Air Quality

Learn about air pollution, its health and environmental effects, and efforts to improve air quality and address climate change.

Gases, particles, and toxics in the air we breathe can harm our lungs and threaten our health. Some air pollutants, known as greenhouse gases, form a "blanket" around the Earth that traps heat and causes severe, unstable weather. Massachusetts' Department of Environmental Protection (MassDEP) regulations, permits, and programs reduce the risks posed by air pollution and climate change.


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