Researchers from the University of Washington School of Public Health were commissioned by Washington State to study ultrafine particle air pollution near Sea-Tac Airport, the busiest international airport in the state. The study, presented in November 2017, required measuring ultrafine particulate matter within ten miles of the airport along flight paths, distinguishing aircraft emissions from other pollution sources, and comparing affected areas to unaffected ones. Findings and recommendations on whether to proceed with a second phase of research were due to the state legislature by December 1, 2019.Open full document
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A presentation by Tim Larson and Edmund Seto of the UW Department of Environmental & Occupational Health Sciences at the Highline Forum on November 15, 2017. The presentation covers a Washington State-mandated study on ultrafine particulate matter near Sea-Tac Airport, including requirements to assess concentrations within ten miles of the airport along flight paths and at existing monitoring stations. The study must distinguish aircraft from other UFP sources, compare impacted and non-impacted areas, coordinate with local governments, and report findings to the Legislature by December 1, 2019.