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Formal Comment by Jeffrey Bogen: Cumulative Health Effects Missing in SAMP EIS

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Cities
Des Moines
Airport Committee 2025
Jeffrey Bogen

Des Moines resident Jeffrey Bogen submitted a formal comment arguing that the Sea-Tac Airport Master Plan (SAMP) Environmental Impact Statement fails to adequately analyze cumulative health effects on nearby communities. He contends that the EIS must go beyond examining individual pollution sources and instead assess the combined burden of aircraft ultrafine particles, roadway traffic emissions, chronic noise, and other stressors together, since scientific research shows these exposures interact and compound one another. Bogen calls for a comprehensive cumulative-risk framework, backed by ten peer-reviewed studies, to be incorporated into the EIS before any accurate public health or policy conclusions can be drawn.

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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.

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