Results

Chemical Group: Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

  • Measured in: Serum

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD)
PFOS PFOS ng/mL 101 12.5 11.3 13.8 10.1 12.7 16.8 24.7 100% 0.083

Footnotes

*Geometric mean was not calculated because the chemical was found in less than 65% of the study group.
*Geometric mean was not calculated because the chemical was found in less than 65% of the study group
**LOD changed during the time that samples were analyzed for this project.
# As of March 2013, PFBuS is no longer measured due to instrumental background interference.
XLS