In a study that was released in 2015 by NCBI in the Journal of Occupational and Environmental Medicine, California firefighters’ blood concentrations of selected chemicals was assessed and compared with a representative US population. The scientists that conducted this study reported laboratory methods and analytic results for cadmium, lead, mercury, and manganese in whole blood and 12 serum perfluorinated chemicals in a sample of 101 Southern California firefighters.

As a result of the study, the scientists found that perfluorodecanoic acid concentrations were three times higher in this firefighter group than in NHANES adult males and that firefighters may have unidentified sources of occupational exposure to perfluorinated chemicals.

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