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Descriptive statistics for indoor air BTEX analysis.
| Benzene | Toluene | Ethylbenzene | Xylenes | ||
|---|---|---|---|---|---|
| N | 509 | 509 | 509 | 509 | |
| Median (ppb) | 2.88 | 7.34 | 0.83 | 3.01 | |
| Minimum (ppb) | <0.4 | <1.8 | <0.7 | <2.5 | |
| Maximum (ppb) | 58.29 | 179.17 | 13.74 | 77.26 | |
| Concentration by Percentiles (ppb) | 25th | 1.19 | 3.03 | 0.34 | <2.5 |
| 75th | 5.92 | 14.68 | 1.74 | 8.05 | |
| 90th | 11.16 | 27.36 | 3.15 | 14.14 | |
