Journal Article Ppublish
PubMed: 39803003 DOI: 10.1038/s41612-024-00862-4
Regional-specific trends of PM and O temperature sensitivity in the United States.
NPJ Clim Atmos Sci 8(1):12
Authors: Lifei Yin, Bin Bai, Bingqing Zhang, Qiao Zhu, Qian Di, Weeberb J Requia, Joel D Schwartz, Liuhua Shi, Pengfei Liu
Affiliations
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332 USA.
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322 USA.
- Vanke School of Public Health, Tsinghua University, Beijing, China.
- School of Public Policy and Government, Fundação Getúlio Vargas, Distrito Federal, Brazil.
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA.
Abstract
Climate change poses direct and indirect threats to public health, including exacerbating air pollution. However, the influence of rising temperature on air quality remains highly uncertain in the United States, particularly under rapid reduction in anthropogenic emissions. Here, we examined the sensitivity of surface-level fine particulate matter (PM) and ozone (O) to summer temperature anomalies in the contiguous US as well as their decadal changes using high-resolution datasets generated by machine learning. Our findings demonstrate that in the eastern US, stringent emission control strategies have significantly reduced the positive responses of PM and O to summer temperature, thereby lowering the population exposure associated with warming-induced air quality deterioration. In contrast, PM in the western US became more sensitive to temperature, highlighting the urgent need to manage and mitigate the impact of worsening wildfires. Our results have important implications for air quality management and risk assessments of future climate change.
MeSH
Air Pollution, Air, Temperature