Welcome to University of Abuja institutional repository for research material including: journal articles, conference papers, practice research, video, audio, art works and exhibitions, books and book chapters, doctoral theses and datasets. The repository provides full text access where permitted, and full citation details where restrictions apply. Please contact the Research Support Team (repository@uniabuja.edu.ng) with any related queries.

Recent Submissions

  • Thumbnail Image
    Item type:Item,
    LIMNOLOGICAL CHARACTERISTICS OF KURUDU AND KARSHI RESERVOIRS, IN FEDERAL CAPITAL TERRITORYABUJA, NIGERIA
    (2023) IBHADON, Sadia
    Limnological characteristics of Kurudu and Karshi reservoirs in Federal Capital Territory, Abuja, Nigeria was conducted from January 2018 to December 2019. The aim of this study was to assess physicochemical parameters, phytoplankton and zooplankton communities of the reservoirs. Water Samples were collected from three sampling stations and analyzed using standard methods, procedures and instruments. The results of physico-chemical parameters in Kurudu reservoir had a mean value of ; temperature (25.1±1.8ºC), pH (6.9±0.3), transparency (0.9±0.2m), turbidity (26.0±13.4), Electrical Conductivity (EC) (166.0±17.2µS/cm), Dissolved Oxygen (DO) (6.0±0.2mg/l), Biochemical Oxygen Demand (BOD) (3.2±0.3 mg/l), Nitrate-Nitrogen (NO3-,) (6.1±0.4mg/l), Phosphate (PO4-) (0.2±0.0 mg/l), Iron (Fe2+) (0.1±0.0 mg/l) and Lead (Pb2+) (0.0bdl). In Karshi reservoir, the mean values were; temperature (26.0±1.9ºC), pH (7.1±0.3), transparency (1.2±0.4m), turbidity (40.1±15.5NTU), EC (105.4±31.9µS/cm), DO (6.2±0.4mg/l), BOD (5.7±0.6mg/l), NO3- (6.7±0.9mg/l), PO4- (0.1±0.0 mg/l), Fe2+(0.1±0.0mg/l) and Pb2+(0.0bdl). Mean values of physicochemical parameters were within the recommended WHO limits except for turbidity and nitrate that were above WHO limits in Kurudu and Karshi reservoirs. Phosphate was also above WHO limit in Kurudu reservoir. Phytoplankton assemblage in in Kurudu and Karshi reservoirs comprised of six phytoplankton phyla belonging to 7 classes, 23 families and 42 species. In Kurudu reservoir, Zygnemataphyceae class was the most abundant (2737 Org/l) while Chrysophyceae was the least abundant (171 Org/l) whereas Chlorophyceae (1791 Org/l) was the most abundant and Chrysophyceae was the least abundant (24 Org/l) in Karshi reservoir. Four Zooplankton groups comprising of 19 species were identified during the study; Rotifera was the most abundant ((2149 Org/l) while Copepoda (1170 Org/l) was the least abundant in Kurudu reservoir while in Karshi reservoir Rotifera was the most abundant (1100 Org/l) and Ostracods (428 Org/l) was the least abundant. Calculated diversity indices indicated a diverse and hetereogenous assemblage of plankton. Analysis of Variance (ANOVA) indicated that physico-chemical parameters in both reservoirs were strongly influenced by seasonal variation while Phytoplankton and Zooplankton abundance in both reservoirs was strongly influenced by stations and monthly variation as shown in the p-value of ANOVA. Pearson correlation analysis showed a significant relationship between plankton and water quality parameter. This study has shown that the reservoirs fall within “good/average” water quality, with class II level of pollution which is indicative of moderate pollution especially during the rainy season. Transparency, turbidity, EC, BOD, Iron concentration, DO and BOD are the major abiotic factors influencing the reservoirs. Comparative study of reservoir revealed that limnological data varied differently to reflect reservoir morphology, size, inflows, varying anthropogenic activities, seasons etc. Effective monitoring of reservoir and regulation of activities in and around the reservoir are recommended if Sustainable Development Goals (SDG)are to be achieved and for sustainable use of the reservoir.
  • Thumbnail Image
    Item type:Item,
    ASSESSMENT OF INDOOR AIR QUALITY IN RESIDENTIAL BUILDINGS IN GWAGWALADA TOWN, FEDERAL CAPITAL TERRITORY, ABUJA, NIGERIA.
