How low can you go? Air pollution affects mortality at very low levels-Reference-Cited by-同舟云学术

How low can you go? Air pollution affects mortality at very low levels

Published:2022-09-30 Issue:39 Volume:8 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Weichenthal Scott¹²^ORCID,Pinault Lauren³,Christidis Tanya³^ORCID,Burnett Richard T.⁴^ORCID,Brook Jeffrey R.⁵,Chu Yen⁶,Crouse Dan L.⁷^ORCID,Erickson Anders C.⁶^ORCID,Hystad Perry⁸^ORCID,Li Chi⁹^ORCID,Martin Randall V.⁹¹⁰^ORCID,Meng Jun¹⁰¹¹^ORCID,Pappin Amanda J.²^ORCID,Tjepkema Michael³,van Donkelaar Aaron⁹¹⁰,Weagle Crystal L.⁹^ORCID,Brauer Michael⁴⁶^ORCID

Affiliation:

1. McGill University, Montreal, QC, Canada.

2. Health Canada, Ottawa, ON, Canada.

3. Statistics Canada, Ottawa, ON, Canada.

4. Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.

5. University of Toronto, Toronto, ON, Canada.

6. University of British Columbia, Vancouver, BC, Canada.

7. Health Effects Institute, Boston, MA, USA.

8. Oregon State University, Corvallis, OR, USA.

9. Dalhousie University, Halifax, NS, Canada.

10. Washington University, Saint Louis, WA, USA.

11. Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada.

Abstract

The World Health Organization (WHO) recently released new guidelines for outdoor fine particulate air pollution (PM 2.5 ) recommending an annual average concentration of 5 μg/m 3 . Yet, our understanding of the concentration-response relationship between outdoor PM 2.5 and mortality in this range of near-background concentrations remains incomplete. To address this uncertainty, we conducted a population-based cohort study of 7.1 million adults in one of the world’s lowest exposure environments. Our findings reveal a supralinear concentration-response relationship between outdoor PM 2.5 and mortality at very low (<5 μg/m 3 ) concentrations. Our updated global concentration-response function incorporating this new information suggests an additional 1.5 million deaths globally attributable to outdoor PM 2.5 annually compared to previous estimates. The global health benefits of meeting the new WHO guideline for outdoor PM 2.5 are greater than previously assumed and indicate a need for continued reductions in outdoor air pollution around the world.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference32 articles.

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2. U.S. Environmental Protection Agency National Ambient Air Quality Standards (NAAQS) for PM (U.S. Environmental Protection Agency 2021); www.epa.gov/pm-pollution/national-ambient-air-quality-standards-naaqs-pm.

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