Table 2.
Detected VOC concentrations in 24-hour indoor air samples (μg/m3).
| Chemical | Home A | Home B | Home C | Home D | Ohio EPA Indoor Standard due to Vapor Intrusion |
|---|---|---|---|---|---|
| 1,2,4-Trimethylbenzene | 99.2 * | ND | ND | 2.7 | 7.3 |
| 1,2-Dichloroethane | ND | ND | 2.47 * | ND | 0.94 |
| 1,3,5-Trimethylbenzene | 30 | ND | ND | ND | No standard |
| 1,3-Butadiene | ND | ND | 7.50 * | ND | 0.81 |
| 2-Butanone | ND | ND | 7.73 | ND | 5200 |
| 2-Propanol | 15.1 | 17.4 | 37.8 | 21 | No standard |
| 4-Ethyltoluene | 18.7 | ND | ND | ND | |
| 4-Methyl-2-pentanone | ND | ND | ND | 4.55 | 3100 |
| Acetone | 219 | 14.5 | 180 | 39.1 | 32000 |
| Benzene | 55.2 * | ND | 7.16 * | 4.5 * | 3.1 |
| Chloroform | 2.64 * | ND | ND | ND | 1.1 |
| Chloromethane | ND | ND | 9.37 | ND | 94 |
| Cumene | 5.16 | ND | ND | ND | 420 |
| Cyclohexane | 40.6 | ND | ND | ND | 6300 |
| Dichlorodifluoromethane | ND | 3.31 | ND | 2.67 | No standard |
| Ethylbenzene | 54.3 * | ND | 2.61 | 2.21 | 9.7 |
| Heptane | 74.8 | ND | ND | ND | No standard |
| Hexane | 195 | ND | ND | 2.93 | 730 |
| m,p-Xylene | 273 | ND | 9.42 | 9.68 | 1000 |
| Naphthalene | 2.20 * | ND | ND | ND | 0.72 |
| o-Xylene | 93.4 | ND | ND | 2.87 | 1000 |
| Styrene | ND | ND | 3.15 | ND | 1000 |
| Toluene | 376 | ND | 18.7 | 13.9 | 5200 |
| Trichlorofluoromethane | 35.2 | 3.03 | 2.87 | ND | 730 |
| Formaldehyde (μg/sample) | ND | 0.26 | 0.54 | 0.43 | No Standard |
*
Indicates that the VOC value is greater than the Ohio EPA indoor standard; ND = Not Detected.