In a June 22, 2021 letter, Seattle-Tacoma International Airport (operated by the Port of Seattle) raised formal concerns about a Public Health–Seattle & King County report examining community health impacts from airport-related noise and air pollution. The Port objected that it was not consulted during the report's development and questioned the methodology, noting that SEA aircraft account for only about 0.25% of total PM2.5 emissions in the region. The letter calls for a more rigorous toxicity assessment and asks how other contributing health factors—such as smoking rates and access to medical care—were accounted for before drawing conclusions about the airport's health impacts.Open full document
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A letter from Arlyn Purcell, Director of Aviation Environment & Sustainability at the Port of Seattle, to Dr. Kris Johnson at Public Health—Seattle & King County (PHSKC), raising concerns about the PHSKC report on community health and airport operations related noise and air pollution. The letter questions the County’s methodology, data sources, scope, and conclusions, particularly the report’s failure to conduct a full toxicity assessment and its inadequate consideration of other pollution sources. The Port expresses intent to present these concerns at the June 23 SeaTac Stakeholder Advisory Roundtable (StART) meeting.