Physico-chemical characteristics of samples
Contaminated soils exhibited significantly lower (P <
0.05) moisture content which ranged from 23.7 to 56.5%
compared with 32.2 to 76.7% for uncontaminated
samples (Table 1). Values were observed to increase
with depths. Analysis of samples for lubricating oil
content revealed values ranging from 0.03 to 2.2 mg/g in
contaminated soils. No oil was detected in uncontaminated
samples. There were no significant differences
(P > 0.05) in the nutrient content ( -
N03 and 3
4 P0- ) of
contaminated and uncontaminated soils (Table 1).