Table 1.
Twenty commonly found VOC pollutants in indoor air.
| VOCs | IDLH ppm |
PEL ppm |
LOD (without pre- oxidation) ppm |
LOD (with pre-oxidation) |
LOD(without pre-oxidation)/ LOD(with pre-oxidation) |
|
|---|---|---|---|---|---|---|
| ppm | %PEL | |||||
| Acetone | 2500 | 1000 | 1100 | 16 | 1.6% | 69 |
| Benzene | 500 | 1 | 5000 | 0.20 | 20% | 10000 |
| Camphene* | 225 | 45 | 140 | 1.1 | 2.4% | 130 |
| Chloroform | 500 | 50 | 290 | 0.60 | 1.2% | 480 |
| p-Dichlorobenzene | 150 | 75 | 100 | 1.6 | 2.1% | 63 |
| Ethanol | 3300 | 1000 | 130 | 0.50 | 0.05% | 260 |
| Ethyl acetate | 2000 | 400 | 760 | 7.4 | 1.9% | 100 |
| Ethylbenzene | 800 | 100 | 350 | 1.3 | 1.3% | 270 |
| Formaldehyde | 20 | 0.75 | 50 | 0.10 | 13% | 500 |
| d-Limonene* | 130 | 26 | 100 | 0.90 | 3.5% | 110 |
| Methylethylketone | 3000 | 200 | 1400 | 2.2 | 1.1% | 640 |
| Phenol | 250 | 5 | 0.50 | 0.60 | 12% | 0.80 |
| iso-Propanol | 2000 | 400 | 260 | 18 | 4.5% | 14 |
| Styrene | 700 | 100 | 100 | 0.50 | 0.5% | 200 |
| Toluene | 500 | 200 | 300 | 1.3 | 0.7% | 230 |
| 1,1,1-Trichloroethane | 700 | 350 | 8000 | 5.0 | 1.4% | 1600 |
| 1,2,4-Trimethylbenzene* | 135 | 27 | 300 | 0.60 | 2.2% | 500 |
| m-Xylene | 900 | 100 | 500 | 0.50 | 0.5% | 1000 |
| o-Xylene | 900 | 100 | 500 | 0.60 | 0.6% | 830 |
| p-Xylene | 900 | 100 | 550 | 0.60 | 0.6% | 920 |
| Average of 20 VOCs | 1006 | 214 | 1000 | 3.0 | 1.4% | 330 |
*
IDLH and PEL of these three VOCs are unknown; we have instead used 5% and 1% of their saturated vapor pressure to approximate their IDLH and PEL, respectively.