Effect of waste water on vegetable production

Abstract

This experiment was carried out in Ibadan, Oyo State Nigeria purposively selecting four sites where waste waters were used for growing vegetables. Water, soil and leafy vegetables (Amarantus) samples were collected randomly form each siute and subjected to analysis for heavy metals such as Lead, Nickel, Arsenic, Cadmium and Mercury at laboratories in Obafemi Awolowo University, Ile-Ife for leafy vegetables and University of Ibadan for soil and water analysis. The result showed that there are significant difference with the respect of contaminant presence in the waters and soils samples. With regard to the analysis results, specimen C (Eleyele dam) vegetable had the highest percentage value of Lead (0.28%) Arsenic (62.5%) and Cadmium (0.92%) which was influenced by the amount of heavy metals taken from both soil and water.