MA H2369

Creates a technical air quality advisory committee to identify communities with high cumulative exposure to toxic air contaminants, including residents of environmental justice populations, academics, and labor representatives, to be convened by December 1, 2025

Requires the Department of Environmental Protection to install stationary air monitors in at least eight air pollution hotspots by December 31, 2026, measuring black carbon, nitrogen oxides, and ultrafine particulate matter

Mandates 50% reduction in target pollutant concentrations below baseline by December 31, 2030, and 75% reduction by December 31, 2035 in identified hotspots

Establishes air filtration requirements (MERV 16 or equivalent) for schools, large commercial buildings, and residential buildings with more than 10 units located within 200 meters of major roadways, airports, marine terminals, or diesel train facilities

Grants enforcement authority through superior court actions with universal standing and allows recovery of attorneys' fees for prevailing plaintiffs