bacteriological

Standard bacteriological methods and physico-chemical procedures were utilized in the determination of the isolation and enumeration of the culturable heterotrophic bacterial flora, MCPA utilizing bacteria and physico-chemical profile of top soils collected from a variety of edaphic sites under varying anthropogenic usages. The mean heterotrophic bacterial count ranged from 3.5 × 104 - 1.15 × 105 cfu/g. No MCPA-utilizing bacterial counts were recorded for all the soils after seven days. The observed differences in the mean counts were not significant (P>0.05).

Urine-impacted-soils were collected from different sampling points located within the vicinity of Iyaro Motor Park and analysed for physicochemical, aromatic hydrocarbon and bacteriological profiles. Standard analytical procedures which included serial dilution and pour plating, usage of appropriate meters, atomic absorption spectrophotometry and gas chromatography were employed in the evaluation of the bacteriological, physicochemical, heavy metal and poly aromatic hydrocarbon (PAH) profiles of the soils.