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Explore national- and state-level data for hundreds of health, environmental and socioeconomic measures, including background information about each measure. Use features on this page to find measures; view subpopulations, trends and rankings; and download and share content.
Oregon Value:
Average exposure of the general public to particulate matter of 2.5 microns or less, measured in micrograms per cubic meter
Oregon Rank:
Average exposure of the general public to particulate matter of 2.5 microns or less, measured in micrograms per cubic meter
4.1 - 6.6
6.7 - 7.7
7.8 - 8.3
8.4 - 8.7
8.8 - 11.7
US Value: 8.8
Top State(s): Wyoming: 4.1
Bottom State(s): California: 11.7
Definition: Average exposure of the general public to particulate matter of 2.5 microns or less, measured in micrograms per cubic meter
Data Source and Years(s): U.S. Environmental Protection Agency, 2022-2024
Suggested Citation: America's Health Rankings analysis of U.S. Environmental Protection Agency, United Health Foundation, AmericasHealthRankings.org, accessed 2026.
In 2014, air pollution was responsible for 100,000 to 200,000 untimely deaths in the United States. Particulate matter with a diameter of 10 microns or less (PM10) poses a risk to human health because it can penetrate deep into lung tissue and enter the bloodstream. Exposure to fine particle air pollution has been linked to heart and lung problems, including decreased lung function, asthma, irregular heartbeat and heart attack.
The health and environmental benefits of lowering air pollution are significant. Studies have shown that decreasing the concentration of fine particulates in the air leads to lower risk of all-cause mortality, lung cancer and death from cardiovascular disease.
Exposure to air pollution is higher among:
Certain populations are also more vulnerable to health risks from air pollution, including:
The Environmental Protection Agency (EPA) estimates that the Clean Air Act prevented an estimated 200,000 heart attacks, 2.4 million asthma attacks and 17 million lost workdays in 2020. The EPA finalized a Clean Air Act (CAA) rule in 2024 to reduce methane and other harmful emissions from oil and natural gas operations, establishing New Source Performance Standards for new facilities and Emissions Guidelines requiring states to develop plans for existing sources. This rule could save an estimated $4.5 billion a year and reduce toxic air pollutants by 480,000 tons. However, in 2025, the EPA delayed several compliance deadlines, which is expected to postpone some of the pollution reductions originally anticipated under the 2024 standards.
Individuals can reduce their contribution to air pollution by reducing their fossil fuel consumption or taking part in local energy conservation programs. You can limit your own exposure to air pollution by:
Healthy People 2030 has multiple objectives focused on promoting healthier environments, including:
Jbaily, Abdulrahman, Xiaodan Zhou, Jie Liu, Ting-Hwan Lee, Leila Kamareddine, Stéphane Verguet, and Francesca Dominici. “Air Pollution Exposure Disparities across US Population and Income Groups.” Nature 601, no. 7892 (January 13, 2022): 228–33. https://doi.org/10.1038/s41586-021-04190-y.
Pope III, C. Arden, Majid Ezzati, and Douglas W. Dockery. “Fine-Particulate Air Pollution and Life Expectancy in the United States.” New England Journal of Medicine 360, no. 4 (January 22, 2009): 376–86. https://doi.org/10.1056/NEJMsa0805646.
Strosnider, Heather, Caitlin Kennedy, Michele Monti, and Fuyuen Yip. “Rural and Urban Differences in Air Quality, 2008–2012, and Community Drinking Water Quality, 2010–2015 — United States.” MMWR. Surveillance Summaries 66, no. 13 (June 23, 2017): 1–10. https://doi.org/10.15585/mmwr.ss6613a1.
Thakrar, Sumil K., Srinidhi Balasubramanian, Peter J. Adams, Inês M. L. Azevedo, Nicholas Z. Muller, Spyros N. Pandis, Stephen Polasky, et al. “Reducing Mortality from Air Pollution in the United States by Targeting Specific Emission Sources.” Environmental Science & Technology Letters 7, no. 9 (September 8, 2020): 639–45.https://doi.org/10.1021/acs.estlett.0c00424.
America’s Health Rankings builds on the work of the United Health Foundation to draw attention to public health and better understand the health of various populations. Our platform provides relevant information that policymakers, public health officials, advocates and leaders can use to effect change in their communities.
We have developed detailed analyses on the health of key populations in the country, including women and children, seniors and those who have served in the U.S. Armed Forces, in addition to a deep dive into health disparities across the country.