African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007

AJEST Articles in press

Determination of Radon Concentration Levels in Kilembe Mines Limited and Hima Cement Quarry Kasese District, Uganda

Article in Press

The research was conducted to determine the radiological health risks of radon exposure which can trigger cancer in workers and the general public in Kilembe Mines and Hima Cement quarry in Kases District. The mean radon concentration levels in the mines were found in the range of 64 ± 40 Bqm-3 to 307 ± 28 Bq m-3.and the mean effective dose was 4.98 ± 0.5mSvy-1 ranging from 1.8 ± 0.2mSvy-1 - 6.84 ± 0.6 mSvy-1 while at...

Author(s):STEPHEN AURICE WEKOYE, ANITAH TUSIMIRE

Effects of Climate Variability on Local Communities Living in and Around Queen Elizabeth National Park, Uganda.

Article in Press

This paper explores the effects of climate variability on local communities living within and around Queen Elizabeth National Park, (QENP), their coping mechanisms and challenges encountered. Data was collected from 250 respondents through questionnaires administered to small holder farmers, salt miners and fisher folks as well as in-depth interviews and focus group discussions (FGDs) held with selected households in...

Author(s):Faridah Sendagire Nalwanga, Merle Sowman, Paul Mukwaya, Paul Musali, Alex Nimusiima, Isaac Mugume

Towards a Sustainable Electronic Waste Management in Uganda: A Stakeholder Perspective

Article in Press

The management of electrical and Electronic waste (E-waste) requires a collaborative approach against unsustainable Electronic waste management. This paper attempts to assess the role of E-waste actors in regard to E-waste management sustainability by evaluating their course of action. It proposes an E-waste Management conceptual framework based on key stakeholders and validates it with 346 top Government employees in...

Author(s):SONNY JUMA NYEKO, SAMALI MLAY, JUDITH AMONG, ABDALLAH IBRAHIM NYERO

Assessing the occurrence of heavy metals in edible fruits grown around mine tailings dam in Kitwe.

Article in Press

Mining activities on the Copperbelt province of Zambia have been of great environmental concern, despite recorded improvements in the socio-economic sector. Heavy metal contamination of soils resulting from depositing of mine tailings dam have posed possible health risks for communities located nearer such facilities. The current study was conducted around residential homes surrounding Kitwe tailings dam (TD25). This work...

Author(s):Hildah Musole Chiyangi, Ngoy Mwanabute, Elisha Ncube, Jhonnah Mundike

MODELING AND SIMULATION OF REACTORS IN PFR AND PBR SERIES FOR THE CONVERSION OF METHANOL INTO HYDROCARBONS

Article in Press

The aim of this paper is to size the PFR reactor and to deduce the likely useful mass of the catalyst in the PBR for the production of hydrocarbons such as propane, butane and pentane from methanol via dimethyl ether (DME). The use of these reactors would require kinetic analysis, material balance, energy balance and then sizing. The interest in the chemical catalytic conversion of synthesis gas to gasoline suggests that...

Author(s):Biabongo N. Pamphile, Ndjibu N. Jonathan, Ekoko Vanshok, Ekulu Ndiakama Gédéon

FOREST COVERS CHANGE IN THE CENTRAL OROMIA: WALMARA DISTRICT: ETHIOPIA (1985-2017)

Article in Press

In Ethiopia, forest cover changes were registered at local level that adds up to the changes observed at the country wise. Like other part of the country the quick spread of deforestation over latest epochs has resulted in the translation of the majority of the Walmara district forest into isolated bits. Geographic information system (GIS) techniques and remote sensing (RS) from satellite platforms offer a way to identify...

Author(s):Tokuma Urgessa, Tadesse Hunduma and Marsha Gebrehiwot

Knowledge, awareness, and the practices of solid waste management in the Sunyani West Municipality of Ghana.

Article in Press

Solid waste management is one of the critical issues in most developing countries that deprive communities of a sustainable environment and access to public health. Yet, few efforts have been done to create awareness of communities about the possible dangers of inadequate waste management and mitigation measures. This study was conducted to obtain baseline information about the knowledge, awareness and practices of solid...

