Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 23, issue 2
Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-1769-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-23-1769-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 2
Research article
 | Highlight paper
 | 
01 Feb 2023
Research article | Highlight paper |  | 01 Feb 2023

Projected increases in wildfires may challenge regulatory curtailment of PM2.5 over the eastern US by 2050

Chandan Sarangi, Yun Qian, L. Ruby Leung, Yang Zhang, Yufei Zou, and Yuhang Wang

Viewed

Total article views: 4,367 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
3,613 708 46 4,367 158 41 51
  • HTML: 3,613
  • PDF: 708
  • XML: 46
  • Total: 4,367
  • Supplement: 158
  • BibTeX: 41
  • EndNote: 51
Views and downloads (calculated since 10 May 2022)
Cumulative views and downloads (calculated since 10 May 2022)

Viewed (geographical distribution)

Total article views: 4,367 (including HTML, PDF, and XML) Thereof 4,392 with geography defined and -25 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 12 Nov 2024
Download
Executive editor
Wildfires enhance surface PM2.5 concentration and thus adversely affect air quality and human health. Based on online-coupled fire-climate-ecosystem model simulations, this paper projects a nearly 2-fold increase in wildfire-induced summer-mean surface PM2.5 by the mid-21st century over North America. The projected enhancement is substantial even in the less-densely forested eastern US - as already manifested in the poor air quality as observed in June 2023 due to Canadian wildfires -, which is attributed to the transport of smoke from North America as well as positive climatic feedback of smoke on PM2.5. Thus, future regulatory controls on PM2.5 in North America, particularly in the eastern US where anthropogenic emissions are falling, should consider the effect of future increases in wildfires.
Read more
Short summary
We show that for air quality, the densely populated eastern US may see even larger impacts of wildfires due to long-distance smoke transport and associated positive climatic impacts, partially compensating the improvements from regulations on anthropogenic emissions. This study highlights the tension between natural and anthropogenic contributions and the non-local nature of air pollution that complicate regulatory strategies for improving future regional air quality for human health.
Read more
Special issue
The role of fire in the Earth system: understanding interactions...
Altmetrics
Final-revised paper
Preprint