Founding Editor: Prof. Dele Ogunseitan
Abbreviation: Afr. J. Environ. Sci. Technol.
Start Year: 2007
Page 1 of 44, showing 20 records out of 876 total, starting on record 1, ending on 20
https://doi.org/10.5897/AJEST2017.2433[Article Number: F36923956352]
In this study, total arsenic was determined in soil, common grass (Cenchrus ciliaris), plant leaf (Dogwood; Cornus florida) and an invertebrate (Stag beetle; Rhinotia hemistictus). This was with a view of investigating its distribution and level in the environment. Samples were randomly collected from stratified sections of the study area, processed and analysed using validated acid extraction technique. Detection of... Read more.
https://doi.org/10.5897/AJEST2017.2463[Article Number: F04E9F356354]
Contamination of water from feacal sources can lead to major outbreaks of water-borne diseases when such water is consumed without proper treatment. The microbiological and physicochemical analyses of well-water sample collected near pit latrines in Oko, Oyo State, Nigeria were carried out during rainy and dry seasons. Microbiological analysis was carried out by using Most Probable Number (MPN) technique while... Read more.
https://doi.org/10.5897/AJEST2017.2408[Article Number: C16C48756356]
Recently, forest land grant for investment which is often misquoted as bare land is posing a challenge to biodiversity conservation efforts in the Majang Zone of Gambella Region, Ethiopia. On the other hand, Majang zone has always been known for dense forest cover and rich biodiversity; but recently threatened due to plantation investment. In order to tackle such prevailing problems, timely information about past and... Read more.
https://doi.org/10.5897/AJEST2017.2439[Article Number: 212938F56358]
Most developing countries use existing knowledge and infrastructure for wastewater in the treatment, reuse and disposal of faecal sludge. There is need to have a clear picture of the risk faecal sludge poses in relation to wastewater if effective treatment, disposal and reuse systems are to be implemented. Little work has been done to quantify the risk faecal sludge poses in relation to wastewater in a localized... Read more.
https://doi.org/10.5897/AJEST2017.2435[Article Number: 12189D555961]
This paper focuses on the contribution of Indigenous Knowledge Systems (IKS) on food security in Mbokomu ward. The main objective of this paper is to ascertain the use and application of IKS on food security and document methods used in food preservation. Various ethnic groups have different methods of preserving food and use it during the food shortage. Thus, people in Mbokomu ward used several methods in preserving... Read more.
https://doi.org/10.5897/AJEST2017.2419[Article Number: C71880855964]
To improve water quality, there should be a mechanism of keeping safe water source from chemical contaminants in an effective and protective way through the application of regular checkup and with interventions by taking exact measure periodically before it is supplied for usage. The intention of this research is aimed at determining the level of common cations, anions, heavy metals and physical parameters in drinking... Read more.
https://doi.org/10.5897/AJEST2017.2447[Article Number: D4258C355970]
The Allium cepa assay was employed, in conjunction with physico-chemical analysis, to investigate the potential cytotoxicity and genotoxicity of three industrial effluents (soap, beverage and paint) from the southeast of Nigeria. For in situ monitoring of cytotoxicity level, inhibition of mitotic division was investigated and for genotoxicity evaluation, chromosomal aberration assay was carried out. The results showed... Read more.
https://doi.org/10.5897/AJEST2017.2434[Article Number: 72CAF5555578]
Research on the abundance of plankton in Tebing Tinggi Island waters ecosystem, Meranti Island District, Riau Province was conducted in March 2017. The observations focused on the phytoplankton and zooplankton communities at ten stations. The variations in the abundance of plankton on average between the location groups were 4428 to 1716224 cells/m3 and 23938 individuals/m3 (67.73%), respectively for phytoplankton and... Read more.
https://doi.org/10.5897/AJEST2013.1562[Article Number: A15BC4D55582]
Foraminiferal biostratigraphy and palaeoenvironmental interpretation was carried out on core samples (5 samples between intervals 5-55 m) recovered from borehole ET (BH-ET) located in Etankpini area of the Calabar Flank, south eastern Nigeria. Lithologic description of the borehole samples were carried out and the borehole was sampled at 5 m interval. The samples were later composited at 10 m interval and a total of six... Read more.
https://doi.org/10.5897/AJEST2017.2397[Article Number: E7088DA55599]
The disposal of oil sludge together with construction and demolition waste in Tanzania is still a challenge in both space and technology. In order to reduce the space requirement for oil sludge together with construction and demolition waste disposal, the recycling of these waste becomes a vital option. This paper is mainly concerned with the determination on the possibility of recycling the oil sludge together with... Read more.
