HEAVY METAL ACCUMULATION IN THE EDIBLE LEAFY PARTS OF AFRICAN NIGHTSHADE (Solanum Scabrum Mill) IRRIGATED WITH VARYING WATER QUALITY

  • Peter Ngugi Kamande Department of Environmental Science, School of Environmental Studies
  • Dr. Rachel, . N Kabuyah Kenyatta University
  • Dr. Ezekiel Ndunda Kenyatta University,
DOI: https://doi.org/10.53555/ar.v3i8.101
Keywords: experimental study, accumulates, RCBD

Abstract

This experimental study was carried out to assess how heavy metals accumulates in
the edible leafy parts of African nightshade (Solanum Scabrum Mill) irrigated with varying
water quality. Different types of water used included wastewater, tap water, water from
shallow wells and from borehole. The experiment was carried out under randomized
complete block design (RCBD) with four replications. From the results, crop samples grown
using deep well registered the highest mean value in regard to Zn2+, Mn2+ and Pb2+
concentration at 37.17 (3.70), 10.63 (0.48) and 8.49 (0.35) ppm respectively. Low
concentration of heavy metals Pb2+, Cu2+ and Cd2+ at 4.36 (0.40), 3.98 (0.20) and 2.09(0.12)
respectively was detected in crops samples grown using tap water. This is an indication that
tap water possess ability to flush out the toxins in the soils. As compared to the WHO
standards, the values of Cd2+ and Pb2+ were significantly above the recommended limits
across all the blocks for the plant samples which will result to bioaccumulation in the long
run.

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Author Biographies

Peter Ngugi Kamande, Department of Environmental Science, School of Environmental Studies

Department of Environmental Science, School of Environmental Studies, Kenyatta
University, Kenya

Dr. Rachel, . N Kabuyah, Kenyatta University

Department of Environmental Science, School of Environmental Studies, Kenyatta University, Kenya

Dr. Ezekiel Ndunda, Kenyatta University,

Department of Environmental Science, School of Environmental Studies, Kenyatta University, Kenya

Published
2017-08-31
How to Cite
Kamande, P. N., Kabuyah, D. R. . N., & Ndunda, D. E. (2017). HEAVY METAL ACCUMULATION IN THE EDIBLE LEAFY PARTS OF AFRICAN NIGHTSHADE (Solanum Scabrum Mill) IRRIGATED WITH VARYING WATER QUALITY. IJRDO-Journal of Agriculture and Research (ISSN: 2455-7668), 3(8), 01-15. https://doi.org/10.53555/ar.v3i8.101
Issue
Vol. 3 No. 8 (2017): IJRDO-Journal of Agriculture And Research
Section
Articles

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