Water & Air Quality in Iowa
Regional composite data for PFAS, lead, and PM2.5 in Iowa. 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
Iowa Context
Agricultural runoff influences surface supplies; PM2.5 generally moderate.
Check Your Specific ZIP Code in Iowa
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 Iowa ZIP 55401 →Or go to the home page and enter any Iowa ZIP code.
What These Numbers Mean for Iowa Residents
PFAS in Iowa Drinking Water
Iowa's regional PFAS composite is 2.5 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 Iowa Tap Water
Lead contamination in Iowa averages 4.6 ppb at the 90th percentile. This is within the EPA's action level but above the zero health goal. Lead pipes in pre-1986 homes remain the primary risk factor — consider an NSF 53-certified filter as a precaution.
PM2.5 Air Quality in Iowa
Iowa's annual average PM2.5 is 7.8 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 Iowa
- Lead concern: Any NSF 53-certified carbon block filter removes lead at the tap. An RO system covers both PFAS and lead. Shop Berkey →
Iowa 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.