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Environmental Data

In 2000, the Pew Environmental Health Commission determined that there is a lack of basic information needed to link environmental hazards and chronic diseases. In response, the CDC funded state health departments to begin to integrate health and environmental datasets by building the Environmental Public Health Tracking (EPHT) Network. This information may be used for quantifying the magnitude of a problem, detecting unusual trends and occurrences, identifying populations at risk, and facilitating environmental public health research.

Currently, this website provides the following information:

Available Data Types on the MA EPHTportal
Environmental Outcome Type of Statistic Available Geographic Area For Which the Data are Available
Air Quality
  • Ozone
Number of days with maximum 8-hour average ozone concentrations over the NAAQS
Number of person-days with maximum 8-hour average ozone concentration over the NAAQS
By county and statewide
  • Fine Particles (PM2.5)
Annual average PM2.5 concentration
Percent of monitored days that daily PM2.5 concentration exceeds NAAQS
Number of person-days that daily PM2.5 concentration exceeds NAAQS
By county and statewide
Climate Change Climate change information and potential public health impacts in Massachusetts
Drinking Water
  • Arsenic
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
  • Atrazine
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
  • DEHP
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewidee
  • Disinfection Byproducts
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
  • Lead
Number of drinking water action level exceedances for lead (1999-2009) in community public water systems By CWS, community, county, and statewide
  • Nitrates
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
  • PCE
Number of drinking water violations in public water supplies By CWS, community, county, and statewidee
  • TCE
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
  • Uranium
Maximum and mean concentrations and number of drinking water violations in public water supplies By CWS, community, county, and statewide
Radon Radon information; maps and indoor radon concentration measurements for Massachusetts from the U.S. Environmental Protection Agency (U.S. EPA) By county and statewide
Recreational Water Minimum, maximum, median, mean, and standard deviation of bacterial values, and average, total, and percentage of bacterial exceedances; all bacterial results By beach, community, county, and statewide

It is important to recognize that environmental measures do not provide information on the extent of exposure or the magnitude of the risk associated with exposure to environmental contaminants. The amount of exposure depends on:

  • the concentration of the contaminant in the environment
  • how much of the contaminant is taken in by the body
  • how long a person is exposed to the contamination

Other limitations associated with the use of air quality and water quality measures, particularly at the community level, are discussed on each environmental outcome page.

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