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Epidemiologic Assessment of Worker Serum Perfluorooctanesulfonate (PFOS) and Perfluorooctanoate (PFOA) Concentrations and Medical Surveillance Examinations
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Epidemiologic Assessment of Worker Serum Perfluorooctanesulfonate (PFOS) and Perfluorooctanoate (PFOA) Concentrations and Medical Surveillance Examinations
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Journal Article
Epidemiologic Assessment of Worker Serum Perfluorooctanesulfonate (PFOS) and Perfluorooctanoate (PFOA) Concentrations and Medical Surveillance Examinations
2003
Overview
Perfluorooctanesulfonyl fluoride (POSF, C₈F₁₇SO₂F) is used to create applications for surfactants and paper, packaging, and surface (eg, carpets, textiles) protectants. Such POSF-based products or their residuals may degrade or metabolize to PFOS (C₈F₁₇SO₃⁻). PFOS concentrates in liver and serum and results in hypolipidemia as an early effect of cumulative dosages. Male and female employees of two perfluoroocta nyl-manufacturing locations (Antwerp, Belgium and Decatur, Alabama) participated in a penodic medical surveillance program that included hematology, clinical chemistry, thyroid hormone, and urinalysis testing. Serum concentrations of PFOS and perfluorooctanoate (PFOA, C₇F₁₅CO₂⁻, used as a fluoropolymer emulsifier) were measured via mass spectrometry methods. The mean serum PFOS and PFOA concentrations for 263 Decatur employees were 1.32 parts per million (ppm; geometric mean 0.91, range 0.06-10.06 ppm) and 1.78 ppm (geometric mean 1.13, range 0.04-12.70 ppm), respectively. Mean concentrations were approximately 50% lower among 255 Antwerp workers. Adjusting for potential confounding factors, there were no substantial changes in hematological, lipid, hepatic, thyroid, or urinary parameters consistent with the known toxicological effects of PFOS or PFOA in cross-sectional or longitudinal analyses of the workers' measured serum fluorochemical concentrations.
Publisher
Lippincott Williams & Wilkins,The American College of Occupational and Environmental Medicine,Lippincott Williams & Wilkins Ovid Technologies
