Journal of Earth Sciences & Environmental Studies

ISSN: 2472-6397

Impact Factor: 1.135


Heavy Metals on Cassava Processing and the Environmental Effects in Central Nigeria.


BELLO Sikiti Garba, SALIHU Buhari Salam


Cassava (Manihot esculenta) has been considered as one of the major sources of carbohydrate in the world. Cassava can be processed into flakes (garri ), chips and Akpu. Locations and machines for the processing of cassava are also responsible for the pollution of the environment due to constant release of heavy metals from graters, dewatering machines and automobiles. These heavy metals are capable of affecting humans, animals and ecosystems. This research was carried out in some selected cassava processing local governments namely; Lafia, Obi, Keana and Wamba in Nasarawa state, Central Nigeria. The results of this research shows that heavy metals concentration are present in the cassava processing environment. Lead was identified to be in all the local government, which is above the WHO and US standards. Nickel, copper, Cadmium, Zinc and Manganese were also identified in a traceable quantity. If this is not remediated, its accumulation could be harmful to the soil thereby affecting the entire environments. The mineral contents Magnesium, Sodium and Potassium are significantly lower in all the local governments due to high cyanide concentration. The hydrogen cyanide concentration reduces the mineral contents and increases the acidity, which is detrimental to soil. Heavy metal pollution is of very serious public health concern due to their persistence, toxicity and non-biodegradability in the environment. This calls for an increasing public health concern and monitoring to avert the harmful effects on plants, animals and humans which share the same food chain by detoxifying the affected environments using Phytoremediation methods

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