Author(s):Saeed Ibn Idris Kofi Yeboaha, Kamila Kabo-Bah, Amos T. Kabo-Bah, Amoah Theophilus, Ahmed Mustapha Opoku, Obeng Ayman Manu, Gyan Amoah Ronald, Tienaah Micheal,

Effect of a modified Lifetime Model on e-waste generation in Nigeria under defined reuse options

Article in Press

Reliable data on e-waste generation is important for environmentally sound management systems. This study model’s e-waste generation from existing data on electrical electronics imports, consumption and e-waste generation from Nigerian households. Structured questionnaires were used to obtain information on Electrical Electronic Equipment EEE use, reuse, and disposal from households in Nigeria households. Data from placed...

Author(s):Olusegun Odeyingbo, Baldé C.P, Vanessa Forti

Recycling Mwea Irrigation water for sustainable agriculture

Article in Press

Declining quantity and quality of irrigation water coupled with increasing water demand are serious challenges facing paddy rice production in the world. Reuse of agricultural waste water is increasingly popular in paddy systems but few studies have been done with regards to its quality and effects on soil productivity and environmental risks. The aim of the study was to assess the suitability of effluents from the Mwea...

Author(s):Benjamin Oginga Danga, Josephine N. Onderi

Variability of the magnetospheric electric field due to high-speed solar wind convection from 1964 to 2009

Article in Press

Focusing on the classification of solar winds into three types of flux: (1) slow winds, (2) fluctuating winds and (3) high speed-solar winds HSSW (V ? 450 km / s on average day), the influence of the convection electric field (EM) via the flow of HSSWs during storms in the internal magnetosphere and on the stability of magnetospheric plasma at high latitudes was investigated. Our study involved 1964-2009 period, which...

Author(s):Zoundi Christian,

Phenology and mechanisms of the early upwelling formation In the southern coast of Senegal

Article in Press

Mechanisms of the interannual variability of upwelling onset dates on the Petite-Cote of Senegal are investigated using daily NEMO model data outputs and NOAA ocean surface temperature observations (OISST). We first determined the phenology (onset dates, end dates, duration and occupied area of the upwelling) over the Petite-Côte located in south of the Senegalese coast. Our results show that upwelling in the Petite-Côte...

Author(s):Malick Wade, Mamadou Thiam, Ibrahima Diba, Bouya Diop

THE ENVIRONMENTAL IMPACT OF LANDFILL FIRES AND THEIR CONTAMINANT PLUMES AT THE CHUNGA LANDFILL SITE, LUSAKA, ZAMBIA.

Article in Press

The management of solid waste is recognised as a challenging activity with respect to the environment, particularly within rapidly growing urban centres in Lower Income Countries. This paper examines the issue of landfill-waste-generated fires and resultant pollution plumes sourced within the Chunga Landfill Site, Lusaka, Zambia. We present the results of a geospatial analysis research programme to map and assess risks...

Author(s):Muleya Milimo, Hinchliffe Graham, Petterson Michael

Characterizing groundwater vulnerability in developing urban settings using DRASTIC-LuPa approach – a case study of Aba City, Nigeria

Article in Press

The impact of certain unregulated land-use activities harms the quality of water resources and reduce the sufficiency of drinking water in many developing countries. This study aimed to capture the impact of such activities and evaluate the specific groundwater vulnerability using a modified DRASTIC approach. The DRASTIC-LuPa was proposed and implemented for Aba City, Nigeria by incorporating land-use and the impact of...

Author(s):Uche Dickson Ijioma, Frank Wendland, Rainer Herd

Analytical detection and quantification of Chlorpyrifos in soil, milk, dip wash, spray race residues using high performance liquid chromatography in Kenyan dairy farms

Article in Press

Organophosphate acaricides have extensive use in livestock to manage Ticks and Tick borne diseases, environmental pollution arise due intensive use. The study was aimed at detection and quantification of Chlorpyrifos in soil, dip wash, spray race residues, milk and milk products from Kilifi, Nakuru and Kajiado Counties. A baseline survey was conducted using questionnaire, formal interview and personal observation to...

