about this participant:

Tracy Herndon, a Registered Nurse from Missoula, MT, participated in the 2008 biomonitoring investigation entitled "EWG Study #9, flame retardants in mothers and children." She gave blood for the study on December 7, 2006 at age 34.

Related links:

Missoula, MT

Participant's groups:

PBDE Family 18, Moms, Female, Adult


EWG Study #9, flame retardants in mothers and children

Sample Date:

December 7, 2006

health & safety concerns:
chemicals found in this person
Brain and nervous system7
Reproduction and fertility7

picture of Tracy Herndon

Participant: Tracy Herndon
Found 7 of 20 tested chemicals

Tracy Herndon's blood contained 7 of 20 industrial compounds, pollutants and other chemicals tested, including chemicals linked to brain and nervous system toxicity, reproductive toxicity and fertility problems,

Summary of chemicals found in Tracy Herndon

chemical family level found health effects exposure routes
Polybrominated diphenyl ethers (PBDEs)moderateReproduction and fertility, Brain and nervous system Foam furniture, carpet padding, computers, televisions, contaminated house dust, food

Test results by chemical family (see each chemical)

polybrominated diphenyl ethers (pbdes)

7 of 20 found — see each chemical

Polybrominated diphenyl ethers (PBDEs)

Fire retardants in furniture foam, computers, and televisions. Accumulate in human tissues. May harm brain development.

  • cumulative level found: 24.1 ng/g (lipid weight) in blood serum
      [excludes PBDE-154/PBB-153]
  • Moderate vs 116 tested in EWG/Commonweal studies (54th %ile)
  • Moderate vs 2,337 tested in CDC biomonitoring [1] (37th %ile) (comparison based on congeners tested by CDC)
1.11ng/g (lipid weight) in blood serum314

Total Polybrominated diphenyl ethers (PBDEs)

Chemicals not found in Tracy Herndon

13 chemicals

PBDE-85, PBDE-201, PBDE-196, PBDE-208, PBDE-207, PBDE-206, PBDE-71, PBDE-66, PBDE-17, PBDE-209, PBDE-183, PBDE-138, PBDE-203


[1] CDC (2005). National Report on Human Exposure to Environmental Chemicals, Centers for Disease Control. http://www.cdc.gov/exposurereport/. (Methylmercury results have been compared to total mercury in CDC biomonitoring.)

See results for this participant's group