Document EOK14LM1zVGL5XRZg2YNN7LN
https://www.cdc.gov/exposurereport/pfas_early_release.html
Early Release: Per- and Polyfluorinated Substances (PFAS) Tables, NHANES 20112018
CDC routinely updates summary measurements for its National Health and Nutrition Examination Survey (NHANES) biomonitoring data in Updated Tables to the National Report on Human Exposure to Environmental Chemicals (National Report).
CDC is providing these per- and polyfluorinated substances (PFAS) serum measurements as a standalone resource in advance of the next scheduled National Report update to aid federal, state, and local public health agencies, and others, currently investigating PFAS.
These tables present biomonitoring data gathered in up to four cycles of CDC's NHANES: survey years 2011-12, 2013-14, 2015-16, 2017-18. The NHANES survey is designed to provide nationally representative information for the general U.S. population.
PFAS were measured in serum from random one-third subsamples of NHANES participants. The Environmental Health Laboratory in CDC's National Center for Environmental Health used mass spectrometry methods to make these measurements.
The measurement of an environmental chemical in a person's blood is an assessment of exposure; it does not by itself mean that the chemical causes disease or an adverse effect. Research studies, separate from these data, are required to determine which blood concentrations are safe and which ones could be associated with disease or an adverse effect.
Please direct any questions about this information to CDCINFO: https://wwwn.cdc.gov/dcs/contactus/form
Notes and Additional Resources
For more information about PFAS, please see the following factsheet: https://www.cdc.gov/biomonitoring/PFAS_FactSheet.html
Statistics include geometric means and selected percentiles, with 95 percent confidence intervals around each estimated statistic. Percentiles describe the shape of the distribution. For all chemicals, the 50th, 75th, 90th, and 95th percentiles are presented.
Biomonitoring is the assessment of human exposure to chemicals by measuring the chemicals, their metabolites, or adducts in human specimens such as blood, serum, or urine.
Data Tables
Serum 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2017 - 2018)
Serum Adona (ammonium salt of 4,8-dioxa-3H-perfluorononanoic acid) (2017 -
2018)
Serum GenX (ammonium salt of 2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-
heptafluoropropoxy)-propanoic acid (HFPO-DA)) (2017 - 2018)
Serum Perfluorodecanoic acid (PFDA) (2011 - 2018)
Serum Perfluoroheptane sulfonic acid (PFHpS) (2017 - 2018)
Serum Perfluorohexane sulfonic acid (PFHxS) (2011 - 2018)
Serum Perfluorohexanoic acid (PFHxA) (2017 - 2018)
Serum Perfluorohexanoic acid (PFHxA) (2017 - 2018)- NOT Detected
CAS Number 307-24-4
Geometric mean and selected percentiles of serum concentrations (in g/L) for the U.S.
population from the National Health and Nutrition Examination Survey.
Demographic Survey Geometric mean 50th Percentile 75th Percentile 90th Percentile 95th Percentile
Categories
(years)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
Total population 17-18
*
<LOD
<LOD
<LOD
<LOD
Age 12-19 years 17-18
*
<LOD
<LOD
<LOD
<LOD
Age 20+ years
17-18
*
<LOD
<LOD
<LOD
<LOD
Males
17-18
*
<LOD
<LOD
<LOD
<LOD
Females
17-18
*
Mexican Americans 17-18
*
<LOD <LOD
<LOD <LOD
<LOD <LOD
<LOD <LOD
Non-Hispanic
17-18
*
blacks
<LOD
<LOD
<LOD
<LOD
Non-Hispanic
17-18
*
whites
<LOD
<LOD
<LOD
<LOD
All Hispanics
17-18
*
<LOD
<LOD
<LOD
<LOD
Asians
17-18
*
<LOD
<LOD
<LOD
<LOD
Limit of detection (LOD, see Data Analysis section) for Survey year 17-18 is 0.100.
<LOD means less than the limit of detection, which may vary for some chemicals by year and by individual
sample.
* Not calculated: proportion of results below limit of detection was too high to provide a valid result.
Serum Perfluorononanoic acid (PFNA) (2011 - 2018)
Sample size 1929 313 1616 952 977 297
430
667
473 257
Serum Perfluorooctanoic acid (PFOA) (2011 - 2018)
Serum Perfluorooctanoic acid (PFOA) (2011 - 2018) - DROPPING
Sum of linear and branched PFOA isomers
Geometric mean and selected percentiles of serum concentrations (in g/L) for the U.S.
population from the National Health and Nutrition Examination Survey.
