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Foliage accumulation of petroleum-based pollutants by <i>Tallinium triangulare</i> grown on post-remediated soil and its toxicological potentials on Wistar rats


R.C. Ohiri
E.N. Onyeike
A.A. Uwakwe

Abstract

A study of the toxicity of foliage accumulated petroleum-based pollutants by Tallinium triangulare grown on crude oil polluted and remediated agricultural soil was carried out using wistar rats. Three lots (A, B, C) of 4 m2 farmland with 2 m spaces between them had lots B and C polluted and bioremediated for 16 weeks. Viable seedlings of T. triangulare were planted on each lot and analyses of their leaves after 28 days of growth showed highest concentrations of 9.05+0.06 mg/kg and 0.07+0.01 g/100g for C30 and Lead for T. triangulare from naturally attenuated soil while 8.44+0.19 mg/kg of Acenaphthene was observed for those grown on bioaugmented soil. Animals fed with formulated pellets of 50% dry weight of T. triangulare from the three lots for 28 days. Assay of animal serum showed elevated toxicological markers, slightly increased amylase activity and decreased Packed Cell Volume and haemoglobin concentration.

Keywords: Absorption, bioaccumulation, biotransformation, crude oil, ingestion, excretion


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eISSN: 1118-1931
print ISSN: 1118-1931