Citizens group urges expanded air monitoring near Woods Hole; board weighs costs and DEP engagement

Representatives of the Smart Citizens Task Force updated the Board of Health on a small sensor deployment and urged the town to consider higher‑end gaseous and ultrafine particulate monitors.

Bob Morris and Nat Trumble described a grant‑funded PurpleAir network already showing episodic PM2.5 spikes near the ferry terminal; they said PurpleAir units are inexpensive and public‑facing but do not measure gases such as sulfur dioxide (SO2), nitrogen dioxide (NO2) or ultrafine particles. Trumble reported vendor quotes ranging from roughly $6,000 for SO2/NO2 monitoring modules to $20,000–60,000 for stationary ultrafine‑particle instrumentation, plus recurring support and data‑management fees. The group recommended exploring a town purchase or a vendor contract for station installation and ongoing support and suggested the Steamship Authority as a potential co‑operator or host site for monitors.

Select Board member Doug Brown and other board members raised operational questions: whether additional monitoring would prompt MassDEP action, what type and level of measurements would be actionable, and whether data management and interpretation should be contracted to a third party. Several board members recommended submitting a public comment during MassDEP’s network‑plan comment period and asking DEP which monitoring parameters and siting would be most likely to produce actionable results. The board asked staff and SMART to forward vendor quotes and recommended convening a small technical review with DEP and the town manager to identify feasible next steps and funding sources (including potential embarkation‑fee allocations).