal relationship between coal consumption and PM 2.5 in China for 2004–2010 using a panel regression model. Panel threshold models are applied to access the non-linear relationships between PM 2.5 and cause-specific mortality rates that indicate the health effects are dependent on the PM 2.5 ranges. By combining these steps, we calculate the health impacts of coal consumption based on threshold effects of PM 2.5 . We find that a 1% coal consumption increase induces a 0.23% increase in PM 2.5 . A triple threshold effect is found between PM 2.5 and cardiovascular mortality; for example, increasing PM 2.5 exposure causes cardiovascular mortality rate to increase when PM 2.5 lies in 17.7–21.6 μg/m 3 and 21.6–34.3 μg/m 3 , with the estimated increments being 0.81% and 0.26%, respectively, corresponding to 1% PM 2.5 increase. A single threshold effect of SO 2 on respiratory mortality rate is identified and allows the estimation of the mortality effects of PM 2.5 regarding the two regimes of SO 2 . Finally, we access the health impacts of coal consumption under specific estimated thresholds. This study provides a better understanding of sources contributing to related-air pollution mortality. The multi-threshold effect of PM 2.5 could be considered for further applications in harmonizing emission standards in China and other developing countries.

Keywords: air pollution; energy consumption; population-weighted PM 2.5 exposure; cardiovascular mortality; respiratory mortality; panel threshold model (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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