TITLE:
Assessment of Heavy Metals Pollution in Soils and Vegetation around Selected Industries in Lagos State, Nigeria
AUTHORS:
Adeola Alex Adesuyi, Kelechi Longinus Njoku, Modupe Olatunde Akinola
KEYWORDS:
Heavy Metals, Bioaccumulation, Industries, Phytoremediation
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.3 No.7,
September
7,
2015
ABSTRACT: In this study, eleven soil samples and
twenty-twoplants samples were collected in the vicinity of eleven industries
and a thermal station was analyzed for zinc, copper, iron, lead and cadmium.
Soil sample from Egbin thermal station had the highest concentration of Zn (141.06
mg/kg) and Cu (131.70 mg/kg). Soil from international textile had the highest
level of Fe and the soil from Ni-chemtex had the highest concentration Pb and
Cd was the highest in soil from Guinness (28.91 mg/kg, 59.80 mg/kg and 1.72
mg/kg respectively). The highest concentrations of the heavy metals were
observed from different plants species. Analyses of variance (p 0.5). There were positive correlations between the heavy
metals in the soils and the plant samples indicated that the plants obtained
the heavy metals from the soil. Plants having BCF values less than one had
limited ability to accumulate, translocate and phytoextract heavy metals. These
plants in this study with higher Bioconcentration Factor value especially those
greater than one (Croton lobatus, Borreria sp., Cy-athula prostrata, Lantana
camara, Ficus sp., Mimosa pudica, Eclipta prostrata, Commelina sp. etc.) were
suggested for further research and assessment on their bioaccumulation
abilities and phy-toremediation potential.