Indoor Air Quality Program (IAQ) has broad responsibility under M.G.L. c. 111 sec. 5, including to “conduct sanitary investigations and investigations as to the causes of disease” and to “advise the government concerning the location and other sanitary condition of any public institution.” Under this authority, the IAQ program conducts assessments of indoor air quality in public buildings throughout Massachusetts.

The IAQ Program consists of two distinct activities: Indoor Air Quality (IAQ) Assessment and Radon Assessment.

IAQ Assessment

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IAQ Assessment conducts visits to public building to evaluate the ventilation system; determine the potential for microbial growth; and identify and locate the point sources of environmental concerns.

These assessments are conducted in public schools, courthouses, town halls, libraries, state offices, and other public buildings or buildings that the public may enter. Other activities of this program include emergency response to chemical spills indoors, fire and catastrophic water damage.

IAQ Assessment can provide technical assistance regarding indoor air quality, water damage, mold remediation and other related indoor air quality issues in buildings.

Notes regarding IAQ Assessment activities:

  • The IAQ Assessment program does not conduct air sampling for mold in any building or interpret mold sampling result conducted by private mold testing contractors or consultants.
  • The IAQ Assessment program does not enforce state housing or building codes, nor is it responsible for building issues that are the jurisdiction of a municipal health department or board of health including housing inspections conducted by local health agents.  If a resident has a complaint regarding conditions in housing or an inspection by a health department or board of health, that individual can ask for a hearing of their grievance pursuant to 105 CMR 400.000: State Sanitary Code Chapter II: General Administrative Procedures pdf format of 105cmr400.pdf
rtf format of                             105cmr400.rtf                .   The Community Sanitation Program may also be able to provide assistance.

Indoor Air Quality Information and Reports

Radon Assessment

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Working closely with the US Environmental Protection Agency (EPA), the Radiation Control Program's Radon Unit advises and assists homeowners, radon mitigators and owners of public buildings in dealing with high levels of radon in indoor air that contribute unnecessarily to the background radiation received by members of the public. The Radiation Control Program receives funding from the EPA under its State Indoor Radon Grant program to assist in these advisory and mitigation activities.


Contact the Radon Unit at (800) 723-6695 (toll-free in Massachusetts only) or (413) 586-7525

Note: The operating hours are Mondays through Fridays from 8:45 a.m. to 5:00 p.m. To leave a message when calling outside of operating hours, please follow the language prompts (1 for English, 2 for Spanish), and then dial 2 to reach the office mailbox.

This information is provided by the Bureau of Environmental Health within the Department of Public Health.