Author(s):Atego Norbert

Spatio-temporal dynamics of land use on the expansion of coffee agroforestry systems in Cameroon’s production basins

Article in Press

Diachronic analysis of satellite images was used to assess the spatiotemporal dynamics of land use and land cover change in the coffee production basins of Cameroon, located in the forest agro-ecological zones (Moungo and Haut-Nyong) and the highland humid savannah (Noun). A survey of farmers was carried out to identify land use and changes in the area of coffee agroforests over time. While the period 1980 to 2001 was...

Author(s):MARCIEN KUETE FOGANG, MARIE LOUISE AVANA TIENTCHEU, CHRISTOPHER TANKOU, EUNICE NDO

An Analytical Evaluation of Biogas Production Potentials from Coffee Husk Supplemented with Poultry Manure or Cow Dung

Article in Press

Coffee is one of the important crops as its ingredients are being consumed across the continents in a variety of food products and drink forms, and do possess significant economic importance to the coffee producing areas of Ethiopia. Dry coffee processing units generates husk as solid waste which is commonly dumped in the surrounding areas without any treatment. The aim of this study is to evaluate biogas production...

Author(s):Mulissa Jida, Gamta Sagni, Girmaye Kenasa

Analysis of the deposit conditions of sedimentary series of fluvio-lacustrine and aeolian origin in the Djourab desert, in northern Chad

Article in Press

The detailed sedimentary study of the deposit sequences of the ancient hominid sector (SahelanthropustchadensisalisToumaï) of Toros-Menalla, presented here addresses new aspects of the sedimentary geology of the Chad Basin through an original field study of Moi- sediments. Pliocene of the northern basin of CHAD. This is an original contribution that sheds light on new knowledge of sedimentary series of fluvio-lacustrine...

Author(s):Moussa Abderamane

An Analytical Assessment of Climate Change Trends and their Impacts on Hydropower in Sondu Miriu River Basin- Kenya

Article in Press

Hydropower is cost effective environment friendly and worldwide proven sustainable energy source. Driven by streamflow stream flows, it is vulnerable to climate change and land use change. The hydropower production from the two-existing run-of-river hydropower projects on the Sondu Miriu river are vulnerable to rainfall variability and requires proper understanding of the climate change trends and policies to support...

Author(s):Ochieng Willis Owino, Oludhe Christopher, Dulo Simeon, Olaka Lydia

Uroclhoa mosambincensis A POTENTIAL NATIVE PHYTOREMEDIATOR FOR SOILS CONTAMINATED WITH ARSENIC

Article in Press

Industrial development has caused the contamination of the environment, leading to biodiversity loss and human health concerns. The use of native plants and/or their associated microbiota is a sustainable solution for reducing or transforming contaminants into less harmful forms. We aimed to evaluate the remedial potential of Uroclhoa mosambincensis in soils contaminated with arsenic. In a greenhouse experiment, seedlings...

Author(s):Sónia Isabel Ventura Guilundo, Marta Alberto Aduge, Edmilson Enes Manuel Simango, Domingos Maguengue, Esnaider Rodríguez Suárez, Célia Marília Martins, Orlando António Quilambo

Assessment of healthcare waste Pyrotec model 8 incinerator efficiency as a performance indicator at Muhimbili National Referral Hospital in Dar es Salaam, Tanzania

Article in Press

The performance of a healthcare waste Pyrotec Model 8 incinerator at Muhimbili national referral hospital in Dar es Salaam - Tanzania was investigated using two different types of healthcare wastes namely sharps waste and other waste (mass/weight) and as fractions. The other independent factor used in the investigation was diesel oil consumption. The Pyrotec Model 8 incinerator performance was evaluated by determining how...

Author(s):William Wanasolo and Samwel Victor Manyele

Environmental Contamination and Assessment of Heavy Metals in Water and Sediments of Awash River and Its Selected Tributaries

Article in Press

Awash River is considered as most important river for the surrounding community, but it is vulnerable to anthropogenic activities. Thus, the present study was investigated about the pollution status of Cr, Cu, Mn, Cd, and Pb and their ecological risk in aquatic system of Awash River. Water and sediment samples were collected from selected sampling sites of the river and its tributaries and samples were analyzed. The...

