Table 2.
Outdoor, indoor and personal VOC concentrations in RIOPA (µg m−3).
| voc | Outdoor (n = 540) |
Indoor (n = 539) |
Personal (n = 544) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | 50th | 95th | Mean | SD | 50th | 95th | Mean | SD | 50th | 95th | |
| Benzene | 2.13 | 2.02 | 1.68 | 5.13 | 3.54 | 5.22 | 2.19 | 10.20 | 3.64 | 5.31 | 2.39 | 10.73 |
| Toluene | 6.78 | 6.48 | 3.56 | 18.93 | 15.26 | 24.74 | 10.39 | 39.55 | 19.12 | 37.31 | 12.42 | 50.10 |
| Ethylbenzene | 1.22 | 1.15 | 0.91 | 2.99 | 2.55 | 4.80 | 1.47 | 7.77 | 2.78 | 5.13 | 1.68 | 7.45 |
| m,p-Xylene | 3.47 | 3.67 | 2.42 | 9.98 | 7.39 | 16.07 | 4.05 | 22.49 | 8.07 | 15.49 | 4.42 | 22.60 |
| o-Xylene | 1.40 | 3.63 | 0.96 | 3.22 | 2.49 | 4.84 | 1.47 | 7.44 | 2.87 | 5.59 | 1.72 | 7.92 |
| MTBE | 8.13 | 10.08 | 5.32 | 22.32 | 11.96 | 27.63 | 6.02 | 36.14 | 14.77 | 42.67 | 7.14 | 42.05 |
| Styrene | 0.49 | 0.60 | 0.42 | 1.19 | 1.48 | 4.29 | 0.42 | 5.12 | 1.55 | 4.31 | 0.42 | 5.32 |
| 1,4-DCB | 2.09 | 17.25 | 0.46 | 3.59 | 69.88 | 307.48 | 1.40 | 334.28 | 56.83 | 229.37 | 1.88 | 304.56 |
| TCE | 0.28 | 0.29 | 0.22 | 0.80 | 0.99 | 7.29 | 0.22 | 1.74 | 1.44 | 10.74 | 0.22 | 2.37 |
| PERC | 0.95 | 1.32 | 0.61 | 3.11 | 1.85 | 4.53 | 0.82 | 6.03 | 7.17 | 112.35 | 0.89 | 6.82 |
| Chloroform | 0.32 | 0.99 | 0.21 | 0.75 | 1.86 | 2.97 | 0.94 | 5.97 | 4.25 | 52.49 | 1.04 | 6.36 |
| CTC | 0.66 | 0.21 | 0.64 | 0.99 | 0.71 | 0.99 | 0.62 | 1.11 | 0.80 | 2.44 | 0.62 | 1.06 |
| d-Limonene | 1.90 | 6.22 | 0.64 | 5.77 | 31.59 | 108.47 | 9.95 | 103.05 | 41.14 | 238.90 | 11.77 | 112.15 |
| α-Pinene | 1.24 | 3.82 | 1.02 | 1.80 | 7.14 | 14.76 | 2.67 | 26.83 | 6.85 | 16.25 | 2.88 | 22.48 |
| β-Pinene | 0.86 | 0.96 | 0.51 | 1.10 | 4.95 | 11.08 | 1.27 | 20.77 | 5.53 | 13.07 | 1.52 | 21.46 |
SD, standard deviation; 50th, the 50th percentile; 95th, the 95th percentile; MTBE, methyl tert-butyl ether; 1,4-DCB, 1,4-dichlorobenzene; TCE, trichloroethylene; PERC, tetrachloroethene; CTC, carbon tetrachloride.