Table 1.

Results of chemical analysis.

PAHs
Compound (ng/mg DEP)	B0	B30	B100	NEXBTL100
Fluoranthene	41.9	110	117	39.4
Pyrene	67.7	152	144	43.1
Benz[a]anthracene *	6.6	9.8	26.1	5.0
Chrysene *	5.1	6.0	12.5	1.0
Benzo[b]fluoranthene *	1.2	1.4	7.0	0.3
Benzo[k]fluoranthene *	n.d.	n.d.	2.6	n.d.
Benzo[a]pyrene *	0.6	0.9	1.7	1.2
Benzo[g,h,i]perylene	2.2	2.8	3.8	2.0
Dibenz[a,h]anthracene *	n.d.	n.d.	n.d.	n.d.
Indeno[1,2,3-cd]pyrene *	0.7	0.8	1.8	n.d.
4H-Cyclopenta[d,e,f]phenathrene	2.8	3.8	4.3	9.4
Benzo[c]phenanthrene	1.9	3.8	4.0	1.3
Benzo[j]fluoranthene	2.4	2.8	6.4	2.0
Benzo[e]pyrene	0.7	0.6	3.6	0.3
Triphenylene	9.0	3.6	4.0	1.1
Benzo[c]chrysene	n.d.	n.d.	0.2	n.d.
Coronene	0.8	0.7	0.7	0.6
Methylated PAHs
Compound (ng/mg DEP)	B0	B30	B100	NEXBTL100
1-Methylpyrene	5.1	7.2	3.9	1.4
2-Methylpyrene	8.5	11.0	8.0	2.9
4-Methylpyrene	10.0	13.4	12	3.7
1-Methylchrysene	0.3	0.3	1.2	n.d.
7-Methylbenz[a]anthracene	0.3	n.d.	n.d.	0.2
Oxygenated PAHs
Compound (ng/mg DEP)	B0	B30	B100	NEXBTL100
1,8-Naphthalic Anhydride	25.4	29.5	29.7	19.8
Phenanthrene-9,10-dione	1.3	0.8	0.8	0.5
9H-Fluoren-9-one	4.3	2.8	1.7	4.7
Anthrone	n.d.	n.d.	n.d.	n.d.
Anthracene-9,10-dione	2.7	4.5	4.0	2.6
7H-Benz[d,e]anthracene-7-one	1.4	1.5	2.4	0.28
9-Hydroxybenzo[a]pyrene	0.06	0.07	0.09	0.07
Benz[a]anthracene-7,12-dione	0.02	0.04	0.15	0.01
3-Hydroxybenzo[a]pyrene	0.05	0.05	0.10	0.02
Nitrated PAHs
Compound (pg/mg DEP)	B0	B30	B100	NEXBTL100
1-Nitropyrene	314	539	1504	126
2-Nitropyrene	25.0	12.0	23.0	n.d.
4-Nitropyrene	18.0	16.0	44.0	10.0
3-Nitrofluoranthene	7.0	16.0	41.0	2.0
Dinitrated PAHs
Compound (pg/mg DEP)	B0	B30	B100	NEXBTL100
1,3-Dinitropyrene	1.6	2.4	17.7	0.4
1,6-Dinitropyrene	1.2	5.6	65.0	n.d.
1,8-Dinitropyrene	0.9	4.6	48.0	n.d.

* Human carcinogens (IARC). PAHs, polycyclic aromatic hydrocarbons; DEP, diesel exhaust particles; n.d., not detectable.