Demographic Survey Geometric mean 50th Percentile 75th Percentile 90th Percentile 95th Percentile
Categories
(years)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
Total population 11-12 2.08 (1.95-2.22) 2.08 (1.96-2.26) 3.03 (2.76-3.27) 4.35 (3.82-4.85) 5.68 (5.02-6.49)
Total population 13-14 1.94 (1.76-2.14) 2.07 (1.87-2.20) 3.07 (2.67-3.37) 4.27 (3.57-5.17) 5.57 (4.60-6.27)
Total population 15-16 1.56 (1.47-1.66) 1.57 (1.47-1.77) 2.47 (2.27-2.57) 3.37 (3.07-3.57) 4.17 (3.87-4.67)
Total population 17-18 1.42 (1.33-1.52) 1.47 (1.37-1.57) 2.07 (1.97-2.30) 2.97 (2.77-3.37) 3.77 (3.17-5.07)
Age 12-19 years 11-12 1.80 (1.71-1.91) 1.74 (1.67-1.89) 2.41 (2.17-2.62) 2.93 (2.68-3.19) 3.59 (2.93-4.25)
Age 12-19 years 13-14 1.66 (1.50-1.84) 1.67 (1.37-1.97) 2.20 (1.97-2.57) 2.87 (2.57-3.40) 3.47 (2.87-4.37)
Age 12-19 years 15-16 1.25 (1.14-1.37) 1.27 (1.17-1.47) 1.67 (1.47-1.87) 2.07 (1.77-2.57) 2.47 (2.07-2.97)
Age 12-19 years 17-18 1.18 (1.06-1.31) 1.17 (1.00-1.37) 1.67 (1.37-1.97) 2.07 (1.77-2.37) 2.37 (2.00-2.97)
Age 20+ years
11-12 2.12 (1.98-2.28) 2.16 (2.01-2.33) 3.15 (2.90-3.36) 4.64 (3.93-5.25) 5.94 (5.34-7.45)
Age 20+ years
13-14 1.98 (1.79-2.19) 2.07 (1.90-2.27) 3.17 (2.77-3.47) 4.47 (3.70-5.27) 5.60 (4.67-6.40)
Age 20+ years
15-16 1.60 (1.51-1.71) 1.67 (1.57-1.87) 2.47 (2.37-2.67) 3.47 (3.17-3.67) 4.27 (4.07-4.97)
Age 20+ years
17-18 1.45 (1.35-1.56) 1.47 (1.37-1.57) 2.17 (1.97-2.37) 3.17 (2.77-3.57) 3.87 (3.27-5.17)
Males
11-12 2.37 (2.22-2.53) 2.38 (2.26-2.56) 3.25 (3.00-3.56) 4.61 (4.11-5.02) 5.62 (4.85-6.20)
Males
13-14 2.29 (2.09-2.50) 2.37 (2.17-2.57) 3.27 (2.87-3.60) 4.67 (3.77-5.60) 5.67 (4.67-6.27)
Males
15-16 1.80 (1.66-1.94) 1.87 (1.67-2.07) 2.57 (2.40-2.67) 3.37 (3.07-3.67) 4.07 (3.67-4.87)
Males
17-18 1.61 (1.50-1.73) 1.57 (1.47-1.77) 2.17 (2.07-2.37) 3.17 (2.77-3.50) 3.77 (3.27-5.17)
Females
11-12 1.84 (1.68-2.01) 1.78 (1.62-1.98) 2.65 (2.34-3.14) 3.91 (3.36-4.99) 5.68 (4.33-8.45)
Females
13-14 1.66 (1.48-1.87) 1.67 (1.47-1.87) 2.67 (2.27-3.07) 3.77 (3.37-4.70) 5.07 (4.07-6.70)
Females
15-16 1.36 (1.29-1.45) 1.37 (1.27-1.47) 2.17 (1.97-2.47) 3.37 (2.87-3.67) 4.17 (3.67-4.97)
Females
17-18 1.26 (1.17-1.36) 1.27 (1.17-1.37) 1.97 (1.77-2.20) 2.97 (2.57-3.37) 3.77 (2.97-5.07)
Mexican Americans 11-12 1.66 (1.37-2.02) 1.71 (1.32-2.23) 2.43 (1.98-2.98) 3.38 (2.43-4.48) 4.08 (2.98-6.15)
Mexican Americans 13-14 1.36 (1.25-1.47) 1.37 (1.27-1.47) 1.97 (1.87-2.10) 2.70 (2.40-3.10) 3.17 (2.57-3.77)
Mexican Americans 15-16 1.14 (1.01-1.28) 1.17 (1.07-1.27) 1.67 (1.47-1.87) 2.47 (1.87-2.97) 2.77 (2.20-4.67)
Mexican Americans 17-18 1.11 (.967-1.27) 1.17 (.870-1.37) 1.57 (1.37-1.87) 2.17 (1.87-2.37) 2.80 (2.37-4.20)
Non-Hispanic blacks
11-12 1.80 (1.71-1.90) 1.94 (1.76-2.09) 2.82 (2.65-2.95) 3.94 (3.51-4.40) 5.11 (4.40-5.79)
Non-Hispanic blacks
