DETERMINATION OF SOME HEAVY METALS IN FISH AND LIVESTOCK FEEDS, MANURE AND RIVERS IN SELECTED STATES IN NORTHERN NIGERIA

📄 Project Abstract

The increasing levels of environmental pollution by toxic metals from various sources have generated a great concern on their impact on human health. Rapid developments, increase in mining activities, farming, insurgency, industrial activities and waste disposals have gradually redistributed many of the toxic metals from the earth crust to the environment, raising the chances of exposure through ingestion, inhalation or skin contact. This study is aimed at determining the concentrations of zinc, copper, nickel, lead and arsenic metals in four compound fish feeds [FA, FB, FC and FD] poultry feeds [PA, PB, PC and PD], forage grasses; animal manure and major rivers (Kaduna, Sokoto and Ngadda) obtained in northern Nigeria. Brands of compound fish and poultry feed samples were collected from five different distributors of the feeds. Forage grass and manure samples from five different grazing pasture stations in north central, north western and north eastern zones of Nigeria were collected. ...