hadiza ahmad | University of Abuja, Nigeria (original) (raw)

Papers by hadiza ahmad

Anthem Press eBooks, Mar 7, 2023

Transport Policy, 2021

This paper reflects on the mobility experiences of women in African cities in COVID-19, based on ... more This paper reflects on the mobility experiences of women in African cities in COVID-19, based on research conducted both prior to and following entry into the COVID-19 'moment'. It draws on material collected during an ongoing action research study aimed at addressing the everyday transport and mobility challenges faced by young women living in poor peripheral communities of three African cities-Abuja, Cape Town and Tunis. The project has the specific objective of supporting young women's improved access to employment opportunities through trialling various mobility/transport-related skills interventions (based on prior in-depth analysis of mobility constraints). With the onset of COVID-19 some readjustments to the research focus and planned interventions became necessary. The research teams, together with an NGO partner, are now working to chart how young women's everyday experiences of mobility and transport-both as transport users and as transport sector workers-are changing as processes of lockdown and their relaxation evolve. The paper covers the period from early 2019 through to March 2021, and offers reflections regarding 'lived experiences' of mobility practice prepandemic, during the pandemic, and the potential longer-term mobility-related impacts for women resident in low-income neighbourhoods in a post-COVID-19 era. This leads to consideration of key policy lessons. There is potential for prioritisation of Non-Motorised Transport interventions towards a green restart that would benefit women (for instance through promoting women's cycling), and for growing women's participation as transport operators, even perhaps the usage of drones to aid women's safer pedestrian travel. But such interventions will require far greater representation of women in COVID-19 and wider transport decision-making entities than has hitherto been the case.

Journal of Multidisciplinary Engineering Science and Technology (JMEST), 2020

This study assessed the effect of topo sequence position on soil chemical properties in flood pla... more This study assessed the effect of topo sequence position on soil chemical properties in flood plain irrigated soils of GADA BIYU area of KWALI Area Council, Abuja, FCT. Two catanas (A and B) and three slope segments were identified. Soil samples were collected from each profile pit in accordance with horizons starting from lower horizons to avoid contaminating samples. Transect placement and sampling intervals along transects were determined subjectively to capture the full range of soil variability within landforms. The depth of the auger borings was 0-15 and 15-30 cm (surface and sub-surface respectively). The soils were analyzed forSoil pH, Organic Carbon, Total Nitrogen, Available Phosphorus, CEC, Exchangeable Cations and Percentage base saturation, Exchangeable acidity in the soil. Descriptive statistics and a One-way Analysis of Variance were used to analyze the data. .Findings revealed that values gotten for soil pH shows that the soil in the study area is moderately acidic, in the same vein ANOVA result showed that there was no significant difference (p>0.05) in the pH values of the soil determined in H2O and in KCl, The study further revealed that the EC values were rated low to moderate, also Organic carbon and soil organic matter showed the same trend in the soils, the values gotten indicated a moderate to very high distribution within the profiles and along the toposequence with much higher values in the middle and lower slope sections. Furthermore, The total nitrogen values within the profiles decreased with increasing soil depth, however, the distribution of nitrogen within the profile. Also findings show that the value of P recorded in the soil was rated as being high with a mean value of 15.83 mgkg-1in the upper slope, 16.02mgkg-1 in the middle slope and 20.92mgkg-1 respectively in the same vein findings revealed that the distribution of the basic cations in the soil showed that Ca and Mg were the most abundant in the soil. Also the the cation exchange capacity of the soils along the topo sequence recorded was very low. Based on the findings the study recommended that organic matter should be continuously applied to the soil as a means of improving soil structure, and the nutrient capital reserve of the soil.

ABUJA JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL AMANAGEMENT, 2021

This study was carried out with the purpose of assessing variation in soil morphological properti... more This study was carried out with the purpose of assessing variation in soil morphological properties along a toposequence in Gada-Biyu irrigation area, Abuja, Nigeria. Data was sourced from both primary and secondary source, the primary data involve the soil samples collection from various site in the study area. The result revealed that morphological properties of the soils were relatively deep reaching up to 170-200cm deep except for the lower and middle slopes which were high, Soil colours ranged from reddish yellow, to brownish yellow and dark grey to grey and light brownish grey, mottles were common in the middle and lower slopes especially in the endopedens, Soil structure was uniformly moderate while some horizons were coarse, angular and blocky, the soil consistence indicate the range from non-sticky non plastic to slightly sticky plastic. Generally, soil morphology in the study area varies along slope position and is slightly affected by irrigation practice variably down the slope. The study therefore, suggests toposequence specific management to avoid blanket conclusion.