13-14 1.52 (1.34-1.73) 1.67 (1.37-1.97) 2.57 (2.17-2.97) 3.60 (3.07-4.50) 4.60 (3.40-5.77)
Non-Hispanic blacks
15-16 1.36 (1.21-1.53) 1.37 (1.27-1.57) 2.17 (1.97-2.57) 3.37 (2.77-3.77) 4.07 (3.57-5.27)
Non-Hispanic blacks
17-18 1.18 (1.08-1.30) 1.27 (1.07-1.47) 1.77 (1.67-1.97) 2.70 (2.27-2.97) 3.37 (2.77-4.27)
Non-Hispanic whites
11-12 2.25 (2.05-2.47) 2.25 (1.98-2.48) 3.21 (2.90-3.50) 4.68 (3.95-5.35) 6.20 (5.34-7.74)
Non-Hispanic whites
13-14 2.20 (1.91-2.52) 2.27 (1.97-2.67) 3.37 (2.77-3.77) 4.77 (3.77-5.67) 5.77 (4.80-6.87)
Non-Hispanic whites
15-16 1.69 (1.57-1.82) 1.77 (1.57-1.97) 2.57 (2.47-2.67) 3.47 (3.17-3.67) 4.47 (3.87-5.17)
Non-Hispanic whites
17-18 1.54 (1.41-1.69) 1.57 (1.37-1.77) 2.27 (2.07-2.47) 3.17 (2.77-3.67) 3.77 (3.07-5.47)
All Hispanics
11-12 1.70 (1.48-1.95) 1.79 (1.59-1.95) 2.46 (2.15-2.91) 3.60 (2.95-4.48) 4.70 (3.87-5.94)
All Hispanics
13-14 1.45 (1.33-1.59) 1.47 (1.37-1.67) 2.10 (1.97-2.40) 3.07 (2.67-3.27) 3.47 (3.17-3.97)
All Hispanics
15-16 1.25 (1.14-1.36) 1.27 (1.17-1.47) 1.87 (1.67-2.20) 2.67 (2.37-3.07) 3.17 (2.77-4.17)
Sample size 1904 2165 1993 1929 344 401 353 313 1560 1764 1640 1616 966 1031 964 952 938 1134 1029 977 211 332 370 297
485
455
439
430
666
861
619
667
406 537 629
Demographic Survey Geometric mean 50th Percentile 75th Percentile 90th Percentile 95th Percentile
Categories
(years)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
(95% CI)
All Hispanics
17-18 1.19 (1.07-1.32) 1.27 (1.07-1.37) 1.67 (1.47-1.87) 2.37 (2.07-2.67) 2.97 (2.50-4.37)
Asians
11-12 2.08 (1.83-2.36) 2.21 (2.04-2.27) 2.92 (2.55-3.45) 4.66 (3.42-5.79) 5.79 (4.93-8.91)
Asians
13-14 1.97 (1.75-2.23) 1.87 (1.67-2.27) 2.97 (2.47-3.57) 4.67 (3.97-5.77) 5.90 (5.00-6.40)
Asians
15-16 1.66 (1.42-1.94) 1.77 (1.37-2.07) 2.37 (2.17-2.87) 3.77 (2.97-4.47) 4.77 (3.87-7.57)
Asians
17-18 1.65 (1.38-1.97) 1.50 (1.37-1.77) 2.67 (2.07-3.40) 4.67 (2.57-9.87) 6.77 (3.40-17.0)
Limit of detection (LOD, see Data Analysis section) for Survey year 11-12 is 0.1. See Calculation of PFOS and PFOA as the Sum of Isomers for additional information about Survey years 2013-
2014, 2015-2016, and 2017-2018.
Serum n-Perfluorooctanoic acid (n-PFOA) (2013 - 2018)
Serum branched Perfluorooctanoic acid (Sb-PFOA) (2013 - 2018)
Serum Perfluorooctane sulfonic acid (PFOS) (2011 - 2018)
Serum n-Perfluorooctane sulfonic acid (n-PFOS) (2013 - 2018)
Serum branched Perfluoromethylheptane sulfonic acid (Sm-PFOS) (2013 - 2018)
Serum 2-(N-Methyl-perfluorooctane sulfonamido) acetic acid (Me-PFOSA-AcOH
or Me-FOSA-A) (2011 - 2018)
Serum Perfluoroundecanoic acid (PUFA or PFUnDA) (2011 - 2018)
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Page last reviewed: February 2, 2021
Content source: Centers for Disease Control and Prevention
Sample size 473 291 234 220 257