| 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). |
