POLLUTION POTENTIAL AND CHEMICAL INTERACTION OF SOME PHYSICOCHEMICAL PARAMETERS OF SOIL CONTAMINATED WITH E-WASTE

The rapid increase in the amount of electronic waste in our environment is of great concern. This studyinvestigated the contamination level, pollution potential and chemical interaction of cation exchange capacity(CEC), total nitrogen (TN), total phosphorus (TP), electrical conductivity (EC), total organic carbon (TOC), totalorganic matter (TOM) and pH, on soil contaminated with electronic waste and background soil (unpolluted soil).It was found that CEC has the highest pollution values, which range from 194,616.00(10-20 cm)- 221,024.760mg/kg (0-10 cm) for the polluted soil, which show a remarkable variation from the background soil. The TNvalue range from 139.257 -185.654 mg/kg across depths. The values of EC on polluted soil ranged from 0.260– 0.746 mg/kg across depths. While that of TOC and TOM, ranged from 4,250.00 – 5,800.000 mg/kg and8,300.000 – 10,000.000 mg/kg across depths, the values of pH for the polluted soil also ranged from 6.2 – 7.1across depths. The pollution potential also showed high values across depths, the TOM, which ranged from48.473 – 61.450 and TOC are almost of the same ranged with the TOM. The TN and TP were very low and theEC exerted negative pollution potential in all the depths. The chemical interaction showed high values in TNwhich ranged from 12,776.708 - 9,419.512 across depths, followed by TP and CEC which also display highvalues, but lower than that of TN. The EC values were low, which ranged from 1.620 – 5.984 across depths. TheTOC and TOM were very low when compared to the rest parameter in the chemical interaction. The high valuesobtained in some of the parameters compared with the standard values, call for need for strict monitoring of thedisposal of e-waste in our environment.