Table 1.
Indoor VOC concentrations across all sampling locations.
| VOC (µg/m3) | CAS Number | Detection Frequency (%) | Mean Indoor Concentrations | Median Indoor Concentrations | Standard Deviation | Min | Max |
|---|---|---|---|---|---|---|---|
| Benzene | 71-43-2 | 100 | 25.7 | 16.1 | 23.2 | 9.1 | 105.4 |
| Carbon tetrachloride | 56-23-5 | 100 | 1.0 | 1.0 | 0.2 | 0.6 | 1.5 |
| d-Limonene | 5989-27-5 | 100 | 1.8 | 1.4 | 1.2 | 0.2 | 4.2 |
| Dimethylfuran, 2,5- | 625-86-5 | 50 | 0.1 | 0.3 × 101 | 0.2 | 0.0 | 0.7 |
| Dioxane, 1,4- | 123-91-1 | 95 | 0.2 | 0.1 | 0.1 | 0.0 | 0.4 |
| Ethylbenzene | 100-41-4 | 100 | 5.2 | 2.5 | 10.4 | 1.0 | 48.2 |
| Isopropylbenzene | 98-82-8 | 100 | 0.4 | 0.2 | 0.6 | 0.1 | 3.0 |
| m,p-Xylene a | 179601-23-1 | 100 | 10.7 | 6.2 | 15.7 | 2.4 | 74.2 |
| Naphthalene | 91-20-3 | 100 | 7.6 | 2.2 | 13.8 | 0.7 | 60.0 |
| o-Xylene | 95-47-6 | 100 | 4.2 | 2.4 | 6.5 | 0.9 | 30.5 |
| p-Dichlorobenzene | 106-46-7 | 100 | 5.1 | 0.4 | 12.1 | 0.2 | 42.0 |
| p-Isopropyltoluene | 99-87-6 | 100 | 0.2 | 0.1 | 0.1 | 0.1 | 0.4 |
| Propylbenzene | 103-65-1 | 100 | 0.8 | 0.4 | 1.3 | 0.2 | 5.9 |
| sec-Butylbenzene | 135-98-8 | 100 | 0.2 | 0.1 | 0.4 | 0.0 | 1.8 |
| Styrene | 100-42-5 | 100 | 1.8 | 0.9 | 4.0 | 0.4 | 18.7 |
| Trimethylbenzene, 1,2,3- | 526-73-8 | 100 | 1.7 | 1.1 | 1.6 | 0.5 | 6.8 |
| Trimethylbenzene, 1,2,4- | 95-63-6 | 100 | 4.0 | 2.7 | 4.1 | 0.9 | 18.2 |
| Trimethylbenzene, 1,3,5- | 108-67-8 | 100 | 1.6 | 0.9 | 1.7 | 0.4 | 7.9 |
| Toluene | 108-88-3 | 100 | 21.9 | 12.5 | 34.7 | 6.2 | 163.4 |
| Xylenes (mixed) b | 1330-20-7 | 100 | 14.8 | 8.8 | 22.2 | 3.3 | 104.7 |
Abbreviations: CAS Chemical abstract service. a m- and p-xylene could not be chromatographically separated, and were treated as one compound; b Mixed xylene was the sum of m-, p-, and o-xylenes.