PFAS vs Lead
EPA limits, health effects, treatment options, and affected U.S. utilities — compared
Quick Answer
Both PFAS and Lead share the same risk classification (high). PFAS affects 0 utilities in our database vs. 1,793 for Lead.
Synthetic Chemicals
PFAS are a group of thousands of man-made chemicals that have been used in industrial and consumer products since the 1940s.
Heavy Metals
Lead enters drinking water primarily through corrosion of lead service lines and lead-containing plumbing fixtures — not typically from the water source itself.
Head-to-Head Comparison
| Metric | PFAS | Lead |
|---|---|---|
| Category | Synthetic Chemicals | Heavy Metals |
| Risk Classification | high | high |
| EPA MCL | 4 ppt | 15 ppb (action level) |
| Utilities in Violation | 0 | 1,793 |
| Well Water Risk | Yes — test recommended | Lower risk |
| Primary Sources |
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|
| Recommended Treatments |
Health Effects Compared
PFAS Health Effects
- Increased risk of kidney and testicular cancer
- Thyroid disease and hormonal disruption
- Immune system suppression — reduced vaccine effectiveness
- High cholesterol and cardiovascular effects
- Developmental delays and low birth weight in infants
- Liver damage at high exposure levels
Who is affected: People near military bases (which used PFAS-containing firefighting foam), industrial sites, and communities that have received contaminated biosolid fertilizer face the highest exposure. Infants, pregnant women, and people with compromised immune systems are most vulnerable.
Lead Health Effects
- Permanent cognitive and behavioral impairment in children — no safe exposure threshold exists
- Reduced IQ: each 10 µg/dL increase in blood lead is associated with a 4–7 point IQ reduction in children
- Hyperactivity, attention deficits, and increased antisocial behavior
- Slowed physical growth and delayed puberty
- Hearing loss and speech delays in young children
- High blood pressure and increased cardiovascular disease risk in adults
- Chronic kidney disease with long-term adult exposure
- Miscarriage, stillbirth, and premature birth during pregnancy
- Fetal neurodevelopmental harm even at low maternal blood lead levels
Who is affected: Children under 6 face the greatest neurological risk — their developing brains absorb lead at a much higher rate than adults. Pregnant women are at significant risk because lead crosses the placental barrier and accumulates in fetal bone. Renters and low-income households in pre-1986 urban housing stock are disproportionately exposed. Residents in cities with aging infrastructure — including Chicago, Detroit, Cleveland, Milwaukee, and Newark — face elevated risk due to widespread lead service lines. Communities of color are disproportionately impacted, as redlined neighborhoods often have the oldest housing and most deferred infrastructure investment.
Filters That Remove Both
These treatment methods are effective against both PFAS and Lead:
Reverse Osmosis Filtration
Households with multiple contaminant concerns, PFAS or nitrate issues, or anyone wanting the broadest possible reduction in drinking water contaminants. Also the right choice when you want a single solution verified to address your specific water test results.
Activated Carbon Filtration
Chlorine taste/odor, disinfection byproducts, and general water quality improvement. An NSF/ANSI 53 certified under-sink carbon block filter is an effective and affordable solution for households primarily concerned with chlorine, DBPs, and trace organics.