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  1. 1 Open Chemistry

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  1. 1 2009

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  1. 1 Amoo I.

  2. 1 Lajide L.

  3. 1 Ololade I.

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Spatial trends of petroleum hydrocarbons in water and sediments

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Ololade I., Lajide L., Amoo I.
Open Chemistry
|
2009
|
vol. 7
|
issue 1
83-89
EN
Seasonal changes in petroleum hydrocarbons in water and streambed sediment from selected oil-related areas of Ondo State, Nigeria have been examined using gravimetric and infrared methods. The highest and lowest total petroleum hydrocarbon concentrations (TPH) in water (sediments in brackets) gravimetrically were 3.49 mg L−1 (199.3) mg kg−1 and 0.003 mg L−1 (81.0) mg kg−1 while the concentrations found by IR were 24.0 mg L−1 (135.0 mg kg−1) and 14.0 mg L−1 (33.0 mg kg−1) respectively. The two seasons were positively correlated (α = 0.01) by both methods. The TPH level was well correlated with the sediment organic carbon (OC) during both seasons. The characteristic carbonyl (C=O) vibrations at 1650 cm−1 and 1700 cm−1 indicate oxidation of the oil residue. The study recommends further investigation into the type of organics present to evaluate their toxicity and appropriate remediation. [...]
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