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Outdoor Conc. |
Indoor Conc. |
Indoor Conc. |
Odor Thresholda |
Derived ERb |
Predicted ERc |
Pred/Deriv w/in 2 x? |
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| Compound | (µg m-3) | (µg m-3) | (ppb) | (ppb) | (mg h-1) | (mg h-1) | Y/Nd | ||
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| α-Pinene | 1.4 | 232 | 41.6 | 692 | 25 ± 4 | 12.9 - 31 | Y | ||
| β-Pinene | <0.5 | 73.9 | 13.3 | Nde | 8.1 ± 1.3 | 3.4 - 7.8 | Y | ||
| d-Limonene | <0.5 | 40.3 | 7.2 | 437 | 4.4 ± 0.7 | 3.3 - 12.6 | Y | ||
| Formaldehyde | 4.7 | 94.9 | 77.4 | 871 | 9.9 ±1.6 | 11.7 - 12.2 | Y | ||
| Acetaldehyde | 4.6 | 42.5 | 23.6 | 186 | 4.2 ±0.7 | 2.0 - 3.0 | Y | ||
| Pentanal | <0.5 | 72.9 | 20.7 | 6.0 | 8.0 ± 1.3 | 3.7 - 4.1 | N | ||
| Hexanal | 1.5 | 267 | 65.3 | 13.8 | 29 ± 5 | 22 - 24 | Y | ||
| 2-Furaldehyde | <0.5 | 15.4 | 3.9 | 776 | 1.69 ± 0.27 | 0.93 - 0.95 | Y | ||
| Heptanal | 0.7 | 25.3 | 5.4 | 4.8 | 2.7 ± 0.4 | 0.53 - 0.59 | N | ||
| 2-Heptenal | <0.5 | 13.7 | 3.0 | 13.5/6.0f | 1.51 ± 0.24 | 0.61 - 0.69 | N | ||
| Benzaldehyde | 5.5 | 18.8 | 4.3 | 41.7 | 1.46 ± 0.23 | 1.06 | Y | ||
| Octanal | 1.5 | 44.3 | 8.5 | 1.3 | 4.7 ± 0.7 | 1.19 - 1.29 | N | ||
| 2-Octenal | <0.5 | 19.3 | 3.7 | 2.0/0.7f | 2.1 ± 0.3 | 1.52 - 1.69 | Y | ||
| Nonanal | 5.8 | 46.6 | 8.0 | 2.2 | 4.5 ± 0.7 | 2.8 - 3.0 | Y | ||
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a Odor thresholds are from Devos et al. (1990) except as noted
b Derived emission rates (ERs) ± 1 stdev. are calculated from measured concentrations and house parameters c Predicted whole-house ERs are sums of ERs for wood and wood product sources; range is established using minimum and maximum values for duplicate PB top and plywood subfloor specimens d Y/N = Average predicted ER is within factor of 2 of derived ER, Yes or No? e Nd = No odor threshold data available f cis Isomers of 2-heptenal and 2-octenal have lower odor thresholds than trans isomers (Ranson and Belitz (1992) |
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