Author(s):Tizazu Hailemariam, Habtamu Wodajo, Alemayehu Esayas, Birhanu Hailu

PHYSICOCHEMICAL ANALYSIS OF STAGNANT SURFACE WATER USED FOR DRINKING PURPOSES FOR LIVESTOCKS IN JARAR ZONE SOMALI REGIONAL STATE OF ETHIOPIA

Article in Press

This research was carried out to investigate the physicochemical parameters of livestock drinking water samples collected from Falfal, Degehabur and Bulale areas in Somali regional state of Ethiopia. The objective of this research was to analyze the physicochemical parameters of water ponds used for livestock drink. The result was recorded that, the pH, Temperature, Total Dissolved Solid and Total hardness was 7.17±0.03,...

Author(s):Abi Legesse, Fantahun Adamu

Pollution Assessment of Light Rare Earth Metals in Sediments of the Ogun River

Article in Press

This research was aimed at determining the concentrations of light earth metals in sediments of the Ogun River as well as their pollution and contamination status. Sediment samples collected using a graduated hand held sediment grab were stored in polythene bags and transported to the laboratory in an ice chested cooler. At the laboratory, the sediment samples were air dried, pulverized and sieved. Induced Couple Plasma...

Author(s):Diayi, M.A., Gbadebo, A.M., Arowolo, T.A. and Awomeso J.A

Assessment of Solid Waste Characterization in Keffi LGA, Nasarawa State, Nigeria in View of Adopting Biogas Technology for Solid Waste Management

Article in Press

The assessment of solid waste characterization in Keffi Local Government Area in view of adopting biogas technology for solid waste management was carried out. This was achieved through assessment of the quantity of solid waste generation and the composition in the study area. Materials used for data collection are weighing scale, waste bins and questionnaire. Stratified and systematic samplings were used to select...

Author(s):Abugu Nkechinyere Anthonia

ASSSESSMENT OF THE PHYSICO-CHEMICAL PROPERTIES OF BOREHOLE WATER IN GWAGWALADA AREA COUNCIL ABUJA, NIGERIA

Article in Press

The assumption that borehole water is safe for drinking purpose was verified by empirical study of the physico-chemical properties of borehole water in Gwagwalada Area Council Abuja, Nigeria. The physico-chemical properties of borehole water were anaysed and compared with regulatory standards for drinking purpose. Fifteen samples were collected from five purposely selected wards (Dobi, Ibwa, Tungan-Maje, Zuba and Ikwa) in...

Author(s):Abugu Nkechinyere Anthonia, Oladeinde Olufemi Stephen, Dada Ibilewa and Mustapha Aliyu

Improving future temperature projections with bias correction methods in Lake of Guiers/Senegal

Article in Press

Climate models are generally used to evaluate the climate change impacts. However, they have important biases at the regional or local scales. This study evaluates the future temperature projections in Lake of Guiers/Senegal. For this, we used the daily maximum and minimum temperature from the ensemble mean of five (5) CORDEX (Coordinated Regional climate Downscaling Experiment) regional climate models (RCMs) under the...

Author(s):Alioune Badara Sarr

Innovative technology trumpeting for bringing country’s total sustainable prosperity –A case of Burkina Faso and neighboring countries

Article in Press

With time population and needs have changed many folds and at the same time researchers endeavored to enhance resources and their productivities world over. There have been some noble innovations of universal applications and bring fast improvement in the situations. Objective of the present study was to collate innovations which improve different sectors of needs in Burkina Faso, where socio-economic condition has worsen...

Author(s):R.C. Yadav

BENTHIC MACROINVERTEBRATES IN THE BIOMONITORING OF A NIGERIAN COASTAL WATER

Article in Press

Most coastal waters are exposed to high influx of pollutants due to the obvious elevated human activities. In order to adequately evaluate the extent of toxicity of contaminants in the ecosystem, and their synergistic effects, marine ecologists prefer biomonitoring to chemical approach. The benthic macroinvertebrates, due to their sedentary mode of life and residence at the sediment-water microcosm, are regarded as the...

