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HD 4108

An Act improving air quality in airport environmental justice communities

194th Legislature (2025-2026) Introduced by Billy MacGregor and 1 co-sponsor

Massachusetts bill mandates air quality monitoring and emissions reductions in airport environmental justice communities to protect residents from pollution-related health risks.

Senate concurred
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Bill Summary · HD 4108

Legislative bill overview

HD 4108 establishes new air quality standards and monitoring requirements specifically for communities surrounding Massachusetts airports, with enhanced protections in designated environmental justice areas. The bill mandates baseline emissions testing, regular air quality monitoring, and requires airport operators to develop mitigation plans to reduce harmful pollutants affecting nearby residents.

Why is this important

Airport operations generate significant air pollution through aircraft emissions, ground vehicles, and auxiliary power units—exposing nearby residents to elevated levels of nitrogen oxides, particulate matter, and other pollutants. Environmental justice communities, often lower-income and communities of color, are disproportionately located near airports and experience compounded health risks including asthma, cardiovascular disease, and premature mortality. This bill attempts to address a documented equity gap by giving these communities specific regulatory protections and data transparency.

Potential points of contention

  • Economic impact on airports: Airport operators may argue compliance costs are substantial and could be passed to airlines/passengers, potentially affecting regional competitiveness and flight pricing
  • Feasibility of mitigation: Some pollutants (aircraft emissions) are difficult to control without federal aviation technology standards, raising questions about whether state-level mandates are effective
  • Definition and scope: Environmental justice community boundaries and which airports are covered remain undefined in available information, creating uncertainty about regulatory applicability and costs

Compiled from official sources — confirm details with the bill’s official record.

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