Chemical Group
Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)
Chemical Name
Project Name
Biomonitoring Exposures Study (BEST) - 2.Expanded
Units
ng/mL
Measured in
Serum
Study Group Subset
Geometric mean (95% Confidence Interval)
5.07
95% Confidence Interval lower
4.53
95% Confidence Interval upper
5.68
25th
3.41
50th
5.05
75th
7.82
95th
17.6
Number of people tested
337.00
Detection Frequency
99.7%
Limit of Detection (LOD), wet-weight
0.0943 ng/mL
Indicates Exposure to
PFOS
Footnote
○Expanded BEST data from 337 participants was weighted, a statistical method to adjust over-represented and under-represented samples, so that the summary results adequately reflect the population of California’s Central Valley. Unweighted results are available to download on the Biomonitoring Exposures Study (BEST) – 2. Expanded project page.
Summary Result Type
Weighted - Unweighted