Author(s):Joseph A. Nkwoji

2.2’-DIPHENIC ACID: A RELIABLE BIOMARKER OF PHENANTHRENE BIODEGRADATION

Article in Press

Phenanthrene is among the 16 priority pollutants thus its mitigation in the environment has been a global concern. It serves as a model compound for the biodegradation study of polyaromatic hydrocarbons (PAHs) because it has both the Bay- and K-region found in most PAH pollutants. Like other PAH pollutants, different means are available for its remediation in the environment, including microbial biodegradation. The...

Author(s):Emmanuel Oliver Fenibo

Geography Information System (GIS) and Remote sensing Based Flood Risk Assessment and Mapping: The Case of Dikala Watershed in Kobo Woreda Amhara Region, Ethiopia

Article in Press

Floods are the most devastating natural occurrences that affect both natural and manmade features existing on the earth's surface. The study area found in the low laying areas of Amhara Region characterized by intensive human activities, a steep slope, heavy rainfall during summer with high drainage density and dominantly verti soil type, proximity to the river were identified as the main factor increasing flood risk....

Author(s):Wondim Almu Ayenew, Kassahun Wubalem Bantie and Hailu Ayene Kebede

Assessment of Farmers Adaptive Capacity to Climate Variability in the Federal Capital Territory (FCT), Abuja, Nigeria

Article in Press

The study assessed the adaptive capacity of crop farmers in the six Area Councils of FCT using Geoinformatics. Socio-economic indicators were used to map the adaptive capacity of FCT farmers to climate variability from 1981-2017. The arable crops considered are: yam, beans and maize. The selected climatic variables based on their importance to crop production are: rainfall, temperature, relative humidity and potential...

Author(s):Dada Ibilewa, Samaila K. Ishaya and Joshua I. Magaji, Mustapha Aliyu

Analysis of Land use and land cover changes detection within urban watersheds: The case of Addis Ababa Ethiopia

Article in Press

Watersheds around Addis Ababa are critically threatened by rapid urbanization expansion. This study aims to explain the rate of urban expansion and interaction with communities around the city. GIS and RS were used to evaluate the Land use and Land cover changes and urban expansion in the last 30 years using Landsat images and selected households. Results revealed that agricultural/bare land increased by 29.02% from 1984...

Author(s):Bereket Tesfaye Haile, Kassahun Ture Bekitie and Alazar Alemayehu

Briquette Production from Sugar Cane Bagasse and its potential as clean source of energy

Article in Press

Large quantities of bagasse are regularly accumulated on open spaces around sugar factory thereby endangering fragile ecosystem. The sugar cane bagasse carbonization process can be put in to effect as an environmentally friendly, energy self-providing continuous flow technology. Therefore, the objective of this study was to use bagasse for the production of high caloric value briquette to safeguard the environment from...

Author(s):Messay Emana Getu, Birhanu Ayalew Abebe, Mulissa Jida Midekssa and Genet Tsegaye Araya

A Community Perspective of flood occurrence and weather forecasting over Kampala City

Article in Press

Weather and climate issues have become increasingly recognized among the global challenges especially in the era of climate change. Kampala city has faced a number of flooding events in the past that have led to serious damages in many low lying areas of the city. A study was conducted in one of the flood prone areas in Kampala city to understand the community perspectives on flood occurrence and weather forecasting in the...

Author(s):Nimusiima Alex

IMPACT OF MINING ON ENVIRONMENT: A CASE STUDY OF TAITA TAVETA COUNTY, KENYA

Article in Press

Research on the impacts of mining on the environment was conducted on nine purposive selected mining sites in Kamtonga and Mkuki, Taita Taveta County, Kenya. The FOLCHI method was adopted to quantify the environmental impact of mining activities in gemstone mining sites. The affected environment surrounding the pits was broken down into three components such as Topography, Vegetation and Air. The effect of the three...

Author(s):Irene Wakio Mwakesi, Raphael Githiga Wahome, Daniel Weru Ichang’i

Increase Soil Condensation Capacity for Agricultural Purposes

Article in Press

The issue of water scarcity in many parts of the world, especially in arid and semi-arid regions, is a major dilemma. The amount of moisture for plants is not comparable to rain, but in arid areas, it is a huge contribution to plant water supply. In this research, the effect of using Peltier to improve soil condensation by performing several tests was studied in order to investigate the possibility of increasing soil...

