Trace metal contents of selected seeds and vegetables from oil producing areas of Nigeria

Chemistry & Biodiversity
Matthew O Wegwu, Stephen I Omeodu

Abstract

The concentrations of accumulated trace metals in selected seeds and vegetables collected in the oil producing Rivers State of Nigeria were investigated. The values were compared with those of seeds and vegetables cultivated in Owerri, a less industrialized area in Nigeria. The lead (Pb) and cadmium (Cd) contents of the seeds obtained from Rivers State ranged between 0.10 and 0.23 microg/g dry weight, while those of the seeds cultivated in Owerri fell below the detection limit of 0.01 microg/g dry weight. The highest manganese (Mn) level (902 microg/g dry weight) was found in Irvingia garbonesis seeds cultivated in Rivers State. Similarly, the highest nickel (Ni) value (199 microg/g dry weight) was also obtained in I. garbonesis, however, in the seeds sampled in Owerri. The highest copper (Cu), zinc (Zn), and iron (Fe) levels (16.8, 5.27, and 26.2 microg/g dry weight, resp.) were detected in seeds collected in Rivers State. With the exception of Talinum triangulae, Ocinum gratissimum, and Piper guineese, with Pb levels of 0.09, 0.10, and 0.11 microg/g dry weight, respectively, the Pb and Cd levels in the vegetables grown in Owerri fell below the detection limit of 0.01 microg/g dry weight. The trace metal with the highest level...Continue Reading

References

Apr 1, 1977·The Analyst·N T Crosby
Mar 7, 2002·Environmental Monitoring and Assessment·Eugene N OnyeikeNwibani M Nwinuka
Dec 29, 2006·Chemistry & Biodiversity·Matthew O Wegwu, Joyce O Akaninwor
Dec 29, 2006·Chemistry & Biodiversity·Matthew O Wegwu, Ihundah A Wigwe
Nov 1, 1991·World Journal of Microbiology & Biotechnology·A O EjioforJ Nwankwo

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