1-Eicosanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,20-heptatriacontafluoro-

Made or used in fluoropolymer production and surface‑treatment products; can form as a breakdown product of PFAS‑treated goods [1][2].

Indoor air and dust from treated carpets/upholstery, contaminated drinking water, some food contact materials, and workplace air [1][2][3].

PFAS persist and some convert to perfluoroalkyl acids linked to immune effects, higher cholesterol, liver changes, lower birth weight, and certain cancers (e.g., PFOA) [1][3][4][5].

Workers handling PFAS, people using contaminated water, pregnant people, infants/children, and high fish consumers in impacted areas [1][2][3].

Use certified filters (reverse osmosis or activated carbon) for PFAS, reduce stain‑resistant sprays/textiles, wet‑dust/HEPA vacuum, ventilate, and follow local water and fish advisories [2][1][3].