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 […]

Microbiological and physicochemical analyses of top soils obtained from four municipal waste dumpsites in Benin City, Nigeria

Several methodologies were utilized to evaluate the microbiological and physico chemical properties of top soil samples bored from four municipal waste dumpsites and a farmland (control sample) all located in Benin City, Edo State. The soil samples were obtained during the month of January, 2013. The mean aerobic bacterial counts for the soil samples ranged […]

Some heavy metals content of seeds of beans intercropped with yams cultivated under usage of agrochemicals

The increasing usage of agrochemicals in crop cultivations has resulted in the accumulation of excess nutrient elements in the rooting and deeper soil zones. This study employed standard laboratory procedures to determine the levels of some heavy metals in seeds of beans (Phaseous vulgaris) intercropped with yams (Dioscorea rotundata) cultivated under uncontrolled applications of chemical […]

Seasonal variation in bioavailability of some toxic metals in waste dump soils of Makurdi, North-Central Nigeria

Seasonal changes in the bioavailable forms of cadmium (Cd), copper (Cu) and lead (Pb) in waste dump soils of a rapidly expanding city were assessed by sequential chemical extractions. Three major waste dumps at Apir Mechanic Village (AMV), Benue Industrial Layout (BIL) and Integrated Waste Dump (IWD) all located in Makurdi, north-central Nigeria, were selected […]

Impact of heavy metals and Hsp Response

Heavy metals are natural constituents of the earth’s crust, but indiscriminate human activities have drastically altered their geochemical cycles and biochemical balance. Heavy metals such as Iron, copper, Zinc, Nickel, Molybdenum are essential for normal biological functioning. Heavy metals such as Mercury, Lead, and Cadmium are biologically non-essential, but are important metals for industrial applications. […]

Microbiological and toxicological qualities of the water of watering used in urban agriculture at Cotonou (Republic of Benin)

This study has evaluated microbiological and toxicological qualities of water of watering in Cotonou. A pilot site at Glo-Djigbé, the market-gardening sites of Houeyiho, Fidjrosse and Agongbomey were included in the work. The salmonellas, Escherichia coli and cadmium were required in water of watering. On the whole, eight water samples of water were analyzed. Water […]

Physicochemical properties and heavy metal content of selected water sources in Ishiagu, Ebonyi State- Nigeria

The physicochemical properties and heavy metal content of selected water sources within two kilometers from a quarry site in Ishiagu was investigated using standard methods. Biochemical oxygen demand, chemical oxygen demand, total dissolved solids and nitrate were above the World Health Organization (WHO) permissible limits for drinking water at the quarry site and one kilometer […]

Evaluation of underground waters quality for various purposes with special reference to drinking and irrigation parameters

The present study comprised suitability evaluation of underground waters for drinking and irrigational uses. A total of sixteen underground waters samples were collected from the upper Ghaggar river basin starting from Badisher-Koti (Panchkula) to Ratanheri (Patiala) along the Ghaggar river course. The collected water samples were subjected to the physico-chemical and heavy metals characterizations. Physico-chemical […]

Effect of anthropogenic activities on an ecologically important wetland in Ghana

The objective of this research was to assess the level of pollution in the Sakumo wetland with emphasis on heavy metals contamination and their distribution in the wetland, which is being polluted from industrial, domestic and sewage effluents. Samples of water, sediment and fish were collected and analyzed for the concentration of heavy metals (arsenic, […]

Bioavailability of potentially toxic elements (PTES) in soil from a former industrial site using EDTA/acetic acid

Pseudo total Potentially Toxic Elements concentration is a useful guide in evaluating the pollution level in the environment. Samples of soils from a former industrial site have been analysed for potentially toxic elements (Arsenic, Cadmium, Chromium, Copper, Nickel, Lead and Zinc) using EDTA and HOAc. The accuracy of the microwave digestion and ICP-MS analysis was […]