Heavy Metal Contamination and It’s Cancer Risk in Swampy Agricultural Soils across Karu, Nasarawa West, Nigeria

Main Article Content

Usman Rilwan
Auta Abdullahi Abbas
Shu’aib Muhammad
Hassan Abdullahi Abdullahi

Abstract

Swampy agricultural soils could be contaminated as a result of accumulation of heavy metals through emission from industrial areas, mines tailings, metal wastes, gasoline, paints, fertilizers, manure, sewage sludge, pesticide, waste water irrigation, coal combustion residue, spillage of petrochemicals and atmospheric deposition. This study aimed at evaluating the carcinogenic and non-carcinogenic risk of the study area using X-Ray fluoroscopy. The results showed that, mean concentration level in the area was in decreasing order Cu(342.2) > Cr(486.6) > Ni(339.1) > Zn(421.6) >Pb(331) > Cd(336.6) > As(31.7). The Hazard Quotient (HQ) was all recorded to be low except ingestion adult which was higher than unity. The Hazard Index (HI) was also recorded to be 2.3 a value greater than one (>>1). This makes non-carcinogenic effects significant to the population and poses serious effects in the area under study. The total excess life cancer risk was found to be (5.0 x 10-2), a value greater than that of U.S (1.0x10-4 to 1.0x10-6) and above that of South Africa (5.0x10-6). This implies that there is a probability that one person in 1,000 may be affected. Regular monitoring and evaluation of the soils and the crops cultivated at the sample locations is recommended.

Keywords:
Heavy metals, swampy, agricultural, soils, rain-fed rice, risk exposure.

Article Details

How to Cite
Rilwan, U., Abbas, A. A., Muhammad, S., & Abdullahi, H. A. (2020). Heavy Metal Contamination and It’s Cancer Risk in Swampy Agricultural Soils across Karu, Nasarawa West, Nigeria. International Research Journal of Oncology, 3(2), 1-12. Retrieved from https://journalirjo.com/index.php/IRJO/article/view/30124
Section
Original Research Article

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