Respiration Studies on Soil Treated with Some Hydrocarbons

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Abstract
Respiration studies, as measured by the uptake of O2, were made upon oil‐free and oil‐impregnated soils. A modified Haldane apparatus was used. Composite soil samples of oil‐impregnated soil obtained around oil wells showed greater biological activity than samples of oil‐free soil. The respiration rate was greater, however, in oil‐free soil cores than with oil‐impregnated soil cores. Crude oil, kerosene, and mineral oil were added at 2, 10, and 20% on a volume‐weight basis levels to a soil. Each percentage addition resulted in its own biological activity pattern but in general the trends were similar. In all cases, the soil with added hydrocarbon had a greater respiration rate than the untreated soil.

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