8:2 FTS

Synonyms: 8:2 Fluorotelomer sulfonic acid

CAS Number: 39108-34-4

Sources of exposure:

Firefighting foam; industrial surfactants; treated paper and textiles; contaminated water, soil, and dust

Description:

8:2 FTS is a fluorotelomer per- and polyfluoroalkyl substance (PFAS) associated with firefighting foams, industrial surfactants, coatings, treated paper, and water-, grease-, or stain-resistant textiles. It may be released during manufacturing, product use, firefighting activities, wastewater treatment, and waste disposal. In the environment and living organisms, 8:2 FTS can transform into highly persistent perfluoroalkyl carboxylic acids, including PFOA and other long-chain PFAS. Information about the direct long-term health effects of 8:2 FTS remains limited, but exposure to its persistent transformation products is an additional concern. Because this PFAS is environmentally persistent and may contribute to sustained human or ecological exposure directly or through transformation products, the glossary applies a precautionary approach where long-term hazard and exposure information is limited.

Health concerns:

Organ System Toxicity

May cause organ damage and disease.

Irritant

May cause skin, eye, or respiratory irritation.

Banned/restricted lists:

Minnesota Amara's Law
California AB 1817-PFAS in textile articles

HOW MILLION MARKER SCORES CHEMICALS

Million Marker's Ingredient Hazard Scoring uses multiple chemical databases and a science-backed scoring system to compute hazard scores for thousands of chemicals found in consumer products and listed on ingredient labels.

We identified key chemicals based on a database compiling dozens of authoritative sources, screening tools, and QSAR models.

Hazard scores within 11 different health categories (carcinogens, endocrine disruptors, reproductive toxicants, developmental toxicants, genotoxicity, neurotoxicity, organ system toxicity, immunotoxicity, respiratory toxicity, skin/eye/respiratory irritants, and ecotoxicity).

They are weighted based on several factors, including strength of evidence for adverse impacts in humans, severity, and potential contamination.