Author(s):Samane Arvandi, Forood Sharifi

Characterization of healthcare waste in Tanzanian zonal referral hospitals as a key factor for energy recovery

Article in Press

In this study, healthcare waste (HCW) generated in four referral hospitals in Tanzania namely: Muhimbili National Hospital (MNH), Kilimanjaro Christian Medical Center (KCMC), Bugando Medical Center (BMC) and Tumbi Regional Referral Hospital (TRRH) was characterized to establish its feasibility for energy recovery. The HCW collected and loaded into the incinerators was weighed and its composition determined (as highly...

Author(s):P. R. Mwaria , M. E. Kaseva, S. V. Manyele

CLIMATE MODELS BIASES AND CORRECTION METHODS EVALUATION IN MOUHOUN RIVER BASIN, BURKINA FASO

Article in Press

Projected climate change in the Sahel region could strongly affect water resource availability and further compromise food security. Like other Sahelian countries, water resources in Burkina Faso face this threat. This study evaluates five precipitation bias correction methods on climate models outputs in the Mouhoun river basin. Climate Hazards InfraRed Precipitation with Stations (CHIRPS) products merged with Comité...

Author(s):Mahamadi TABSOBA, Abdou ALI and M'po Yèkambessoun N'TCHA

Physicochemical and metal quality evaluation of the ground water of the chief town of Sinthiou Maléme Commune in Tambacounda (Senegal)

Article in Press

In the countries underdeveloped in particular in medium rural, the subsoil waters constitute an invaluable resource but they remain fragile and vulnerable because of the demographic pressure, of the uncontrolled exploitation of the discharges, the absence of system of adequate cleansing and of husbandries. This present work aims to evaluate physicochemical and metal quality waters of 10 wells collecting the ground water of...

Author(s):Maoudo hane; Ibrahima diagne; Momar ndiaye; Cheikh Tidiane dione; Dame cisse; Birame ndiaye; Abdoulaye diop

HYDROLOGICAL RESPONSE TO LAND USE AND LAND COVER CHANGES OF RIBB WATERSHED, ETHIOPIA

Article in Press

The analysis examined the Covering the surface within the catchment and its effect on the catchment's hydrological responses. The Soil and Water Assessment Tool (SWAT2009) model was wont to investigate the impact of land cover change on hydrological responses of the study area. Sensitivity analysis result shown SCN curve number (CN), Soil Evaporation Compensation Factor (ESCO), Soil Depth (m) (Sol_Z), Threshold water...

Author(s):Solomon Bogale Aynalem

Strategic Factor Analysis of Solid Waste Management in Southwestern Ethiopia: The Case of Jimma Metropolitan City

Article in Press

Introduction: Solid waste management is a cosmopolitan environmental problem confronting humanities and metropolitan authorities by contributing 80% of all diseases and related mortality. There is low commitment in managing urban environmental issues. Consequently, Solid waste disposal is an important environmental area of concern since information is barely available in the study area. Objective: To measure solid waste...

Author(s):Berhanu Megerssa

ASSESSMENTS OF THE LEVELS OF HEAVY METAL CONCENTRATIONS AND HEALTH RISK IN VEGETABLES FROM HAWASSA INDUSTRIAL ZONE ETHIOPIA.

Article in Press

Concentration of heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb and Hg) in two vegetables (cabbage and potatoes) were determined and the potential health risks due to the consumption of the vegetables were estimated. Mean concentrations of Zn (134.0+5.62 mg/kg), As (0.12+0.01 mg/kg) and Cd (0.32+0.01 mg/kg) in cabbage from Biological Lagoon area and Zn (103.0+8.34 mg/kg), As (0.14+0.01 mg/kg) and Cd (0.31+0.01 mg/kg) in cabbage...

Author(s):Samuel Bekele Gujo, Solomon Sorsa Sota, Daniel Fitamo Arficho, Zinabu Gebremariam Weldesenbet and Gunnhild Riise

Preparation and characterization of Zeolite-Zinc Oxide Nano composite for Removal of Nitrate from Spike water

Article in Press

Nanomaterial assisted removal of pollutants from water has got great attention. This study aimed to evaluate the removal of nitrate using zeolite and zeolite-ZnO nanocomposite. Zeolite-ZnO nanocomposite was prepared by the co-precipitation method. The physicochemical characteristics of the nanomaterials were determined using XRD, SEM, FTIR, and its chemical composition was determined using AAS. The results revealed that;...

