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014003 
Journal Article 
National human exposure assessment survey (NHEXAS): Distributions and associations of lead, arsenic, and volatile organic compounds in EPA Region 5 
Clayton, CA; Pellizzari, ED; Whitmore, RW; Perritt RL Quackenboss, JJ 
1999 
Journal of Exposure Science and Environmental Epidemiology
ISSN: 1559-0631
EISSN: 1559-064X 
381-392 
WOS:000086103500002 
The National Human Exposure Assessment Survey (NHEXAS) Phase I field study conducted in EPA Region 5 provides extensive exposure data on approximately 250 study participants selected via probability sampling. Associated environmental media and biomarker (blood, urine) concentration data were also obtained to aid in the understanding of relationships of the exposures to both contaminant sources and doses. Distributional parameters for arsenic (As), lead (Pb), and four volatile organic compounds (VOCs)--benzene, chloroform, tetrachloroethylene, and trichloroethylene--were estimated for each of the relevant media using weighted data analysis techniques. Inter-media associations were investigated through correlation analysis, and longitudinal correlations and models were used to investigate longitudinal patterns. Solid food appeared to be a major contributor to urine As levels, while Pb levels in household (HH) dust, personal air, and beverages all were significantly associated with blood Pb levels. Relatively high(>0.50) longitudinal correlations were observed for tap water Pb and As, as compared to only moderate longitudinal correlations for the personal air VOCs. 
NAAQS
• ISA-Lead
     Considered
     Cited
          1st Draft
          2nd Draft
          3rd Draft
          Final
     Atmospheric and Exposure Sciencies
IRIS
• Arsenic
     Initial Lit Search
          PubMed
          WOS
          ToxNet
     Considered
     Other Studies
          Exposure Assessment
     Health Effects Clusters
• Tetrachloroethylene (Perc) (Final, 2012)
     All References
     Exposure
• Trichloroethylene (TCE) (Final, 2011)
 
Arsenic 
Benzene 
Chloroform 
Confidence Intervals 
Environmental Exposure 
Great Lakes Region 
Humans 
Hydrocarbons, Chlorinated 
Lead 
Lod Score 
Longitudinal Studies 
Tetrachloroethylene 
Trichloroethylene 
 

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