    (2023) DAVID, Esther
    This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area. This study assessed indoor air quality in residential building in Gwagwalada town, Federal Capital Territory, Abuja, Nigeria. Data was sourced from primary and secondary sources; primary data was collected through air quality reading and administration of questionnaire while secondary sources was from published and unpublished materials such as journals, textbooks, research projects, among others. Simple stratified systematic sampling was used in selecting the sampling locations. planned (Phase I and Phase III/Kontagora estate), unplanned (Agwan Dodo, Dagiri, Agwan Bassa). A sample size of three hundred and eighty-four (384) respondents were interviewed from the study area. The result shows values of the concentration of PM2.5 (mg3) and CO (ppm) is lowest in the morning in Phase 1 with 0.08±0.01mg3 and 1.3±0.5ppm respectively and highest value of PM2.5 in Dagiri and Angwan-dodo with 0.12±0.027mg3 and CO in Agwan-dodo with 2.5±0.67ppm. lowest value of SO2 of 0.003±0.004ppm was obtained in Agwan-Bassa while the highest value of 0.012±0.004ppm was obtained in Agwan-dodo. More also, lowest morning value for ammonia of 0.0042±0.004ppm was obtained in Phase 1 while highest value was obtained in Dagiri with 0.01±0.007ppm followed by Agwan-dodo with 0.009±0.003ppm. Housing of the study area has no record of methane and hydrosulphide. The value obtained in the morning for particulate matter and sulphur dioxide, is less than Federal ministry of environment standard of 0.25mg3 andn0.01ppm while value obtained in the evening is higher than the set standard. Mean values of other parameters (carbon monoxide, nitro dioxide, methane, oxide, hydrosulphide and ammonia) recorded for morning and evening were below Federal Ministry of Environment standard. The result shows that 56.06% of sample residents has no open space within their compound while 43.56% had open space within their compound. The findings also revealed that 29.55% of the population house is 1meter distance from the next house and 74.62% had one toilet in the home. The finding shows that the factors responsible for the nature of air quality in Gwagwalada are; human activities (light industries, combustion of gas from automobiles, poor housing facilities and structures among others. Therefore, there should be a Periodic assessment of the air quality indoor so as to monitor the air quality in the study area.
  • Thumbnail Image
    Item type:Item,
    EFFECTS OF SUBJECT-VERB CONCORD INSTRUCTION ON UPPER BASIC THREE STUDENTS’ ACADEMIC ACHIEVMENT IN ENGLISH LANGUAGE IN GWAGWALADA AREA COUNCIL, ABUJA, NIGERIA.EFFECTS OF SUBJECT-VERB CONCORD INSTRUCTION ON UPPER BASIC THREE STUDENTS’ ACADEMIC ACHIEVMENT IN ENGLISH LANGUAGE IN GWAGWALADA AREA COUNCIL, ABUJA, NIGERIA.
    (2023) NWAFOR, Agatha Nwadimma
    This research work investigated the effects of subject-verb concord instruction on Upper Basic three students’ performance in English in Gwagwalada Area Council, Abuja, Nigeria. To achieve this objective, seven research objectives, seven research questions as well as seven research hypotheses were formulated. The researcher used quasi-experimental research design comprising experimental and control groups) for the study. The Researcher also reviewed some related literatures during which some previous studies relating to the topic were also reviewed. The population for the study was eighteen (18) Upper Basic Schools in Gwagwalada Area Council, Abuja, Nigeria. A sample size fifty (50) U.B three students each was for the experimental and control groups respectively. The actual schools used for the study were selected using non-random convenient sampling technique. However simple random sampling technique was used to select the particular classes on which the intervention was carried out. Ten test questions each were set on the five areas of subject-verb concord in this study. To ascertain the validity and the reliability of the instrument, experts and my supervisors vet the instrument. A pilot test was also conducted on thirty (30) U.B. three students from Upper Basic School Hajj Camp, Gwagwalada Area Council, Abuja, Nigeria. The researcher administered pre-test and post test to the experimental and control groups respectively to determine the effects of subject-verb concord instruction on the students’ academic achievement in English Language. The researcher used a t-test to analyze the data collected from the students’ pre-test and post test. The result of the analysis of the data collected for the research led to the following findings (among others); the students in experimental group subject-verb concord had a higher mean score than the students in the control group in the post test. The researcher therefore concluded that subject-verb concord instruction has remarkable effects on U.B. three students’ academic achievement in English Language in Gwagwalada Area Council, Abuja, Nigeria. Based on the findings, the Researcher made these recommendations among others; subject-verb instruction should be incorporated in the school curriculum by the curriculum planners. Students should be taught subject-verb concord from at least basic four classes to form part of their foundations to learning English grammar. Real objects should be considered as first instructional resources when teaching singular subject-verb concord. Teachers should set questions on subject-verb concord in every terminal examination to get the students acquainted with these rules.
