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Heavy Metals

PFOS Test

As part of comprehensive health screening, a PFOS blood test helps you understand your exposure to persistent forever chemicals. Knowing your PFOS levels provides important insight into your environmental exposure and long-term health.

Doctor's Assessment Included

Reference Ranges

No established reference range

There is no "normal value" for PFOS in blood, and that is not an omission but the heart of the problem. The median PFOS value of a Dutch adult (6.3 ng/ml) already sits above the health-based limit (5 ng/ml): half the population is above it. A normal range would here call the majority "raised" with no treatment to offer them. RIVM also states that with current knowledge it "cannot yet be predicted whether someone will develop health problems in the future" from a single PFAS value. We therefore attach no label to your result. Discuss it with your doctor.

Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.

PFOS (Perfluorooctane Sulfonate): what this test measures

This test measures the concentration of PFOS (perfluorooctane sulfonate) in your blood. PFOS is part of the PFAS family and was historically used in stain-resistant fabrics, food packaging, firefighting foams, and various industrial applications.

PFOS (Perfluorooctane Sulfonate): why this value matters

PFOS is one of the most widely studied PFAS chemicals. It persists in the body for years, and elevated levels may be associated with changes in cholesterol, immune function, thyroid hormones, and liver enzymes. Monitoring your levels helps you understand your cumulative exposure.

PFOS (Perfluorooctane Sulfonate): when is testing worthwhile?

Testing may be recommended if you live near areas with known PFAS contamination, work with PFAS-containing products, or drink water from potentially contaminated sources. Consult a healthcare professional for interpretation of results.

PFOS (Perfluorooctane Sulfonate): symptoms of a high or low value

Low Levels

Low levels of PFOS are generally not a cause for concern and may indicate minimal exposure to PFAS chemicals.

High Levels

Cholesterol changes, immune system effects, thyroid hormone disruption, elevated liver enzymes.

PFOS (Perfluorooctane Sulfonate): lifestyle and this value

Use PFAS-free cookware and avoid stain-resistant treatments on furniture and clothing. Install a water filtration system certified to remove PFAS. Check local water quality reports for PFAS contamination information.

PFOS (Perfluorooctane Sulfonate): frequently asked questions

What is the difference between PFOS and PFOA?
PFOS and PFOA are both members of the PFAS family of forever chemicals. While they have similar persistence and health concerns, PFOS was more commonly used in stain-resistant products and firefighting foams, whereas PFOA was prevalent in non-stick coatings.
Is PFOS still being produced?
Major manufacturers phased out PFOS production in the early 2000s due to health and environmental concerns. However, legacy contamination remains widespread, and PFOS persists in the environment and in people who were previously exposed.
How can I reduce my PFOS exposure?
Using PFAS-free products, filtering drinking water with certified systems, and avoiding food packaging that may contain PFAS can help reduce ongoing exposure. Consult a healthcare professional for personalized advice.

Medical reviewer

Medical standards

Dr. Naimi oversees the medical standards behind our content and assessments.

Medical policy
CIBG Ministerie van Volksgezondheid,
Welzijn en Sport Official BIG registration BIG 49928676701 Opens in a new tab

PFOS (Perfluorooctane Sulfonate)

€158,-