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Effect of Petroleum Products on Soil Catalase and Dehydrogenase Activities

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DOI: 10.4236/ojss.2014.412040    3,271 Downloads   4,499 Views Citations

ABSTRACT

The effect of refined petroleum products on the activities of selected enzymes (catalase and dehydrogenase) was studied. There was a significant decrease (p < 0.01) in catalase activity. Catalase activity was higher in diesel and engine-oil treated soil after twelve days relative to petrol and kerosene. These observations indicate that the enzyme activity is the order of petrol > kerosene > diesel > engine oil. However, a significant increase (p < 0.01) was observed in dehydrogenase activity after twelve days relative to control values. Although, the refined petroleum products caused a similar pattern in the alteration of soil dehydrogenase activity, as they affected catalase activities, the general results indicate that the toxic effect is in the order of kerosene > diesel > petrol > engine oil. On the whole the results reveal that refined petroleum products alter soil biochemistry.

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Achuba, F. and Okoh, P. (2014) Effect of Petroleum Products on Soil Catalase and Dehydrogenase Activities. Open Journal of Soil Science, 4, 399-406. doi: 10.4236/ojss.2014.412040.

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