NIGERIA JOURNAL OF SOLAR ENERGY

Transport Policy 110(5, 2021

ASSESSMENT OF THE LEVEL OF CONFORMITY OF WUPA SEWAGE TREATMENT PLANT TO ENVIRONMENTAL STANDARDS, 2022

Over the last twenty years, Abuja, especially the Federal Capital City (FCC) and its neighbouring... more Over the last twenty years, Abuja, especially the Federal Capital City (FCC) and its neighbouring satellite towns have witnessed dramatic increase in human population which has exerted so much pressure on waste generation (liquid and solid waste) and surface and ground sources of portable water. It has become unbearable for the Federal Capital Territory Water Board to meet up with the ever increasing demand for portable water. Wupa treatment plant is the only plant that treats wastewater for the entire Federal Capital Territory. Abuja municipal area is designed such that all sewers from households, businesses, companies and government agencies collect together at the sewage treatment plant in Idu industrial Area, this wastewater is eventually released into the Idu River which is the only source of water for Idu community, an outbreak of epidemic from such plant can lead to serious loss to the country. Therefore, this research work focused on the assessment of the level of conformity of Wupa sewage treatment plant, Abuja Municipal Area Council, FCT, having the following objectives; assessing physiochemical analysis of the wastewater influent and effluent, assessing the bacteriological analysis of the wastewater influent and effluent, comparing the physiochemical and bacteriological properties of the water with Federal Ministry of Environment (FMEnv) standard for quality water and determine if the water of the sewage treatment plant conform with environmental standards. It made use of both primary and secondary data. Primary data were through water samples from the treatment plant, total of five (5) samples were collected randomly in selected point from Influent and Effluent of sewage treatment plant and information regarding physiochemical and bacteriological properties of water from the treatment plant was obtained from the laboratory, Microsoft Excel software, Clerk's (1984) Compliance Equation and one-way Analysis of Variance was used to analyzed data. Result obtained showed that value of turbidity (250), total suspended solids (218.7), Biochemical oxygen demand (122.5) and chemical oxygen demand (250) of influent water was higher than value obtained from effluent waste of 3.34, 19.4, 6.5 and 26 for turbidity, total suspended solids, BOD, and COD respectively. Also the value of Total plate count of the influent of 6000 was higher than value of effluent of 2000. The value of turbidity, TSS, COD of influent is higher than the FMEnv standard for quality water, the value of BOD, total plate count on both influent and effluent is higher than the FMEnv standard for quality water. The of values Physico-Chemical parameters of effluent water show 100% compliance with FMEnv standard and 50% for Microbial Bacterial of effluent water except for B.O. D5 which was at 0%. Assessing the level of compliance for sample water before treatment at the influent, value for turbidity, Total suspended solid, Biochemical oxygen demand and Chemical oxygen demand, total coliform and total plate count was at 0% compliance with the standard. Therefore, the following recommendation were made that a thorough and formal environmental audit of the facility be done as non has been done since the facility was setup in 2006, that more should be done with regards to the UV-radiation tank to ensure 100% conformity with FEPA standard of 0 CFU/100ml, effort should be made at improving the solid waste

IMPACT OF TOPOSEQUENCE ON HEAVY METALS IN THE FLOODPLAIN SOILS OF GADABIYU, KWALI AREA COUNCIL, ABUJA, NIGERIA, 2022

Monitoring the effects of irrigation on soil quality is considered as central to the issue of sus... more Monitoring the effects of irrigation on soil quality is considered as central to the issue of sustainable harvest and productivity in irrigated areas. This is largely due to realization of the fact that it can have unfavorable effect on soil properties leading to loss of sustainable productivity if not frequent monitored. Consequently, many studies have been carried out in many parts of the world documenting the various ways in which irrigation alters soil conditions, more especially how irrigation water impact negatively on soil quality. However, such studies are limited in scope as most have not considered the effect of soil catena on productivity of irrigated soils. This study assessed the effect of toposequence position on heavy metals in the flood plain soils of GADA BIYU, KWALI Area Council, Abuja, FCT. Two catena (A and B) and three slope segments were identified. Soil samples were collected from each profile pit in accordance with horizons starting from lower horizons to avoid contaminating samples. Transect placement and sampling intervals along transects were determined subjectively to capture the full range of soil variability within landforms. The depth of the auger borings was 0-15 and 15-30 cm (surface and sub-surface respectively). The soils were analyzed for lead (Pb), Nickel (Ni), Chromium (Cr) and Cobalt (Co). Descriptive statistics and a One-way Analysis of Variance were used to analyze the data. Findings revealed that values gotten for Lead(Pb) were decreasing with increase in soil depth suggesting that surface horizons of the soils had higher Pb values in the study area, generally Pb was extremely high with values that ranged from 90.75 to 3505.50 mgkg-1 with a mean value of 1326.33 mgkg-1 and standard deviation of 986.20 (SE±239.01). In the same vein, the values recorded for Co was rated as very high, whereas Nickel (Ni) values were rated as being moderate. Cr was higher in the surface soil horizons than on the sub-surface soils. Generally, the study showed that heavy metals in the soils vary within and between the catena and also along the slope. Based on the findings the study recommended periodic test of soil and water sources within the area based on slope positions. This will ensure sustainable soil quality and suitability control. It is important to include this aspect in all plans for irrigation and sustainable soil quality management.