09/22/2026
Did you know that small aircraft remain the largest source of airborne lead emissions in the United States?
Research led by center member Dr. Alyssa Shiel of Oregon State University and Dr. Dean Atkinson of Portland State University found elevated lead levels in neighborhoods near the Hillsboro and Troutdale airports, where piston-engine aircraft continue to use leaded aviation gasoline. By analyzing tree moss, which acts as a natural air monitor, researchers found evidence that aviation fuel is the primary source of lead contamination near these airports.
Read more about the research and access community resources on the EHSC website: https://ehsc.oregonstate.edu/our-research/research-highlights/leaded-aviation-gas
The study's findings, published in Nature Communications Sustainability, have recently been featured in regional and national news outlets, including Inside Climate News and KGW. The research is helping inform conversations about reducing lead emissions and protecting community health.
https://www.kgw.com/article/tech/science/environment/lead-pollution-concerns-raised-hillsboro-airport/283-bf03bd9d-03d1-4cf7-bb8a-f42899ee18cd
https://insideclimatenews.org/news/06092026/oregon-small-airports-lead-risk/
https://www.morningagclips.com/leaded-aviation-gas-drives-up-lead-levels-near-regional-airports-raising-health-concerns-new-study-finds/