CDC Report: Average PFAS Blood Levels Are Declining — But Still Detectable in 98% of Americans
The latest CDC NHANES biomonitoring data shows that average blood levels of legacy PFAS compounds like PFOS and PFOA have decreased significantly since 2000, but newer PFAS variants are increasingly detected.
Good News and Bad News
The good news: blood levels of PFOS have fallen by approximately 85% since the early 2000s, and PFOA levels have dropped by about 70%. This decline coincides with the phase-out of these specific compounds by major manufacturers.
The bad news: PFAS are still detectable in 98% of Americans tested. And while legacy PFAS levels are declining, newer replacement chemicals (like GenX compounds) are increasingly being detected.
The "Regrettable Substitution" Problem
When manufacturers phased out PFOA, many replaced it with structurally similar chemicals — like GenX (used by Chemours) or ADONA (used in some PTFE production). These replacements are still PFAS and may carry their own health risks, but have been studied far less than their predecessors.
This is exactly the pattern we see in cookware marketing. "PFOA-Free" became a selling point — but the replacement chemicals are often equally concerning. That's why ClearVerdict evaluates the full PFAS picture, not just individual compounds.
How to Lower Your Personal PFAS Burden
- Filter drinking water with activated carbon or reverse osmosis systems rated for PFAS removal
- Reduce use of PFAS-containing consumer products (non-stick cookware, stain-resistant fabrics, grease-proof food packaging)
- Choose cookware verified as PFAS-free — not just "PFOA-Free"
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