Table 1.
Summary of house-dust PAH measurements for nine PAHs.
| Individual PAH | Molecular weight |
Missing | Below detection |
Percent detected |
Non-missing and above detection |
Concentration (ng PAH per g dust) |
||
|---|---|---|---|---|---|---|---|---|
| Min. | Median | Max. | ||||||
| Benzo(a)anthracenea,b,c | 228 | 1 | 5 | 99.1% | 577 | <2 | 25 | 834 |
| Chrysenea,b,c | 228 | 1 | 0 | 100.0% | 582 | 7 | 73 | 1547 |
| Benzo(a)pyrenea,b,c | 252 | 16 | 9 | 98.4% | 558 | <2 | 40 | 1948 |
| Benzo(b)fluoranthenea,b,c | 252 | 5 | 1 | 99.8% | 577 | <2 | 59 | 2450 |
| Benzo(k)fluoranthenea,b,c | 252 | 11 | 0 | 100.0% | 572 | 3 | 40 | 814 |
| Indeno(1,2,3-c,d)pyrenea,b,c | 276 | 0 | 1 | 99.8% | 582 | <2 | 53 | 2371 |
| Dibenzo(a,h)anthracenea,b,c | 278 | 6 | 35 | 93.9% | 542 | <2 | 14 | 393 |
| Coronened | 300 | 25 | 8 | 98.6% | 550 | <4 | 94 | 636 |
| Dibenzo(a,e)pyrened | 302 | 5 | 4 | 99.3% | 574 | <4 | 27 | 713 |
PAH, polycyclic aromatic hydrocarbons.
a
Detection limit 2 ng per g dust.
b
Classified as probable human carcinogen by US Environmental Protection Agency.
c
Used in EPA’s 2002 National-Scale Air Toxics Assessment outdoor PAH model.
d
Detection limit 4 ng per g dust.