Assessment of the health benefits of declining PM2.5 levels in the Yangtze River Delta
WEI Tong1,2, LI Zheng-lei2, CHEN Yu3, ZHAO Xiu-ge2, WANG Dan-lu2, HOU Ya-xuan2, LIU Fen1
1. Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing 100069, China; 2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; 3. Chinese Society For Environmental Sciences, Beijing 100082, China
Abstract:The aim of this study was to evaluate the health and economic benefits of PM2.5 emission reduction for residents in the Yangtze River Delta (YRD) region. Based on the time-weighted PM2.5 exposure levels, the decreasing trend in PM2.5 exposure of residents in the YRD region from 2011 to 2019, and its health and economic synergies, were analyzed using an integrated exposure-response model and the willingness-to-pay method. The results showed that, from 2011 to 2019, the PM2.5 exposure level in the YRD region decreased by 17.03% from 45.06μg/m3 to 37.39μg/m3. Meanwhile, the number of premature deaths attributable to PM2.5 exposure decreased by 24.65% from 139, 962 (95% confidence interval [CI]: 87306~192619) to 105461 (95% CI: 66306~14416). According to the interannual variation-based sensitivity analysis, the number of premature deaths attributed to PM2.5 exposure showed a downward trend year by year after the implementation of relevant policies in 2012, with cumulative benefits of 4.055 billion dollars. These data indicate the effectiveness of various PM2.5 emission reduction actions in China. Since 2018, the annual economic benefits of PM2.5 emission reduction have decreased. Therefore, while reducing carbon emissions, it is necessary to continue to strengthen the control of pollution reduction to reduce attributable deaths and economic loss.
魏彤, 李政蕾, 陈昱, 赵秀阁, 王丹璐, 侯雅宣, 刘芬. 长三角居民PM2.5暴露水平下降的健康效益评估[J]. 中国环境科学, 2023, 43(6): 3211-3219.
WEI Tong, LI Zheng-lei, CHEN Yu, ZHAO Xiu-ge, WANG Dan-lu, HOU Ya-xuan, LIU Fen. Assessment of the health benefits of declining PM2.5 levels in the Yangtze River Delta. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(6): 3211-3219.
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