Abstract This study examined the quality of hand-dug wells in Sabon-Gari area of Zaria, Nigeria. Three sets of sampled hand dug-wells were used for the study. They are small, medium and large wells classified based on their diameter. Water samples were collected from twenty-seven (27) different wells at strategic locations in the city to ascertain […]
SINGLE AND JOINT ACTION TOXICITY EVALUATION OF INSECTICIDE AND LAUNDRY DETERGENT AGAINST Poecilia reticulata
Abstract In laboratory bioassays, single action toxicities of an insecticide (Apicide [A]) and two laundry detergents (Persil [P] and Klin [K]) as well as their joint action toxicity studies in binary (1:1; 1:4) and triple (1:1:1) mixtures were evaluated against Poecilia reticulata (Guppy). Joint action toxicity mortality data was analyzed using Synergistic Ratio (SR), Concentration […]
ASSESSMENT OF GROUNDWATER QUALITY AROUND A PETROLEUM TANK FARM, IN IFIE COMMUNITY AND ENVIRONS, WARRI, SOUTHERN NIGERIA
Abstract Investigation of the physical and chemical properties of groundwater around a Petroleum Tank Farm was carried out between January and August, 2015 to assess the suitability of the borehole water for drinking and other domestic uses. The results show that pH of water was acidic with values ranging from 4.62 to 6.87, EC (33.00–206.00 […]
ASSESSMENT OF HUMAN HEALTH HAZARD DUE TO METAL UPTAKE VIA FISH CONSUMPTION FROM COASTAL AREA OF TANZANIA
Abstract Heavy metals are serious threat because of their toxicity, long persistence, bioaccumulation and biomagnification in the food chain. This research deals with human health risk assessment of metal contamination through the consumption of commonly consumed fish from Dar es Salaam City. The fish species of interest were Rastrellieger kanagurta, Lutjanus fulvus and Fenneropenaeus indicus. […]
RESIDENTS’ PERCEPTION ON THE IMPACT OF GATEKEEPERS ON ACCESS TO HOUSING RESOURCES AND HOME OWNERSHIP IN LAGOS STATE, NIGERIA
Abstract In a capitalist housing market, provision and allocation of housing resources and units are in the hands of the gatekeepers, whose activities limit access to housing resources and units. This study examined residents’ perception on how the activities of gatekeepers constrain access to housing resources and units in the peri-urban interface of metropolitan Lagos, […]
MICROBIAL LOAD OF TWO PALAEMONID PRAWNS AND THE WATER SAMPLE FROM OVIA RIVER, NIGER DELTA, NIGERIA
Abstract A comparative study of the Microbial load of two palaemonid prawns and water samples of Ovia river, Edo state were analysed using standard methods. Total viable microbial count ranged between 1.62 x 105 and 5.58 x 105cfu/g in all samples. The highest mean bacteria count 3.27x 105cfu/g was found in the gills of M. […]
AIR POLLUTION TOLERANCE INDICES (APTI) OF SOME SELECTED PLANTS GROWING CLOSE TO IRON AND STEEL INDUSTRY IN ILE- IFE, OSUN STATE NIGERIA
Abstract The air pollution tolerance indices (APTI) of five plants species randomly sampled from the vicinity of Iron and Steel factory in Ile-Ife Osun State, Nigeria were analyzed. A composite sample of five leaves for each of the plant was used for laboratory analysis. Four physiological and biochemical parameters: leaf relative water content (RWC), ascorbic […]
GROWTH AND YIELD RESPONSES OF OKRA (Abelmoschus esculentus) IN A PETROLEUM HYDROCARBON-POLLUTED SOIL AFTER SUBSTRATE AMENDMENT
Abstract The present study investigated the effects of hydrocarbon pollution on the growth and yield performances of okra after substrate amendment. Uniform weights (10 kg) of top soil were measured into buckets and thoroughly mixed with waste engine oil (WEO) to obtain uniform concentrations of 5 % w/w. Oil-polluted soils were amended with 100 g […]
POPULATION STATUS AND ENCOUNTER RATES OF WEST AFRICAN MANATEE (Trichechus senegalensis) IN PANDAM WILDLIFE PARK, PLATEAU STATE, NIGERIA
Abstract Effective conservation measures for West African manatee in Nigeria have been very slow in progression. This study provides information on the conservation status of West African manatee through the determination of the abundance, seasonal movement and encounter rate of manatee in Pandam Lake. The visual non-motorized boat point scan survey was adopted for this […]
MORPHO-TECTONIC ANALYSIS OF TEKEZE WATERSHED IN ETHIOPIA USING GEOINFORMATICS
Abstract This study examines the morpho-tectonic settings of the drainage system in the northwestern Ethiopian plateau by focusing on the Tekeze River. The plateau is underlain by Precambrian crystalline rocks, overlain by EOCENE and Late Oligocene basalts. An attempt is made to study the underlying geology of Tekeze river basin and its significance in morphometry […]