Water & Air Quality in Massachusetts
Regional composite data for PFAS, lead, and PM2.5 in Massachusetts. Values are derived from EPA UCMR 5, EWG Tap Water Database, and AirNow annual averages. Check your specific ZIP code below for localized results.
PFAS
Lead
PM2.5
Massachusetts Context
MWRA sources are clean but pre-1986 plumbing in Boston/Cambridge drives lead risk.
Check Your Specific ZIP Code in Massachusetts
State averages mask wide local variation. Your ZIP code may be significantly cleaner or more contaminated than the state composite — especially near industrial sites, military bases, or older housing stock.
Audit Massachusetts ZIP 02118 →Or go to the home page and enter any Massachusetts ZIP code.
What These Numbers Mean for Massachusetts Residents
PFAS in Massachusetts Drinking Water
Massachusetts's regional PFAS composite is 3 parts per trillion (ppt), which is at or below the EPA's 2024 enforceable limit of 4 ppt for PFOA and PFOS. That said, the EPA limit reflects what's technically achievable — the agency's health goal is zero, and any PFAS exposure carries some risk given their persistence in the body.
Lead in Massachusetts Tap Water
Lead contamination in Massachusetts averages 5.8 ppb at the 90th percentile. This is at or above concerning levels. Homes built before 1986 face the highest risk from lead service lines and solder. An NSF 53-certified under-sink filter or reverse osmosis system removes lead at the tap.
PM2.5 Air Quality in Massachusetts
Massachusetts's annual average PM2.5 is 7.4 µg/m³. This meets the EPA annual standard (9 µg/m³) but exceeds the stricter WHO guideline of 5 µg/m³. A HEPA air purifier in sleeping areas is recommended, particularly for children and people with respiratory conditions.
Filtration Recommendations for Massachusetts
- Lead concern: Any NSF 53-certified carbon block filter removes lead at the tap. An RO system covers both PFAS and lead. Shop Berkey →
Massachusetts Water & Air Resources
Want to go deeper? Read our evidence-based articles on PFAS health effects, water filter comparisons, and PM2.5 air quality. Or audit your specific ZIP code for localized results.