about this participant:
Martha Davis, an environmental scientist from Littleton, CO, 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 10, 2005 at age 54.
November 10, 2005
health & safety concerns:
|chemicals found in this person|
|Brain and nervous system||27|
|Reproduction and fertility||27|
|Immune system (including sensitization and allergies)||5|
|Birth defects and developmental delays||2|
|Chronic effects, general||2|
Participant: Martha Davis
Found 38-42 of 70 tested chemicals
Martha Davis's blood and urine contained 38-42 of 70 industrial compounds, pollutants and other chemicals tested, including chemicals linked to brain and nervous system toxicity, reproductive toxicity and fertility problems, and immune system toxicity.
- Mercury exposure above the federal government's safe level
- This participant's samples show above average levels of BADGE-4OH, Methylmercury, Lead and Polybrominated diphenyl ethers (PBDEs) compared to all others in EWG studies
Summary of chemicals found in Martha Davis
|chemical family||level found||health effects||exposure routes|
|BADGE-4OH||high||Endocrine system||Food can linings, dental sealants|
|Lead||high||Lead-based paint in older homes, household dust, vinyl products, tap water|
|Methylmercury||high||Dietary sources, particularly seafood|
|Perfluorochemicals (PFCs)||moderate||Cancer, Birth defects and developmental delays, Endocrine system||Stain- and grease-proof coatings on food packaging, couches, carpets, pans|
|Phthalates||moderate||Endocrine system||Cosmetics, paint, soft plastic, food packaging, and other consumer products|
|Polybrominated diphenyl ethers (PBDEs)||moderate||Reproduction and fertility, Brain and nervous system||Foam furniture, carpet padding, computers, televisions, contaminated house dust, food|
Test results by chemical family (see each chemical)
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: 135 ng/mL (wet weight) in blood serum
- High vs 41 tested in EWG/Commonweal studies (96th %ile)
|0||ng/mL (wet weight) in blood serum||174|
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: 3.6 ug/dL (wet weight) in whole blood
- High vs 71 tested in EWG/Commonweal studies (91st %ile)
- High vs 8,373 tested in CDC biomonitoring  (91st %ile) (comparison based on congeners tested by CDC)
|0.222||ug/dL (wet weight) in whole blood||4.7|
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: 8.72 ug/L (wet weight) in whole blood
- High vs 88 tested in EWG/Commonweal studies (93rd %ile)
- High vs 8,373 tested in CDC biomonitoring  (99th %ile) (comparison based on congeners tested by CDC)
|0||ug/L (wet weight) in whole blood||25.9|
6 of 13 found — see each chemical
Includes Teflon, Scotchgard, Stainmaster. Linked to cancer and birth defects.
- cumulative level found: 22.8 ng/mL (wet weight) in blood serum
- Moderate vs 55 tested in EWG/Commonweal studies (40th %ile)
- Moderate vs 3,959 tested in CDC biomonitoring  (34th %ile) (comparison based on congeners tested by CDC)
|2.63||ng/mL (wet weight) in blood serum||77.7|
Total Perfluorochemicals (PFCs)
7 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: 372 ug/g creatinine in urine
- Moderate vs 72 tested in EWG/Commonweal studies (57th %ile)
- Moderate vs 8,020 tested in CDC biomonitoring  (60th %ile) (comparison based on congeners tested by CDC)
|102||ug/g creatinine in urine||10800|
22-26 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: 33.9 ng/g (lipid weight) in blood serum
- Moderate vs 116 tested in EWG/Commonweal studies (69th %ile)
- Moderate vs 2,337 tested in CDC biomonitoring  (48th %ile) (comparison based on congeners tested by CDC)
|1.11||ng/g (lipid weight) in blood serum||314|
Total Polybrominated diphenyl ethers (PBDEs)
Chemicals not found in Martha Davis
Bisphenol A, PFPeA (Perfluoro-n-pentanoic acid), PFBA (Perfluorobutyric acid), PFBS (Perfluorobutane sulfonate), PFDoA (Perfluorododecanoic acid), PFHpA (Perfluoroheptanoic acid), PFHxA (Perfluorohexanoic acid), PFOSA (Perfluorooctanesulfonic acid), PBDE-77, PBDE-7, PBDE-37, PBDE-32, PBDE-30, PBDE-209, PBDE-208, PBDE-207, PBDE-13, PBDE-8, PBDE-11, PBDE-10, PBDE-105, PBDE-116, PBDE-126, PBDE-128, PBDE-181, PBDE-203, PBDE-206, PBDE-12
 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.)