  • Thumbnail Image
    Item type:Item,
    CHEMICAL CONSTITUENTS AND CHARACTERIZATION OF THE BIOLOGICALLY ACTIVE COMPOUNDS OF ARISTOLOCHIA ALBIDA DUCH
    (2023) ABDULKAREEM Halimat
    In order to treat a variety of ailments in Africa, natural treatments have been used all over the world. Cancer is a major health issue in the world. Chemotherapy, which is mostly used to treat cancer has side effects since it is given for a lengthy period of time. So there is need to provide an alternative treatment from natural compounds from plants. Aristolochia albida plant has been used in traditional medicine to treat various forms of cancer. In this study, n-butanol was used to extract the powdered A. albida material for 72 hours before it was concentrated in a rotary evaporator. The crude extract contains tannins, steroids, glycosides, triterpenes, saponins, and flavonoids, according to phytochemical screening. The DCM and MeOH fractions of the crude n-Butanol extract of A. albida as well as the crude n-Butanol extract were exposed to the cytotoxicity assay (Brine Shrimp Lethality assay (BSLT) and MTT Assay. When tested against five distinct human cancer cell lines, methanol fraction and n-butanol extract showed good activity against human breast adenocarcinoma (MCF7). Also, n-Butanol extract exhibited the greatest toxicity than Etoposide standard drug against human prostrate carcinoma cells. Two compounds were isolated from this study, which include clerodane diterpenoid (AA2) and lupeol (AA4).
  • Thumbnail Image
    Item type:Item,
    MICROBIAL COMMUNITIES ACROSS SELECTED DUMPSITES IN THE FEDERAL CAPITAL TERRITORY ABUJA, NIGERIA
    (2023) OKOROANYANWU, Ugochi Ogechi Stella
    This research was conducted in the six area councils of the Federal Capital Territory (FCT) Abuja, Nigeria with the aim to assess the microbial communities across selected dumpsites. A total of Seventy-two (72) composite soil samples were collected. The sampling points within each area council included three levels: Contamination, Soil depths and Waste types. These soil samples were taken to the laboratory for physical, chemical and microbial characteristics. The results of the chemical and physical properties of the different dumpsites showed that the soils were predominantly loamy sand and sandy loam and were characterized by very high sand content. The isolation of microbes associated with selected dumpsites was done using the spread plate technique. A total of 87 bacteria isolates and 70 fungi isolates were isolated from contaminated soils while the non-contaminated soils recorded 36 bacteria and 20 fungi respectively across the six area councils. The highest numbers of bacteria and fungi isolates were recorded from contaminated soils at the depth of 0-15 cm, as 64 and 46 respectively. Across the area councils, the highest number of bacteria (23) and fungi (17) isolates were recorded in Abaji and Kuje area councils respectively while the least number of bacteria (18) and fungi (12) were reported in Bwari and AMAC respectively. With respect to waste types across the six area councils in the FCT, the highest number of bacteria (55) and fungi (44) isolates were found among Hospital wastes and Food Industry wastes respectively. The least number of isolates for both bacteria (19) and fungi (16) were recorded in Automobile workshop wastes. The predominant isolated bacteria include Klebsiella pneumoniae, Staphylococcus aureus and Escherichia coli while the predominant isolated fungi species include Aspergillus niger, Aspergillus flavus and Penicillium citrinum. It was concluded that the presence of bacteria and fungi loads caused by the different wastes dumped at different sites connotes a great risk to humans and the environment. Microorganisms such as Bacillus and Klebsiella species can be used as biofertilizers through composting for agricultural purposes; recycling of wastes and waste products were one of the recommendations that can be used to reduce and manage wastes.