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Bulletin of the National Research Centre

Table 2 Concentration (mg/kg) of PAHs in the soil samples

From: Ecological risk assessment of the levels of polycyclic aromatic hydrocarbons in soils of the abandoned sections of Orji Mechanic Village, Owerri, Imo State, Nigeria

Sample points

Depth Cm

Nap

Apt

Aph

Flu

Phe

Ant

Fla

Pyr

Ban

Chy

Bbf

Bkf

Indp

Dbh

A1

0–10

ND

ND

7.6733E−2

4.5678E−2

1.6897E−2

1.6322E−2

3.5225E−2

1.3683E−2

7.9193E−3

1.8104E−2

3.2806E−2

2.1319E−2

1.5031E−1

7.1276E−1

A2

10–20

ND

4.0357E−3

5.3274E−2

4.0012E−2

1.3567E−2

1.3567E−2

2.4462E−3

1.4325E−3

6.5429E−2

1.7538E−2

1.8652E−2

4.7081E−2

1.6057E−2

4.4761E−1

A3

21–30

5.1213E−2

5.2943E−3

1.9538E−2

3.0336E−2

1.1953E−2

1.1713E−3

1.0474E−3

5.5089E−3

5.3285E−2

1.8237E−3

2.9364E−3

6.8081E−3

2.5737E−3

2.5134E−3

B1

0–10

9.8506E−3

3.1403E−2

2.7813E−3

1.7743E−2

9.4814E−2

1.0739E−3

5.2071E−2

7.7454E−3

1.0613E−3

2.8556E−2

1.8382E−2

3.0430E−3

2.2492E−2

1.8391E−1

B2

10–20

9.2034E−3

ND

3.5045E−2

2.3465E−2

7.5637E−2

1.6124E−3

3.6204E−2

6.2067E−1

4.3268E−3

1.2365E−2

1.4576E−2

5.2131E−3

3.0214E−2

1.4568E−2

B3

21–30

8.1505E−2

ND

3.3196E−2

3.0216E−2

3.7157E−3

2.6367E−3

6.8092E−3

5.6820E−3

7.1847E−3

1.3589E−2

1.0517E−2

7.9053E−3

4.3915E−2

3.7131E−2

C1

0–10

ND

ND

2.4263E−1

1.9757E−2

3.6310E−3

2.6884E−2

7.8186E−2

1.4682E−2

6.4659E−3

1.9373E−3

5.5477E−3

6.5511E−3

5.8884E−2

6.8789E−1

C2

10–20

ND

ND

ND

2.5487E−2

3.5212E−2

1.2501E−2

4.6215E−3

5.2106E−3

7.5247E−3

1.4352E−3

3.7640E−3

4.2150E−3

3.3709E−3

3.4616E−3

C3

21–30

ND

ND

ND

6.6979E−2

3.4497E−2

1.1460E−2

3.7249E−3

4.4552E−3

9.8061E−3

1.0618E−3

2.5553E−4

3.0949E−3

9.5634E−3

1.0108E−1

D1

0–10

ND

1.2176E−1

2.4567E−2

5.1073E−2

1.6584E−2

1.8098E−2

1.6473E−2

9..6417E−3

8.8207E−3

4.8779E−3

1.7660E−2

1.0690E−2

1.2781E−1

2.7585E−1

D2

10–20

ND

2.3104E−2

1.6902E−3

6.4319E−3

2.2509E−3

3.2645E−3

2.8768E−3

5.8427E−3

5.3728E−3

2.4380E−3

6.2087E−3

4.7307E−3

2.5681E−2

1.0453E−3

D3

21–30

ND

ND

3.0332E−4

2.6996E−4

1.1965E−3

6.2991E−4

4.5242E−4

6.0861E−4

2.5230E−4

9.1173E−4

7.5668E−4

3.2850E−4

9.0052E−3

1.2285E−2

E1

0–10

8.7405E−3

2.0321E−2

3.6702E−3

