EFFECTS OF INDUSTRIAL EFFLUENTS ON SOIL RESOURCE IN CHALLAWA INDUSTRIAL AREA, KANO, NIGERIA ........

The goal of the study was to see how industrial effluents affected the soil environment in the Challawa industrial region in Kano State, Nigeria. In the areas affected by industrial effluents and the neighbouring control area, profile pit soils were sampled. Physical (sand, silt, and clay) and chemical (pH, OC, AP, Ca, Mg, K, Na, N, ECEC) parameters of sampled soils were determined in laboratories. The investigation revealed that different horizons of the damaged pits had less sand than those found in the unaffected pit (average 615.78 and 670 respectively), Apart from the pH, nitrogen, and available phosphorus content of the soils, which were all lower at the horizons of the unaffected profile pits (on average, pH 6.45; N- 0.20 g/kg; AP- 3.97 mg/kg), all other chemical properties (exchangeable bases such as Ca (1.15 cmol/kg), Mg (0.4 cmol/kg), and Na (0.23 cmol/kg) were also lower. Other physical and chemical parameters of the soils collected, such as pH, organic carbon, total nitrogen, and accessible phosphorus, as well as Ca, Mg, K, and Na concentrations, were low in some pits and greater in others near the impacted area. The results of the investigation revealed that industrial effluents had badly tampered with the top and upper layers of the soil near the industrial site, and residents should be recommended to grow largely shallow-rooted crops and cultivate on land farther away from the effluent sludge.

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