PFAS Exposure Calculator: Estimate Lifetime Intake & Filtration Impact

PFAS Exposure Calculator

Estimate your lifetime PFAS intake from drinking water and discover how much filtration can protect your health.

U.S. average \~10-50 ppt. Some areas >1000 ppt.
Typical adult: 1.5–3 L/day
Consider lifetime (70+ years) for long-term risk

Total Lifetime Intake

0 ng

Risk Level

Low

Filtration Reduction

0%

with selected filter

Low High

What Are PFAS and Why Do They Matter?

PFAS (“forever chemicals”) are persistent synthetic compounds linked to increased risk of certain cancers, immune system effects, developmental issues, and more. They are found in drinking water supplies worldwide.

How the Calculator Works

This tool multiplies water concentration × daily intake × days exposed, then applies your chosen filter reduction. Results are estimates for educational purposes only.

Best Filters for PFAS Removal

Reverse Osmosis (RO) typically removes 90–99% of PFAS. High-quality activated carbon filters remove 50–80%. Boiling does not remove PFAS.

Frequently Asked Questions

What is a safe level of PFAS in drinking water?

The EPA has set very low health advisory levels (4 ppt for certain PFAS). Many experts recommend keeping total PFAS as low as reasonably achievable.

Does my city water have PFAS?

Check the EPA’s PFAS database or your local water quality report. Private wells should be tested independently.

This calculator provides estimates based on publicly available data and is for informational purposes only. It is not medical or regulatory advice. Consult professionals for health concerns or water testing.