Levels of PCBs and PAHs in Bahrain soil

Al-Haddad, Ameera; Madany, Ismail M.; Abdullah, F.

doi:10.1016/0160-4120(93)90088-y

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…The levels of PBCs contamination in the soils studied were much lower than the recommended limits of 25 mg/kg and 33 mg/kg set by the Canadian Soil guide [37], and the US EPA [38], respectively. The levels were comparable to levels detected in soils in Linfen city, China [39], lower than those found in soils elsewhere in Bahrain [40], Moscow region [41], Switzerland [42], Belarus [43], New York [44], Shanghai [45], but higher than those found in Poland [46].…”

Section: Pcb Levels Distribution and Congener Profilesupporting

confidence: 52%

Spatial and Temporal Distribution of Polychlorinated Biphenyl Residues in Tropical Soils

Bentum¹,

Dodoo²,

Kwakye³

et al. 2016

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Polychlorinated biphenyls (PCBs) in tropical soil samples from the Central Region of Ghana, and their variation with the soil characteristics were assessed. The soil characteristics of seventy eight samples were first determined. The PCBs was extracted with (1:1) hexane:acetone mixture, and then the extract treated with concentrated H 2 SO 4 , 5% KMnO 4 and copper. The extract was finally eluted from a silica gel column with hexane:dichloromethane (97:3 v/v), and the PCBs analyzed using a gas chromatograph equipped with 63 Ni electron capture detector (GC-ECD model CP 3800). The composition of PCBs homologous in the soils followed the order: hexa-PCBs (31.89%) > penta-PCBs (23.98%) > tri-PCBs (18.47%) > tetra-PCBs (13.67%) > hepta-PCBs (11.99%). The PCB congener profile in the study area was PCB 28 > PCB 153 > PCB 138 > PCB 52 > PCB 101 > PCB 180 > PCB 118. The mean concentration of the PCB congeners (dry matter basis) was PCB 28, 2.27 ± 2.436; PCB 52, 1.84 ± 2.27; PCB 101, 2.17 ± 2.52 µg/kg; PCB 118, 0.83 ± 0.89 µg/kg; PCB 138, 0.99 + 0.91 µg/kg; PCB 153, 1.18 ± 1.11 µg/kg and PCB 180, 1.18 ± 1.19 µg/kg. The mean concentrations of ΣPCBs were 9.15 ± 0.52 µg/kg for the surface soils (0 -10 cm), 7.55 ± 0.56 µg/kg and 7.82 ± 0.55 µg/kg for the 10 -20 cm and 20 -30 cm sub-surface soils respectively. Significant but weak correlations were observed between PCBs and the soil pH, moisture, and exchangeable base. The coefficient of determination for all significant correlations was between 6.6% and 18.75%.

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Section: Pcb Levels Distribution and Congener Profilesupporting

confidence: 52%

Spatial and Temporal Distribution of Polychlorinated Biphenyl Residues in Tropical Soils

Bentum¹,

Dodoo²,

Kwakye³

et al. 2016

OJAppS

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“…In this concern, Wild et al [29] reported that concentrations of PAHs in UK soils are in the range of 0.1-54 mg/kg with a mean of 2.32 mg/kg. Moreover, Al-Haddad et al [30] estimated the PAHs components in Bahrain soil and concentrations of various PAHs were found to fall within the range 0.01-42.58 mg/kg. Accumulation of PAHs in road dust should affect other media (e.g., air, drinking water, soil, dust and plants) and significant exposure risk for human populations is strongly expected [31][32][33].…”

Section: Introductionmentioning

confidence: 98%