January 19, 2010

PFOA/PFOS and thyroid disease

Speakers:
Prof Tamara Galloway, Professor of Ecotoxicology, University of Exeter
Prof David Melzer, Epidemiology and Public Health Group, Peninsula Medical School

PFOA (perfluorooctanoic acid) and PFOS (perfluoroctane sulphonate) are byproducts formed in the manufacture of non-stick surfaces, flame-resistant and waterproof items. There is evidence from animal models that this family of chemicals (PFCs) can cause thyroid hormone imbalance and previous studies have also suggested workers exposed to very high PFOA may have changes in their thyroid hormone levels. In this first study of its kind, experts have investigated whether there is any evidence of such a link in the general population. To coincide with publication, the authors came to the SMC to brief journalists on their findings.