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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 21, No. 1, 2017, pp. 112-117
Bioline Code: ja17012
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 21, No. 1, 2017, pp. 112-117

 en Evaluation of Physicochemical, Microbiological and Polycyclic Aromatic Hydrocarbon Content of Top Soils from Oka Market Waste Collection Site, Benin City, Nigeria
IMARHIAGBE, E.E.; OSARENOTOR, O.; OBAYAGBONA, O.N.; EGHOMWANRE, A.F. & NZEADIBE, B.N.

Abstract

The aim of this study was to evaluate the physicochemical, microbiological and polycyclic aromatic hydrocarbon composition of top soil samples from Oka market waste collection site. Standard analytical and microbiological procedures were adopted. pH and electrical conductivity ranged from 6.45 to 7.39 and 230 to 940 μS/cm respectively. The highest content of organic carbon was observed in sample 2 (5.91 %), while that of sodium and potassium were 2.44 meq/ 100g (soil 2) and 0.23 meq/ 100g (soil 3) respectively. Calcium and magnesium content in the soil ranged from 2.60 to 7.72 meq/ 100g and 0.69 to 1.38 meq/ 100g respectively. The total hydrocarbon content ranged from 2.4 to 15.9mg/kg. The results of particle soil analysis revealed high content of sandy soil (88.2 to 90.7). Iron had the highest concentration among studied heavy metals, ranging from 193 to 649.2 mg/kg. Total heterotrophic bacterial and fungal counts were in the magnitude of 104, ranging from 3.6 to 17.4 cfu/g and 2.3 to 6.9 cfu/g. Tentative bacterial isolates were Bacillus check for this species in other resources sp., Micrococcus check for this species in other resources sp., Staphylococcus check for this species in other resources spp. and Enterobacter check for this species in other resources sp., while fungal isolates were Aspergillus check for this species in other resources sp. Candida check for this species in other resources sp. and Penicillium check for this species in other resources spp. The highest concentration of Polycyclic Aromatic Hydrocarbon was 16.5 mg/kg, with its components ranging from 0.08 mg/kg (Dibenzo(a,h) anthracene) to 2.1 mg/kg (Benzo(k) fluoranthene). The quality of soil is as a result of all the processes that act on it, therefore, informing the public of the dangers inherent in improper management of soil environment should be considered as an important aspect of scientific research.

Keywords
market; physicochemical; microbial; PAHs; waste; heavy metals

 
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