about this participant:

Heather Gellert, a student from Belvedere, CA, participated in the 2006 biomonitoring investigation entitled "EWG Study #6, consumer product chemicals in mothers and daughters." She gave blood and urine for the study on November 29, 2005 at age 17.

Related links:

Belvedere, CA

Participant's groups:

Teen, Gellert Family, Female


EWG Study #6, consumer product chemicals in mothers and daughters

Sample Date:

November 29, 2005

health & safety concerns:
chemicals found in this person
Reproduction and fertility21
Brain and nervous system21
Immune system (including sensitization and allergies)5
Respiratory system4
Birth defects and developmental delays2
Endocrine system2
Chronic effects, general2

picture of Heather Gellert

Participant: Heather Gellert
Found 31-34 of 70 tested chemicals

Heather Gellert's blood and urine contained 31-34 of 70 industrial compounds, pollutants and other chemicals tested, including chemicals linked to reproductive toxicity and fertility problems, brain and nervous system toxicity, and immune system toxicity.

  • This participant's samples show the highest levels of BADGE-4OH compared to all others in EWG studies
  • This participant's samples show above average levels of Perfluorochemicals (PFCs), Methylmercury, compared to all others in EWG studies

Summary of chemicals found in Heather Gellert

chemical family level found health effects exposure routes
BADGE-4OHhighEndocrine system Food can linings, dental sealants
Leadlow Lead-based paint in older homes, household dust, vinyl products, tap water
Methylmercuryhigh Dietary sources, particularly seafood
Perfluorochemicals (PFCs)moderateCancer, Birth defects and developmental delays, Endocrine system Stain- and grease-proof coatings on food packaging, couches, carpets, pans
Phthalatesmoderate Cosmetics, paint, soft plastic, food packaging, and other consumer products
Polybrominated diphenyl ethers (PBDEs)lowReproduction and fertility, Brain and nervous system Foam furniture, carpet padding, computers, televisions, contaminated house dust, food

Test results by chemical family (see each chemical)

bisphenol a & badge

1 of 2 found

Metabolite of BADGE, used to make metal food can linings. Linked to hormone activity, skin and immune system toxicity and cancer.

  • level found: 174 ng/mL (wet weight) in blood serum
  • High vs 41 tested in EWG/Commonweal studies (99th %ile)
ng/mL (wet weight) in blood serum174


2 of 2 found

Neurotoxic heavy metal linked to IQ deficits and behavioral problems. Found in dust from chipping lead paint in older homes, and in some tap water.

  • level found: 0.5 ug/dL (wet weight) in whole blood [*]
  • Low vs 71 tested in EWG/Commonweal studies (19th %ile)
  • Low vs 8,373 tested in CDC biomonitoring [1] (12th %ile) (comparison based on congeners tested by CDC)
0.222ug/dL (wet weight) in whole blood4.7

Forms from mercury, a pollutant from coal-fired power plants and other sources. Methylmercury accumulates in seafood and harms brain development and function.

  • level found: 2.31 ug/L (wet weight) in whole blood
  • Moderate vs 88 tested in EWG/Commonweal studies (52nd %ile)
  • High vs 8,373 tested in CDC biomonitoring [1] (89th %ile) (comparison based on congeners tested by CDC)
ug/L (wet weight) in whole blood25.9

perfluorochemicals (pfcs)

5 of 13 found — see each chemical

Includes Teflon, Scotchgard, Stainmaster. Linked to cancer and birth defects.

  • cumulative level found: 26.8 ng/mL (wet weight) in blood serum
  • Moderate vs 55 tested in EWG/Commonweal studies (53rd %ile)
  • Moderate vs 3,959 tested in CDC biomonitoring [1] (45th %ile) (comparison based on congeners tested by CDC)
2.63ng/mL (wet weight) in blood serum77.7

Total Perfluorochemicals (PFCs)


6 of 7 found — see each chemical

In cosmetics, paint, and plastics. Linked to sperm damage and birth defects of male reproductive system.

  • cumulative level found: 294 ug/g creatinine in urine
  • Moderate vs 72 tested in EWG/Commonweal studies (45th %ile)
  • Moderate vs 8,020 tested in CDC biomonitoring [1] (50th %ile) (comparison based on congeners tested by CDC)
102ug/g creatinine in urine10800

Total Phthalates

polybrominated diphenyl ethers (pbdes)

17-20 of 46 found — see each chemical

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

  • cumulative level found: 9.21 ng/g (lipid weight) in blood serum
  • Low vs 116 tested in EWG/Commonweal studies (19th %ile)
  • Low vs 2,337 tested in CDC biomonitoring [1] (18th %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 Heather Gellert

36 chemicals

Bisphenol A, PFUnA (Perfluoroundecanoic acid), PFPeA (Perfluoro-n-pentanoic acid), PFOSA (Perfluorooctanesulfonic acid), PFHxA (Perfluorohexanoic acid), PFDoA (Perfluorododecanoic acid), PFDA (Perfluorodecanoic acid), PFBS (Perfluorobutane sulfonate), PFBA (Perfluorobutyric acid), Monomethyl phthalate, PBDE-37, PBDE-30, PBDE-7, PBDE-77, PBDE-85, PBDE-99, PBDE-155, PBDE-154, PBDE-203, PBDE-126, PBDE-13, PBDE-138, PBDE-166, PBDE-8, PBDE-11, PBDE-10, PBDE-105, PBDE-116, PBDE-32, PBDE-128, PBDE-181, PBDE-206, PBDE-207, PBDE-208, PBDE-209, PBDE-12


[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.)

[*] Concentration was above detection limits but below practical quantification limits and should be considered an estimate

See results for this participant's group