Kleinheinz and Bagley Table I

TABLE 1

GC-MS identification of the five most abundant aromatic and aliphatic compounds within the PHC mixture prior to, and after 48 hours of biodegradation.

^Compound	Day 0^a	Day 2^a
Aromatics	.	.
1,3,5-Trimethylbenzene Naphthalene 2-Methylnaphthalene 1,5-Dimethyl-naphthalene Anthracene	1.56^b 3.20 3.87 5.30 0.93	ND(<0.5ng/µl) ND(<0.5ng/µl) ND(<0.5ng/µl) ND(<0.5ng/µl) ND(<0.5ng/µl)
Alkanes	.	..
Tridecane Tetradecane Pentadecane Heptadecane Nonadecane	1.89 1.85 3.12 3.75 ND(<0.5ng/µl)	5.60^d 3.16(±0.70) 4.40(±0.74) 9.27^d 5.17^d

^aPercent the specific compound makes-up of the total PHCs in liquid degradation systems; Day 0 represents the starting percent for these compounds in this study.

^bThe number listed represents the listed compounds percent of the total PHCs present in the sample.

^cND=Not detectable(Minimum detection limit)

^dOne of the two samples was not positively identified by the GC-MS (<90% match with the HP Chemstation library); ± is the standard deviation of two samples when positively identified by the GC-MS.