International Journal of Marine Science 2016, Vol.6, No.48, 1-10
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Table (4) Regional concentration of polycyclic aromatic hydrocarbons (ng/g)dry weight in soil of west Qurna-2 oil field during
spring season 2016.
PAHs compounds
Station1
2
3
4
5
6
7
8
9
10
Naphthalene
0.054
0.035
0.018
0.070
0.021
0.049
0.013
0.036
0.040
0.046
Acenaphthylene
0.044
0.049
0.042
0.126
0.147
0.117
0.172
0.158
0.250
0.190
Acenaphene
0.023
0.033
0.037
0.072
0.115
0.069
0.081
0.119
0.131
0.087
Fluorene
0.087
0.157
0.094
0.216
0.239
0.250
0.270
0.391
0.299
0.304
Phenanthrene
0.146
0.152
0.185
0.270
0.270
0.303
0.287
0.414
0.492
0.564
Anthracene
0.044
0.094
0.030
0.249
0.523
0.121
0.207
0.404
0.075
0.250
Fluoranthene
0.063
0.094
0.068
0.148
0.189
0.187
0.252
0.292
0.165
0.532
Pyrene
0.047
0.098
0.080
0.490
0.237
0.217
0.630
0.420
0.247
0.455
Benzo(a)anthracene
0.090
0.084
0.039
0.194
0.332
0.132
0.207
0.377
0.147
1.025
Chrysene
0.011
0.031
0.032
0.051
0.056
0.070
0.077
0.085
0.211
0.131
Benzo(b)fluoranthene
0.014
0.021
0.016
0.039
0.056
0.045
0.086
0.073
0.036
0.131
Benzo(k)fluoranthene
0.116
0.058
0.188
0.166
0.135
0.151
0.070
0.277
0.162
0.525
Benzo(a)pyrene
0.050
0.121
0.082
0.235
0.269
0.286
0.352
0.524
0.250
0.471
Carbazole
0.089
0.132
0.172
0.332
0.271
0.428
0.342
0.622
0.986
0.879
Indo(1,2,3-cd)pyrene
0.014
0.036
0.049
0.039
0.060
0.083
0.076
0.090
0.250
0.123
Dibenzo anthracene
0.043
0.078
0.164
0.076
0.112
0.182
0.146
0.186
1.087
0.264
Benzo(g,h,i)perylene
0.015
0.075
0.205
0.019
0.043
0.140
0.141
0.079
0.761
0.145
Total
0.950
1.348
1.501
2.792
3.075
2.830
3.409
4.547
5.589
6.122
Fluoranthen/pyrene
1.340
0.959
0.850
0.302
0.797
0.861
0.400
0.695
0.668
1.169
Phen/Ant
3.318
1.617
6.166
1.084
0.516
2.504
1.386
1.024
6.560
2.256
LMW/HMW
0.942
0.836
0.049
0.701
0.957
0.631
0.602
0.663
0.350
0.475
Ant/(Ant+Phen)
0.231
0.231
0.139
0.479
0.659
0.285
0.419
0.493
0.132
0.307
BaA/(BaA+Chry)
0.891
0.730
0.549
0.791
0.855
0.653
0.728
0.816
0.410
0.886
InP/(InP+BghiP)
0.482
0.324
0.192
0.672
0.582
0.372
0.350
0.532
0.247
0.458
LMW/HMW ratio ranged from (0.049) at station 3 in spring to (1.597) at station 4 in summer. PAHs compounds
according to the LMW/HMW ratio, the main source of PAHs in soil of West Qurna-2 oil field was pyrogenic
origin, phenanthrene/anthracene ratio was ranged from (0.616) at station 2 in Summer to (6.714) at station 8 in
summer. According to the ratio values, the source of PAHs in soil was pyrogenic.
The flouranthene/pyrene ratio ranged from (0.157) at station 3 in summer to (2.054) at station 4 in autumn.
According to the ratio values, the source of PAHs in soil was pyrogenic (combustion sources) and petrogenic
(petroleum contaminations).
BaA/(BaA+Chry) Ratio was ranged from (0.410) at station 9 in spring to (0.947) at station 1 in summer.
According to the ratio values, the source of PAHs in soil was pyrogenic.
InP/(InP+BghiP) Ratio was ranged from (0.129) at station 6 in winter to (0.693) at station 9 in summer. According
to the ratio values, the source of PAHs in soil was petrogenic or pyrogenic.
Ant/(Ant+Phen) ranged from (0.129) at station 8 in Summer to (0.659) at station 6 in spring. According to the
ratio values, the source of PAHs in soil was pyrolytic.
Our data indicate that the level of PAHs which observed in west Qurna -2 oil field lie within the range of values
reported for comparable areas Table (7).
