PAHs Ring group Molar mass SA SB SC Environmental standards for PAHs
CCME (Agric) BCME
(Agric)
Naphthalene 2 rings 128 17.2c 12.4b 9.74a 0.1 0.1
    (16.8-18.3) (11.5-13.2) (7.45-10.2)    
Acenaphthaene 3 rings 166 7.10b 3.30a 5.53b - -
    (6.23-8.45) (2.10-4.22) (3.23-6.38)    
Acenaphthylene 3 rings 166 6.32b 1.25a 1.40a - -
    (6.01-6.52) (0.21-3.04) (1.12-1.78)    
Fluorene 3 rings 166 7.25b 2.98a 3.19a - -
    5.12-8.12) (2.11-3.12) (2.34-4.7)    
Phenanthrene 3 rings 178 14.0c 7.99b 5.64a 0.1 0.1
    (12.5-14.9) (6.27-8.12) (4.23-6.23)    
Anthracene 3 rings 178 8.78b 6.86a 5.09a - -
    (8.10-9.14) (5.78-6.57) (3.21-5.89)    
Chrysene 4 rings 228 11.8c 8.53b 6.28a - -
    (10.2-12.4) (7.14-9.45) (4.37-7.10)    
Pyrene 4 rings 202 11.8b 6.86a 5.69a 0.1 0.1
    (9.81-12.9) (6.10-7.11) (3.54-6.10)    
Benzo(a)anthracene 4 rings 228 8.78b 6.86a 5.69a 0.1 0.1
    (8.10-8.98) (5.32-7.23) (4.25-6.78)    
Fluoranthene 4 rings 271 9.23b 4.82a 4.16a - -
    (8.95-10.3) (3.68-5.21) (3.23-5.67)    
Benzo(k)fluoranthene 5 rings 232 6.07b 3.44a 3.0a - -
    (5.78-6.89) (2.34-4.23) (2.34-3.89)    
Benzo(b)fluoranthene 5 rings 252 0.44b 0.26a 0.24a 0.1 0.1
    (0.27-0.61) (0.17-0.37) (0.15-0.38)    
Benzo(a)pyrene 5 rings 252 0.72a 0.64a 0.71a 0.1 0.1
    (0.53-0.97) (0.56-0.71) (0.48-0.97)    
Dibenzo(a,h)anthracene 5 rings 273 0.67c 0.30b 0.08a 0.1 0.1
    (0.56-0.72) (0.26-0.43) (0.05-0.14)    
Benzo(g,h,i)perylene 6 rings 273 0.96b 0.70b 0.11a - -
    (0.86-1.03) (0.41-1.54) (0.07-0.21)    
Indeno(1,2,3,c,d)pyrene 6 rings 278 0.78b 0.13a 0.20a 0.1 0.1
    (0.69-0.8) (0.11-0.15) (0.11-0.38)    
Total PAHs     112 67.3 56.8    
    3.28 4.6 5.8    
Organic carbon (%)     (3.01-3.91) (2.45-5.67) (3.45-6.2)    
Table 1: Initial concentrations (mg/kg) of PAHs and organic carbon content (%) in crude oil contaminated soil samples. SA, SB and SC=soil sample from location A, B and C respectively. These concentrations in each column are averages of nine results (n=27). CCME=Canadian Council of Ministers of the Environment (Agriculture); BCME=British Columbia Ministry of the Environment (Agriculture) (30); Phe/Ant ratio (SA=1.59, SB=1.16, SC=1.11); Flu/Pyr ratio (SA=0.78, SB=0.70, SC=0.73). Values in the brackets are ranges. Mean values in the same row with different superscripts (a,b,c) are significantly different (p ≤ 0.05).