https://doi.org/10.5897/AJEST2017.2446[Article Number: 2E47A6C55601]
Anaerobic co-digestion is one of the most promising auxiliaries for treating waste because of the high energy redemption. Bio-digester is designed and apparatus installed for anaerobic co-digestion of cow waste with crop residue in order to manufacture biogas. Gas production is measured by using water displacement method. The experimental results show that 1 kg of cow dung can produce about 15 to 30 L of biogas per day.... Read more.
https://doi.org/10.5897/AJEST2017.2406[Article Number: E772C5F67005]
To enable sustainable management of groundwater resources, knowledge of dominant hydrogeological processes is fundamental. In this study, stable isotopes of water [δ18O and δD] and major inorganic ions were used to investigate recharge and groundwater flow processes in a catchment underlain by fractured and faulted hornblende-biotite-gneiss. Spatial and temporal geochemical distributions consistently... Read more.
https://doi.org/10.5897/AJEST2017.2432[Article Number: 864515267007]
A survey and assessment of noise level with its impact on mill workers were conducted in two Jute Mills of Chittagong city. These industries are highly noise producers; the workers of such mills are highly prone to noise pollution effect, especially hearing problems. Higher noise level in different working sections of the Jute Mill was recorded which includes the siren played, noise from the main entrance, mill’s... Read more.
https://doi.org/10.5897/AJEST2017.2347[Article Number: 0A56E5E67009]
Countries lack the infrastructure to deal with the drainage following flashfloods from localized downpours which may originate from localized evaporation or its combination with that from surroundings or from hurricanes. The natural distribution of water is the best and optimum for the globe. Among the world’s riparian countries, India makes her territory both the sources and the sinks of river discharges by... Read more.
https://doi.org/10.5897/AJEST2017.2427[Article Number: 895B5AE66857]
Groundwater is an important freshwater resource in Tanzania. However, rapid urbanization, informal/unplanned settlements and agricultural intensification in major basins threaten its sustainability. Most groundwater aquifers in the country are not monitored or managed, thus exposing them to potential contamination and overexploitation. This paper is based on a research conducted in the months of February and March,... Read more.
https://doi.org/10.5897/AJEST2016.2173[Article Number: 8832A1966756]
In this study, we established changes in minimum and maximum temperature over the past 20 years, and how these changes are likely to affect the status of key banana pests and black Sigatoka disease in main banana cropping systems. A survey was conducted at elevations of 1200, 1400, 1600 and 1800 m above sea level in 13 sites previously used in 1992/1993. Mean monthly minimum and maximum temperatures at different... Read more.
https://doi.org/10.5897/AJEST2017.2358[Article Number: F1195EE66752]
The potentials and limitations of very high spatial resolution images for aboveground carbon (AGC) estimation are unknown and the methods are not developed. This research was designed to develop a method that predicts AGC at the individual tree level using object-based analysis of very high resolution QuickBird satellite images and in situ diameter at breast height (DBH) measurements. This study was based on the fact... Read more.
https://doi.org/10.5897/AJEST2017.2348[Article Number: 976D57B66518]
In Niger, climate change affects the majority of the population, especially the rural communities. The present study intends to contribute to the understanding of the actual perception of climate changes by the population along with the degree of apprehensiveness of the population regarding the climatic manifestations described by scientists. To this end, two communities have been targeted in the Department of Dakoro.... Read more.
https://doi.org/10.5897/AJEST2017.2353[Article Number: 56A14E166520]
Awash River has important socio-economic and ecological values in Ethiopia. On the contrary, it is prone to serious water pollution. This study aims to assess the spatial and temporal variation of water quality of the river. Means of the 9 years’ (2005-2013) water quality dataset of 19 parameters from 10 stations in the basin were considered. After validating, normalizing and checking the sampling adequacy and... Read more.
https://doi.org/10.5897/AJEST2017.2421[Article Number: B022E4166522]
Most of the leather industries in Ethiopia discharge their effluent partially or without any treatment to the nearby water bodies. This creates a serious effect on aquatic biota and surrounding environment due to its high organic loading and chromium content. To minimize the effect, tannery wastewater should be treated before the effluent is discharged to the environment. Therefore, the main objective of the study was... Read more.
Page 1 of 44, showing 20 records out of 876 total, starting on record 1, ending on 20