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The long-term trend of PM2.5-related mortality in China: The effects of source data selection.
Xiao, Qingyang; Liang, Fengchao; Ning, Miao; Zhang, Qiang; Bi, Jianzhao; He, Kebin; Lei, Yu; Liu, Yang.
Afiliación
  • Xiao Q; State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China.
  • Liang F; Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, ChineseAcademy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
  • Ning M; Atmospheric Environment Institute, Chinese Academy of Environmental Planning, Beijing, 100012, China.
  • Zhang Q; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China.
  • Bi J; Rollins School of Public Health, Emory University, Atlanta, 30032, USA.
  • He K; State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China.
  • Lei Y; Atmospheric Environment Institute, Chinese Academy of Environmental Planning, Beijing, 100012, China. Electronic address: leiyu@caep.org.cn.
  • Liu Y; Rollins School of Public Health, Emory University, Atlanta, 30032, USA; State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China. Electronic address: yang.liu@emory.edu.
Chemosphere ; 263: 127894, 2021 Jan.
Article en En | MEDLINE | ID: mdl-32814138
Quantification of PM2.5 exposure and associated mortality is critical to inform policy making. Previous studies estimated varying PM2.5-related mortality in China due to the usage of different source data, but rarely justify the data selection. To quantify the sensitivity of mortality assessment to source data, we first constructed state-of-the-art PM2.5 predictions during 2000-2018 at a 1-km resolution with an ensemble machine learning model that filled missing data explicitly. We also calibrated and fused various gridded population data with a geostatistical method. Then we assessed the PM2.5-related mortality with various PM2.5 predictions, population distributions, exposure-response functions, and baseline mortalities. We found that in addition to the well documented uncertainties in the exposure-response functions, missingness in PM2.5 prediction, PM2.5 prediction error, and prediction error in population distribution resulted to a 40.5%, 25.2% and 15.9% lower mortality assessment compared to the mortality assessed with the best-performed source data, respectively. With the best-performed source data, we estimated a total of approximately 25 million PM2.5-related mortality during 2001-2017 in China. From 2001 to 2017, The PM2.5 variations, growth and aging of population, decrease in baseline mortality led to a 7.8% increase, a 42.0% increase and a 24.6% decrease in PM2.5-related mortality, separately. We showed that with the strict clean air policies implemented in 2013, the population-weighted PM2.5 concentration decreased remarkably at an annual rate of 4.5 µg/m3, leading to a decrease of 179 thousand PM2.5-related deaths nationwide during 2013-2017. The mortality decrease due to PM2.5 reduction was offset by the population growth and aging population.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mortalidad / Contaminantes Atmosféricos / Contaminación del Aire / Exposición a Riesgos Ambientales / Material Particulado Tipo de estudio: Prognostic_studies Límite: Aged / Humans País/Región como asunto: Asia Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mortalidad / Contaminantes Atmosféricos / Contaminación del Aire / Exposición a Riesgos Ambientales / Material Particulado Tipo de estudio: Prognostic_studies Límite: Aged / Humans País/Región como asunto: Asia Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido