Table 6.

Calculated concentrations in urine samples from three NS = non-smokers and four S = smokers, in nanograms per liter, based on the average of the three techniques studied. Average NS and S concentrations are presented in bold

	NS1	NS2	NS3	NS	S1	S2	S3	S4	S
4IMB	31	64	25	40	78	173	130	145	132
3C4FIB	0.6	0.6	0.5	0.6	0.6	0.4	1.0	0.9	0.8
1C2IB	13	17	13	15	22	19	34	29	26
2I13DMB	2.5	3.9	1.6	3	5.2	24	21	46	24
24DCIB	0.2	0.2	0.3	0.3	0.3	0.4	0.5	0.8	0.5
245TCIB	0.5	0.7	1.2	0.8	2.9	0.8	0.8	0.5	1.2