1.6632E−2

8.2712E−2

2.6478E−3

4.1263E−2

6.6243E−3

2.4513E−3

1.9667E−2

1.7493E−2

4.0342E−3

3.3281E−2

1.7482E−1

E2

10–20

3.4213E−3

5.0436E−3

3.7102E−3

3.0632E−3

6.3532E−3

1.4132E−3

5.2548E−3

2.4160E−3

1.5028E−3

1.3747E−2

1.6261E−3

1.6320E−3

1.7142E−3

1.6297E−2

E3

21–30

7.5413E−4

3.2503E−4

2.5310E−3

1.4321E−3

3.4814E−4

5.3737E−4

6.2351E−4

5.3462E−4

1.7312E−4

1.8376E−4

1.9282E−4

3.7465E−4

1.3254E−3

1.5376E−3

CN1.1

0–10

3.8829E−5

7.0078E−6

7.5519E−4

1.0435E−3

2.0795E−3

8.0111E−3

5.1001E−3

2.2468E−2

3.2689E−2

4.2723E−2

3.5993E−2

2.5419E−2

4.1336E−2

4.5334E−2

CN1.2

10–20

ND

ND

ND

6.0268E−4

3.6021E−3

4.6891E−4

6.5023E−4

3.2675E−3

4.3720E−3

3.9746E−3

5.2063E−3

1.9452E−3

5.4673E−2

3.4782E−2

CN1.3

21–30

ND

ND

ND

4.1677E−4

4.4250E−3

7.8225E−5

3.7531E−4

1.9577E−4

6.9676E−4

3.3613E−3

2.3631E−3

1.4015E−3

6.9065E−2

1.3865E−1

CN2.1

0–10

ND

ND

6.3152E−2

ND

1.9578E−2

3.3510E−2

2.7711E−2

8.0358E−3

2.4840E−3

9.2703E−3

1.3615E−2

1.5426E−2

1.1555E−1

4.0964E−1

CN2.2

10–20

ND

ND

5.4357E−2

2.4768E−3

3.2760E−3

3.4671E−3

1.0367E−2

5.2672E−3

4.5673E−4

6.3276E−3

6.2316E−3

3.5672E−3

1.3541E−3

3.2262E−1

CN2.3

21–30

ND

ND

1.0461E−2

1.5407E−3

2.9361E−3

9.6803E−4

7.7988E−3

2.8626E−3

6.4287E−4

2.1029E−3

4.6131E−3

1.8825E−3

1.6370E−2

1.3285E−1

Min

 

3.88E−05

7.01E−06

3.03E−04

2.70E−04

3.48E−04

7.82E−05

3.75E−04

1.96E−04

1.73E−04

1.84E−04

1.93E−04

3.29E−04

1.33E−03

1.05E−03

Max

 

9.85E−03

1.22E−01

2.43E−01

6.70E−02

9.48E−02

3.35E−02

7.82E−02

2.25E−02

3.27E−02

4.27E−02

3.60E−02

2.54E−02

1.28E−01

6.88E−01

Mean

 

1.50E−03

1.57E−02

2.66E−02

1.49E−02

2.07E−02

7.18E−03

1.67E−02

6.01E−03

5.35E−03

9.36E−03

9.17E−03

5.64E−03

3.70E−02

1.44E−01

STD

 

0.00

0.03

0.06

0.02

0.03

0.01

0.02

0.01

0.01

0.01

0.01

0.01

0.04

0.18

  1. where naphthalene (Nap), acenaphthylene (Apt), acenaphthene (Aph), fluorene (Flu), phenanthrene (Phe), anthracene (Ant), fluoranthene (Fla), pyrene (Pyr), benzo(a)anthracene (Ban), chrysene (Chy), benzo(b) fluoranthene (Bbf), benzo(k) fluoranthene (Bkf), indeno(1,2,3-cd)pyrene (Idp), dibenzo(a,h)anthracene (Dbh), standard deviation (STD), minimum (Min), maximum (Max)
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