LEED Report - Environment & Human Health, Inc.

The Green Building DebateNHANES FindingsPopulation Subgroups At RiskThe prevalence of elevated blood lead levels(BLLs) among children decreased 84% from 1988to 2004, but the majority of U.S. children still havesome low-level exposure to lead.Elevated blood lead levels (BLLs) in U.S. childrencontinue to decrease, and disparities have lessened;the mean BLLs and distribution of BLLs continue tobe higher for low-income children; non-Hispanicblack children, and children living in older housingstock (built before 1950). 8Residues of banned pesticides chlordane, aldrin,dieldrin, and heptachlor persist in humans and inthe environment. Insecticide urinary metabolitesare found in those not occupationally exposed.Detectable levels of metabolites MEP, MBP, MBzPand MEHP found in more than 75% of the samples,suggesting widespread exposure to phthalates inthe United States.Metabolites found in adults, adolescents and children.Females of all ages had significantly higher concentrationsof the reproductive toxicant MBP;non-Hispanic blacks had significantly higherconcentrations of MEP.PFOS, PFOA, PFHxS and PFNA detected in more than98% of the samples.In 2003-2004, PFOS, PFOA, PFHxS, and PFNA serumconcentrations were measurable in all populationgroup studied. Concentrations differed byrace/ethnicity and sex.CDC measured 212 volatile organic chemicals inpeople’s blood or urine, including VOCs such asbenzene, chlorobenzenes, halognated solvents,nitrobenzene, styrene, toluene and xylenes. 16Socioeconomic, demographic and behavioral factorshave been shown to influence personal exposures toair pollutants.63