Table 5.

Comparison of PAH content of crude oil, oil residue, and smoke (vapor and particulate) and wood per gram of fuel consumed

µg of PAH/g of fuel consumed
Sample/layer thickness	3 rings	3 rings/methyl	4 rings	4 rings/methyl	5 or more	5 or more rings/methyl	total
Alberta sweet	290	1020	53	39	9	3	1440
Residue
2 mm	120	470	35	7	10	1	640
3 mm							380a
5 mm	50	240	17	5	4	1	320
10 mm							230a
Smokeb
2 mm	62 (120)c	2	69	2	71		210 (330)c
3 mm	100 (190)	2	130	3	110		350 (440)
5 mm	90 (230)	8	170	4	120		390 (530)
10 mm	180 (320)	8	260	4	180		630 (770)
Wood birchd	7	2	8	0.2	3		20

^aThe overall estimates for the 3 mm and 10 mm layers are based on the results for the 2 mm and 5 mm layers and the measured residue fraction.

^bIn computing the smoke results using Table 3, the missing PAH values such as benzo[a]fluoranthene for the 2 mm layer thickness are estimated based on related entries in Table 3 (the 3 mm test in the case of benzo[a]fluoranthene.

^cThe values in parentheses include acenaphthylene.

^dSee Ref. [20].