Impact of crude oil pollution on the physicochemical and microbiological properties of orashi river wetland in Egbema, Nigeria

The study investigated impact of crude oil pollution on the physicochemical and microbiological parameters of crude oil polluted Orashi River wetland. The physicochemical, microbiological parameters and trend of enzymatic activities in crude oil polluted and unpolluted wetlands were evaluated. Bioloads had their highest values in the lightly polluted wetlands with values of rainy season leading, […]

Heavy metal bioaccumulation of selected tuber crops from Ishiagu, Ebonyi State, South East, Nigeria

Heavy metal concentration of soil and selected root crops cassava, yam, cocoyam and potato from three mining areas of Ishiagu, Ebonyi State were Evaluated. Heavy metals were analysed using Atomic absorption spectrophotometer (AAS). Results showed that lead (Pb) concentration of soil samples raged from 1.12±0.01a – 2.05±0.01c, Cadmium 0.46±0.02a – 0.77±0.01b, Chromuim 0.97±0.03d – 1.23± […]

The prevalence of extended spectrum beta-lactamases (ESBLs) among Escherichia coli and Klebsiella species urinary isolates from Abia state university teaching hospital (ABSUTH) aba, Abia State Nigeria

The prevalence of extended spectrum β-lactamases among 246 clinical isolates from Abia State University teaching Hospital patients was investigated. The isolates were made up of 134 Escherichia coli and 112 Klebsiella species. Antimicrobial susceptibility of the isolates was determined by the disc diffusion method. ESBL phenotypes were determined by the double disc synergy method using […]

Groundwater quality assessment in a major livestock feedlot/abattoir (imowo-eleran) in Ijebu-ode, Ogun state, Southwestern Nigeria

This study assessed the quality of groundwater in Imowo-eleran, a major livestock feedlot/abattoir in Ijebu-Ode, Ogun state, southwestern Nigeria. A total of twelve (12) boreholes, grouped into A, B and C in relation to proximity to the feedlot were assessed using physico-chemical and bacteriological parameters. On-site observation and organoleptic properties of appearance, colour, odour and […]

Quantification of heavy metal levels in imported rice (Oryza sativa) consumed in the Northern Parts of Nigeria

Dietary exposure to heavy metals, namely Cadmium (Cd), Lead (Pb), Chromium (Cr), Mercury (Hg), Arsenic(As), has been identified as a risk to human health through the consumption of some major food substances. This study was designed to investigate five (5) heavy metals (As, Cd, Cr, Hg, Pb) in ten (10) imported rice (Oryza sativa) samples […]

The impact of gas flaring and venting in Nigeria and management options: a case study of oil producing areas

This study assesses gas flaring and venting impacts in some oil producing areas in the Niger-Delta of Nigeria. The research instrument adopted for this study was the questionnaire survey and laboratory analysis, both microbiological and physico-chemical. The analysis of the data was done using simple descriptive analysis of frequency distribution of the relevant statistical information, […]

Leaf epidermal analysis of some plants in the Ishiagu lead–zinc mining area of South Eastern Nigeria

The study examined the leaf epidermis of some plants growing in a lead-zinc mining area of Ishiagu, Nigeria with the aim of evaluating possible impacts of heavy metal stress on leaf structure. Seven dominant plant species, Adiantum caudatum, Alchornea cordifolia, Centrosema pubescens, Clotalaria retusa, Millettia aboensis, Urena lobata and Vitex doniana were selected for the […]

Heavy metal concentration and physicochemical properties of soil in the lead-zinc mining area of Ishiagu, Nigeria

The study assessed heavy metal (lead, zinc, cobalt, chromium and cadmium) and physicochemical properties (pH, cation exchange capacity, electrical conductivity, organic carbon and clay content) of soil samples in Ishiagu lead- zinc mining area. Soil samples were collected at depths of 0-15cm, 16-30cm and 31-45cm from abandoned pit, active pit, artificial lake and tailing in […]

Effect of nitrogen and phosphorus fertilizers on nodulation of some selected grain legumes at Bauchi, Northern Guinea Savanna of Nigeria

Nodules were collected at bi weekly intervals from legumes grown in three rainy seasons in Northern Guinea Savanna of Nigeria. The legumes include cowpea (Vigna unguiculata (L.) Walp), groundnut (Arachis hypogea (L.)) and soybean (Glycine max (L.)) treated with nitrogen fertilizer at 0 and 20kgN/ha and phosphorus fertilizer at 0, 13.2, 26.4 and 39.6kgP/ha. The […]

Common striga control methods in Nigeria: A review

Striga is a parasitic weed commonly found in both cereals and legumes, reducing yield between 80-100%. Different control measures emerging from various agricultural Researchers at national and international levels are been recommended in tackling the negative effects of this weed. A review of these findings has been discussed for the benefit of our poor-resource farmers […]