Table 3.
VOCs (μg/L) in the blood of people living in the United States and people living in Churchill County, Nevada.
| United States
|
Churchill County
|
|||
|---|---|---|---|---|
| VOCs | Median levels from NHANES IIIa | 95th percentile | Median levels of total study population | Percent > U.S. 95th percentile |
| 1,1,1-Trichloroethane | 0.13 | 0.8 | NC | 0.0 |
| 1,4-Dichlorobenzene | 0.33 | 9.2 | 0.08 | 0.0 |
| Benzene | 0.061 | 0.48 | 0.07 | 1.0 |
| Carbon tetrachloride | NCb | NC | NC | NC |
| Ethylbenzene | 0.060 | 0.25 | 0.05 | 2.0 |
| m-/p-Xylene | 0.19 | 0.78 | 0.26 | 2.0 |
| o-Xylene | 0.10 | 0.28 | 0.06 | 2.0 |
| Styrene | 0.041 | 0.18 | 0.05 | 8.0 |
| Tetrachloroethylene | 0.063 | 0.62 | 0.04 | 4.0 |
| Toluene | 0.28 | 1.5 | 0.2 | 1.0 |
| Trichloroethene | < LOD | 0.021 | NC | 5.0 |
NC, not calculated.
a
From Churchill et al. (2001). VOCs were not reported in the second NER (CDC 2003d).
b
Less than 60% of the study population had detectable levels of this chemical.