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Source sector and fuel contributions to ambient PM2.5 and attributable mortality across multiple spatial scales

Journal Article · · Nature Communications
 [1];  [1];  [2];  [3];  [4];  [4];  [1];  [1];  [1];  [3];  [3];  [5];  [5];  [6];  [6];  [7]
  1. Washington Univ., St. Louis, MO (United States); Dalhousie Univ., Halifax, NS (Canada)
  2. Spadaro Environmental Research Consultants (SERC), Philadelphia, PA (United States)
  3. Univ. of Washington, Seattle, WA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Univ. at Albany, NY (United States)
  6. Peking Univ., Beijing (China)
  7. Univ. of Washington, Seattle, WA (United States); Univ. of British Columbia, Vancouver, BC (Canada)
Ambient fine particulate matter (PM2.5) is the world’s leading environmental health risk factor. Reducing the PM2.5 disease burden requires specific strategies that target dominant sources across multiple spatial scales. We provide a contemporary and comprehensive evaluation of sector- and fuel-specific contributions to this disease burden across 21 regions, 204 countries, and 200 sub-national areas by integrating 24 global atmospheric chemistry-transport model sensitivity simulations, high-resolution satellite-derived PM2.5 exposure estimates, and disease-specific concentration response relationships. Globally, 1.05 (95% Confidence Interval: 0.74–1.36) million deaths were avoidable in 2017 by eliminating fossil-fuel combustion (27.3% of the total PM2.5 burden), with coal contributing to over half. Other dominant global sources included residential (0.74 [0.52–0.95] million deaths; 19.2%), industrial (0.45 [0.32–0.58] million deaths; 11.7%), and energy (0.39 [0.28–0.51] million deaths; 10.2%) sectors. Our results show that regions with large anthropogenic contributions generally had the highest attributable deaths, suggesting substantial health benefits from replacing traditional energy sources.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE; USEPA
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1814474
Report Number(s):
PNNL-SA--158393
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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