Browsing by Author "Abubakar, Aisha Kana"

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    Health Risk Assessment of Heavy Metals in Swampy Agricultural Soils in Nasarawa West, Nigeria
    (Department of Physics, Nasarawa State University Keffi, 2018-12-01) Ibrahim, Umar; Abubakar, Aisha Kana; Abdullahi, Abbas Auta; Mustapha, Mohammed Idris; Abdullahi, Mundi Abubakar
    In this study, the health risk caused by heavy metals in swampy agricultural soil of Nasarawa west was assessed. A total of 50 soil samples from five local government of Nasarawa west (10 from each) were collected and analyzed for Asernic (As), Lead (Pb), Cadmium (Cd), Nikel (Ni) and Zinc (Zn) present in the samples using XRF Spectrometry at Center for Energy Research and Development (CERD) in Obafemi Awolowo University, Ile lfe. Osun State, Nigeria. Measured concentrations of these heavy metals were then used to calculate the health risk for adults and children. The result show that the concentrations are in the order of Ni> Cd> Zn>Pb>As which are all below the permissible level except for As which appear to be higher than the permissible levels. The Hazard Index (HI) of all the pathways for adults and children were found to be 1.55 and 12.19 respectively. These values are greater than 1 which is the tolerance level for both adults and children. These makes non- carcinogenic effects significant to the adult’s population and pose serious non- carcinogenic effect on children in those areas. The carcinogenic risk values were found to be both higher than acceptable values. This implies that there is a probability that 1 adult in about 10,000 may be affected.
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    Hospital Water Demand/Consumption: A Case Study of Ahmadu Bello University Teaching Hospital, Shika.
    (Department of Geology and Minning, Nasarawa State University Keffi, 2019-11-03) Baba, Adama Oleka; Krzysztof, Schoeneich; Abubakar, Aisha Kana
    This work provki/r^sis of understanding groundwater potential of the Ahmadu Beljp .‘,|:r»iversity - ^ j ting Hospital, Shika, the water demand and requirement for \ The resistivity values obtain shows the water bearing zones ranges fmone point 4v ree other. The water potential of the area is good though, the ,e varies uom point to point depending on the conductivity, thickness, and ■Ti-TTer characteristics. Shika hospital is located on Metamorphic (Gneiss) with maximum thickness of water bearing soft rock of 30 m. The two interconnected aquifers, the Soft Overburden and the Fractured Crystalline Aquifers stores good quantity of water. The groundwater flow directions of this area which stores water is that the water flow away to recharge the surface water. Solution to water problem in the study area is to rely on surface water via overhead tanks and the use of groundwater for emergency situation. Water demand of the Hospital is 154 m3/d. Total water demand of the hospital is 438.39(m3/d) and Unit water per day per bed is 0.877(m3/d). The Hospital Static Groundwater Resources 494,350m3, Total Dynamic Groundwater Resources 58,518.1m3/a and Utilizable Dynamic Groundwater Resources 29,259.05m3/a or (80.16 m3/d). The water demand /requirement using WHO (2005) standard is 77,000 Ipcd (77m3/d). The unit water demand per bed per day of Shika hospital is 0.877 m3/d. The coefficient of surface runoff of the study area is 0.18, base flow (infiltration) 0.1, and total runoff 0.28. The annual volume of surface runoff for ABU Teaching Hospital Shika is 1,039,209 m3/a. Total surface water resources of the study area is 1,918,636 m3/a. Proper planning is fundamental to protection, conservation and constant water supply. ABUTH water supply has been from boreholes, Zaria and Ahmadu Bello University (ABU) water works. Therefore, with proper management, ABUTH should not experience water scarcity. All the storage tanks both ground and overhead should be reactivated and sluice valves replaced and/or serviced with good chamber for proper security to minimize usage, wastage and delivery of water to different department of the hospital through its water distribution network pipeline while its groundwater resources should be a supplementary water sources because a hospital should have constant water supply and ABUTH should not be an exception.
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    Hydrological Aspects of Artificial Lake Design: A Case Study of the Proposed Kurikyo Lake, Lafia Nasarawa State
    (Department of Geology and Minning, Nasarawa State University Keffi, 2019-05-06) Abubakar, Aisha Kana; Abubakar, Kana Ahmad; Baba, Adama Oleka
    Artificially created lakes involve one form of impoundment or another. A lake is simply a body of water surrounded by land. It can be natural e.g. Lake Chad or artificially created by man in order to beautify his environment, for irrigation and domestic water supply. Factors generally considered before the creation of artificial lakes include physical and economic/social factors. Physical factors include geomorphology, hydrology and climate. While socio economic factors include developmental plans, land ownership, availability of technology/equipment, impact on socio – economic activities of individuals in the area among others. The present study looks at the hydrological aspect for the development of an artificial lake in Lafia. The area of interest is River Kurikyo catchment area; the river has its mouth situated along Shendam road in Lafia town, close to the House of Assembly Complex. The river flows in a northwestern direction and has numerous small streams contributing to its flow.
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    Preliminary geological evidence for multiple tremors in Kwoi, Central Nigeria
    (Department of Geology and Minning, Nasarawa State University Keffi, 2020-01-09) Goki, Nathaniel; Onwuka, Solomon Anayo; Baba, Adama Oleka; Iyakwari, Shekwoyandu; Tanko, Ishak Yau; Abubakar, Aisha Kana; Umbugadu, A.A.; Usman, Halima Osu
    Preliminary field assessment of the geological evidence for the September 2016 multiple tremors was felt as far as 10 km in Nok and Chori villages in the north and northwest of Kwoi respectively. This involved systematic studies of the crack pattern and intensity on buildings, rocks and hanging walls of slopes around the area with the highest shock. The structural mapping was complemented by composite images of SPOT 5, supplementary subsurface investigations utilized aeromagnetic data, seismic data, and Digital Terrain Model (DTM) for the area. Results show that the major evidence that proved a possible link to the area of highest impact is the tremor triggered displacement of a 4 by 3 m diameter rock boulder situated about a kilometre from the Kwoi town, some 3 km from the nearest epicentre that fell through a cumulative distance of 25 m, splitting the fresh granite boulder into two and creating a high impact scar on its path. Seismic vibrations that shook the residents of Kwoi and environs (with epicentres located along a NE-SW linear traverse and remotely coinciding with buried fractures) appear to have been generated and propagated laterally from the rocks along a northwest-southeast profile. Despite the non- homogenous strengths of the impacted buildings, the near-consistency of the E-W striking walls being the most fractured gives a remote connection with the major 345° to 015° fracture patterns on the granitic plutons that shields Kwoi town to the north. Additionally, the intensity of the fractures and collapse in the buildings increased south-westwards from the perceived area of highest impact. A possible tectonic origin related to stress build up in the rocks of the area for the tremors can be insinuated thereby foreclosing the theory of a non-tectonic origin being considered in some quarters including the recent Mpape Abuja tremor of 2018. All these epicentres plot along an extrapolated trend that coincides with the Chain Fracture Zone of the North Atlantic.
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    The risk o f groundw ater contam ination from land-use activities in shallow basem ent terrains, a case o f K effi and environs, N orth Central Nigeria.
    (Department of Geology and Minning, Nasarawa State University Keffi, 2017-03-13) Obrike, Stephen E.; Anuda, G.K.; Iyakwari, Shekwoyandu; Abubakar, Aisha Kana; Umbugadu, A.