Mortality burden due to long-term exposure to ambient PM2.5 above the new WHO air quality guideline based on 296 cities in China.
Environ Int
; 166: 107331, 2022 Jun 02.
Article
in English
| MEDLINE | ID: covidwho-1944933
ABSTRACT
OBJECTIVE:
Quantifying the spatial and socioeconomic variation of mortality burden attributable to particulate matters with aerodynamic diameterâ¯≤â¯2.5⯵m (PM2.5) has important implications for pollution control policy. This study aims to examine the regional and socioeconomic disparities in the mortality burden attributable to long-term exposure to ambient PM2.5 in China.METHODS:
Using data of 296 cities across China from 2015 to 2019, we estimated all-cause mortality (people agedâ¯≥â¯16â¯years) attributable to the long-term exposure to ambient PM2.5 above the new WHO air quality guideline (5⯵g/m3). Attributed fraction (AF), attributed deaths (AD), attributed mortality rate (AMR) and total value of statistical life lost (VSL) by regional and socioeconomic levels were reported.RESULTS:
Over the period of 2015-2019, 17.0% [95% confidence interval (CI) 7.4-25.2] of all-cause mortality were attributable to long-term exposure to ambient PM2.5, corresponding to 1,425.2 thousand deaths (95% CI 622.4-2,099.6), 103.5/105 (95% CI 44.9-153.3) AMR, and 1006.9 billion USD (95% CI 439.8-1483.4) total VSL per year. The AMR decreased from 120.5/105 (95% CI 52.9-176.6) to 92.7/105 (95% CI39.9-138.5) from 2015 to 2019. The highest mortality burden was observed in the north region (annual average AFâ¯=â¯24.2%, 95% CI 10.8-35.1; annual average AMRâ¯=â¯137.0/105, 95% CI 60.9-198.5). The highest AD and economic loss were observed in the east region (annual average ADâ¯=â¯390.0 thousand persons, 95% CI 170.3-574.6; annual total VSLâ¯=â¯275.6 billion USD, 95% CI 120.3-406.0). Highest AMR was in the cities with middle level of GDP per capita (PGDP)/urbanization. The majority of the top ten cities of AF, AMR and VSL were in high and middle PGDP/urbanization regions.CONCLUSION:
There were significant regional and socioeconomic disparities in PM2.5 attributed mortality burden among Chinese cities, suggesting differential mitigation policies are required for different regions in China.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Language:
English
Journal:
Environ Int
Year:
2022
Document Type:
Article
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