Notes
Formal public comment submitted by Jeffrey Bogen, Des Moines resident, dated May 28, 2026, regarding the Sea-Tac Airport (SEA) Sustainable Airport Master Plan (SAMP) Environmental Impact Statement (EIS). Argues that SAMP EIS Section 5.4 fails to include a cumulative effects analysis under SEPA, specifically omitting combined health impacts from aircraft ultrafine particles (UFPs), roadway traffic UFPs, chronic noise, heat-island amplification, socioeconomic vulnerability, and preexisting cardiovascular and respiratory conditions on near-airport communities. Cites Austin E, Xiang J, Gould T et al., Environmental Science & Technology 2021;55(5):2847-2858, documenting distinct aircraft and roadway UFP profiles at SEA detectable up to 10 miles downwind. Calls for a cumulative-risk framework incorporating multiple biological pathways, additive and interactive exposure effects, and environmental justice considerations.