Author(s):Temesgen Getahun, Tadesse Alemu, Andualem Mekonnen

Variability and Time Series Trend Analysis of Climate and Local People’s Perception in Janamora Woreda, Northwest Ethiopia

Article in Press

Climate variability and change is the significant environmental and global threat of the current century. This study analyzed variability and time series trend analysis of climate from 1981-2018 and local people’s perception towards climate change in Janamora Woreda, Northwest Ethiopia. Primary data was collected through a household survey from 138 respondents selected by multi-stage sampling method. Secondary data was...

Author(s):Adamsew Marelign

Evaluation of outdoor human thermal comfort conditions in selected streets of Nairobi City's Centre

Article in Press

This paper evaluated the outdoor human thermal comfort conditions for urban heat island management in Nairobi city. Environmental parameters were measured at microclimatic and instantaneous scales on a typical summer day in Nairobi City's Centre's selected streets. The RayMan software package and ENVI-met v4.0 BETA model were used to evaluate both measured and simulated physiologically equivalent temperature (PET) to...

Author(s):Emmanuel Ochola Matsaba, Ines Langer, Aggrey Ochieng Adimo, John Bosco Mukundi and John Mwibanda Wesonga

Assessment of toxic and essential trace metals in Unwana borehole water in Afikpo North, Ebonyi State

Article in Press

Water samples labeled A, B, C, D and E from five different boreholes in Unwana were analyzed to assess the level of toxicity and essential trace elements present. The results obtained showed slight variation in temperature for all the samples, having sample B, recording the highest values of 28 oC. As for pH, sample B recorded a pH of 6.58 which lies within the limits recommended by WHO. For the trace metals, Cd(II),...

Author(s):Ndukwe, M. K., Igara C. E. And Idara,A.E

Effectiveness of the Implementation of Plastic Bags Ban: Empirical Evidence from Kenya

Article in Press

Purpose – The purpose of this paper is to assess the effectiveness of the implementation of plastic bags ban in Nakuru town, Kenya. Design/methodology/approach – Descriptive cross-sectional research design was adopted for the study. The target population comprised of 500 traders in Nakuru retail market located in Central Business District. Stratified sampling techniques were used to pick a sample size of 167...

Author(s):Wahinya M.K. Paul and Mironga J.M.

Adverse Impact of Climate change on Mambioko Community dependent Forest and Local Perception on vulnerabilities and Responses-Centre Region of Cameroon

Article in Press

This study was undertaken to identify and assess climate change vulnerabilities and impacts on the livelihoods of forest dependent communities in Mambioko community forest in the Centre Region of Cameroon. Primary data was collected from 120 households; key informants, focus group discussions and was supplemented with secondary data from desk review of relevant literature. Forest resources were generally perceived by...

Author(s):Tieminie Robinson Nghogekeh and Chia Eugene Loh

Analysis of Urban Solid Waste Management Practices and Determinants Using Contingent Valuation Method

Article in Press

This research was conducted aiming at addressing environmental quality by assessing the waste discharging practices of households, identifying the most significant variables affecting willingness to pay for urban solid waste management and the cost that can be saved because of the improvement in waste management techniques in Mizan-Aman town. Contingent valuation coupled with logistic regression method of analysis was...

Author(s):Tesfaye Yirssaw Bizuneh

Socio-economic and health status of rag pickers in the dump site of Mekelle city, Northern Ethiopia

Article in Press

Rag pickers are people who collect recyclable and reusable materials from mixed wastes in cities. A cross sectional survey on socio economic and health status among randomly selected rag pickers in the dump site of Mekelle city, Ethiopia was done during 2019. The study showed that all rag pickers were males with age of 19 to 25 years and 60% of them were educated up to secondary level. They worked continuously for 12...

Author(s):Mulu Gebreslassie and Prakasam Vadakkedath Raman

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