Table 1. Chemical–biological data-based grouping of petroleum substances in ToxPi.

#	Sample	Category	CAS	ToxPi (biological)	ToxPi (volatility)	ToxPi (chem-biol)
1	CON-01	SRGO a	64741-43-1	9.0	9.0	2.8
2	CON-02	SRGO a	68814-87-9	8.2	9.6	2.7
3	CON-03	SRGO a	68814-87-9	5.9	10.1	2.1
4	CON-04	SRGO a	68915-96-8	9.5	8.3	2.7
5	CON-05	SRGO a	64741-43-1	7.9	8.6	2.4
6	CON-07	OGO b	64742-46-7	4.1	11.1	1.8
7	CON-09	OGO b	64742-80-9	5.6	10.5	2.0
8	CON-12	VHGO c	64741-49-7	10.8	9.5	3.2
9	CON-13	VHGO c	64741-58-8	11.5	7.8	3.0
10	CON-14	VHGO c	64741-77-1	8.7	9.7	2.7
11	CON-15	VHGO c	64742-87-6	9.9	9.6	3.1
12	CON-16i	VHGO c	68334-30-5	8.8	12.7	2.9
13	CON-16ii	VHGO c	68334-30-5	7.9	10.6	2.8
14	CON-17	VHGO c	68476-30-2	6.3	11.3	2.5
15	CON-18	VHGO c	68476-31-3	10.2	8.5	3.2
16	CON-20	VHGO c	92045-24-4	10.5	8.1	2.8
17	CON-26	RAE d	64742-10-5	1.2	4.3	0.4
18	CON-27	RAE d	91995-70-9	2.7	4.4	0.7
19	A083/13	HFO e	68476-33-5	6.6	—	1.3
20	A087/13	HFO e	68476-33-5	3.6	—	0.8
21	A092/13	HFO e	68476-33-5	5.4	—	1.2

^aStraight run gas oil.

^bOther gas oil.

^cVacuum & hydrotreated gas oil.

^dResidual aromatic extract.

^eHeavy fuel oil.