search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 10, No. 2, 2005, pp. 99-104
Bioline Code: ja06032
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 10, No. 2, 2005, pp. 99-104

 en Lead Contamination and Microbial Lead Tolerance in Soils at Major Road Junctions in Benin City
ATUANYA, EI, OSEGHE, EO

Abstract

Lead pollution and lead tolerance levels of microbes in soil at major road junctions in Benin City were investigated. Results revealed that distance from the road junctions affected the concentrations of lead in soil, as well as the microbial population density and types of microbes present in the soil. The highest concentrations of lead were recorded with soil samples obtained at 0 and 10m distance closer to road junctions, while the lowest concentrations were recorded with soil samples obtained at 30m distance away from road junctions. The highest concentrations recorded for lead, copper and iron were 32 x 101 mgkg-1, 8 x 10-1 mgkg-1 6.3 x 10-1 respectively. All these levels decreased rapidly as the distance from the road increased. Bacterial counts increased as the distance from the road junctions increased. While fungal counts decreased as distance from road junctions increased. Lead tolerance range of bacterial and fungal isolates was between 10 to 1000 mg 1-1. Non-significant, negative correlation was found between lead concentration and microbal counts. The bacteria and fungi most frequently isolated at 0 and 10m distance were Pseudomonas sp check for this species in other resources ., Micrococcus sp. check for this species in other resources , Bacillus sp. check for this species in other resources , Candida utilis check for this species in other resources , Penicillium sp check for this species in other resources and the yeast Saccharromyces cerevisiae check for this species in other resources . @JASEM

 
© Copyright 2006 - Journal of Applied Sciences & Environmental Management

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2017, Site last up-dated on 16-Oct-2017.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil