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)
0.739
95% Confidence Interval lower
0.660
95% Confidence Interval upper
0.827
25th
0.497
50th
0.764
75th
1.18
95th
1.95
Number of people tested
337.00
Detection Frequency
99.5%
Limit of Detection (LOD), wet-weight
0.0282 ng/mL
Indicates Exposure to
PFNA
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
