ASSESSMENT OF SOME HEAVY METALS IN WATER AND SOME FOOD CROPS CULTIVATED ALONG RIVER KUBANNI AND GALMA, IN ZARIA, NIGERIA

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dc.contributor.authorONALO, Deborah Victoria
dc.date.accessioned2021-08-02T07:44:24Z
dc.date.available2021-08-02T07:44:24Z
dc.date.issued2011-01
dc.descriptionA THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL AHMADU BELLO UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTERS OF SCIENCE (PHARMACEUTILCAL CHEMISTRY) DEPARTMENT OF LIFE SCIENCE, FACULTY OF MEDICINE , AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractHeavy metal contamination of food crops through irrigation is a major concern due to the potential risk involved. This study was designed to investigate the contamination of food crops grown through irrigation along River Kubanni and Galma, Zaria, with heavy metals (Pb, Cu, Mn, Cd, Cr and Fe). To achieve this, Pb, Cu, Mn, Cd, Cr and Fe concentrations in water and food crops and the transfer factor of these metals from water to food crops were determined. Samples of food crops (maize, spinach, lettuce and bitter leaf) and corresponding irrigating water were collected, water sample from Zaria water works was also collected as a control and metals assessed using Atomic Absorption Spectrophotometer. The results showed the presence Cu, Cr, Pb, Cd and Fe in all the food crops although significantly higher in lettuce compared to other food crops beyond the limits of International standard FAO/WHO. Water samples revealed low concentration of Cu and Mn, with values below the International permissible limits for water quality, WHO with exception of Pb, Cr, Fe and Cd (at some sites). Metal transfer factors from water to food crops are found significant in leafy vegetable (lettuce, spinach and bitter leaf) than maize. From this result, it was also observed that other than contamination of food crops by irrigation water, other sources of metal deposit could be responsible. Generally, heavy metal contamination of food crops grown along River Kubanni and Galma, Zaria posed a great health risk to the local population through consumption of the food crops especially lettuceen_US
dc.identifier.urihttp://hdl.handle.net/123456789/12479
dc.language.isoenen_US
dc.subjectASSESSMENT,en_US
dc.subjectHEAVY METALS,en_US
dc.subjectWATER,en_US
dc.subjectFOOD CROPS CULTIVATED,en_US
dc.subjectRIVER KUBANNI,en_US
dc.subjectGALMA,en_US
dc.subjectZARIA,en_US
dc.subjectNIGERIA.en_US
dc.titleASSESSMENT OF SOME HEAVY METALS IN WATER AND SOME FOOD CROPS CULTIVATED ALONG RIVER KUBANNI AND GALMA, IN ZARIA, NIGERIAen_US
dc.typeThesisen_US
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