ABSTRACT Highly concentrated urban areas have experienced many floods over the last decades. There has been significant increase in the trend of extreme rainfall events, in the face of a lack of effective flood management systems. Though rainfall in Ghana has been decreasing since the 1970’s, and the government has initiated many disaster reduction interventions, incidences of flooding have ironically continued to increase. The study explores the post-flood disaster response mechanisms, ef...
ABSTRACT Cocoa is one of the most important cash crops in West Africa especially Ghana. It contributes 23% of the foreign export earnings from the agricultural sector in Ghana. Cocoa beans are fermented and dried before exporting. The fermentation period in Ghana is 6 to 7 days but some cocoa farmers under-ferment their cocoa beans leading to the development of purple cocoa beans. This study was carried out at CRIG and African Regional Postgraduate Programme in Insect Science (ARPPIS) at the ...
ABSTRACT The hydrogeochemical data of groundwater of southwestern coastal Districts of the Central Region of Ghana were examined to determine the main factors controlling the groundwater chemistry and study the resultant water type formed in order to determine the suitability of the water for different uses. Different geochemical interpretation methods were used to identify the geochemical characteristics. The pH values of groundwater samples showed that 36 samples had pH values below lower...
ABSTRACT Extracts of two indigenous Ghanaian medicinal plants Clausena anisata and Hyptis spicigera were bioassayed against housefly (Musca domestica L.) and cockroach (Periplaneta americana (L)) for various insect control activity. The extractives bioassayed were the petroleum ether and methanol extracts and essential oil of the plants. The lethal toxicity of the plant extractives were bioassayed using topical application and petri dish residual method against adult flies and cockroach nymph...
ABSTRACT A manual eight multi-leaf collimator (MLC) has been designed and fabricated for the Cirus cobalt-60 machine at the Komfo Anokye Teaching Hospital. The fabricated MLC is made up of a high carbon steel leaves. The leaf in each bank has a standard width of 7.5 cm projected at the isocentre at a thickness of 4.6 cm. The leaf transmission factor was determined to be 4.8%, which is within the acceptable standard of below 5%. The cobalt-60 beam characteristics such as beam profiles, output ...
ABSTRACT The temporal distribution of four important cocoa mirid species (Distantiella theobroma Dist, Sahlbergella singularis Hagl, Helopeltis bergothii and Bryocoropsis laticollis) was studied in three differently managed cocoa farming systems from May 2013 to April 2014. In addition, the incidence of Bathycoelia thalassina, Characoma stictigrapta, Anomis leona, Earias biplaga, Eulophonotus myrmeleon, Oecophylla longinoda and Crematogaster africana, were recorded. The three systems were: Or...
ABSTRACT Surveys were conducted to identify the natural enemies of the oil palm leafminer, Coelaenomenodera lameensis Berti and Mariau (Coleoptera: Chrysomelidae). Different developmental stages were recovered from infested leaflets and reared for the emergence of parasitoids. Four parasitoids all belonging to the order Hymenoptera and family Eulophidae were identified. They were Neochrysocharis species, Chrysocharis species, Pleurotroppopsis species and Apleurotropis species. Parasitism on C...
ABSTRACT Radio communication is an integral part of any military operation. This helps commanders at all levels to achieve command and control in their operational environment. The employment of these radios with their corresponding antennas has led to an increase in the concern of the potential health risks that may arise as a result of exposure to radio frequency (RF) radiations. The main objective of this research was to determine the levels of radio frequency field exposure to military pe...
ABSTRACT The climate of the Sawla Tuna Kalba District is the tropical continental type where only one rainy season in a year, occurs between early May and late October this makes surface water resources insufficient in the area. Groundwater is the main water supply in this region the utilization of groundwater for various purposes is common. In this part of northern Ghana, groundwater serves as a major source of freshwater for domestic and agricultural purposes. This study investigated the qu...
ABSTRACT All life forms including human need water resources in order to live healthy, promote sustainable development and ensure their well- being. The study assessed public willingness to accept and reuse treated wastewater as an alternative water resource to support the dwindling existing water resources for irrigation and the consumption wastewater irrigated crops. A social survey based on random sampling of 232 respondents in Ashaiman, capital of Ashaiman Municipality which has a well di...
ABSTRACT Land use/cover alteration within lake basins is occurring at accelerated rate most importantly in developing countries like Ghana. Anthropogenic activities (livelihood change, population growth, agricultural intensification and practices) and natural factors like seasonal variations are in most situations the major cause. To examine the effects of land use/cover on the physico-chemical and biological properties of Lake Bosomtwi, satellite images of the Lake’s watershed covering the...
ABSTRACT The population within Bongo and Kassena Nankana West Districts, in the Upper East Region of Ghana is estimated to be about 84,545 and 70,667, respectively. An estimate of about 80% of the population depends on groundwater for domestic and agricultural purposes. However, groundwater resources in the Districts is at risk due to anthropogenic activities such as rapid increase in irrigation activities and animals rearing, open defecation and uncontrolled disposal of animal droppings, imp...
ABSTRACT Water is used in almost all human activities and large amounts of wastewater are produced every time. Wastewater need to be treated before it is discharged into the environment because it contains possible harmful substances which can pollute the environment and threaten life. Waste water treatment methods vary from industry to industry according to the process utilized. In most cases, the contaminants are not fully removed from waste water before discharge, due to certain malfunctio...
ABSTRACT This study examines the current state of the shielding integrity of the 38.7 TBq Co-60 gamma ray scanner with an average energy of 1.25 MeV operated by NICK TC Scan Limited, which has been in use for destination inspection at Aflao Border of Ghana, for the past six years, (2010-2016). The facility uses a high energy ionizing radiation in its operation; therefore continuous adequacy of the installed biological shielding is critical to the protection and safety of the workers and the g...
ABSTRACT Although wastewater treatment plants efficiently reduce the loads of pathogens in wastewater, the conventional treatment processes do not show significant removal of antibiotics, antibiotic resistant bacteria and antibiotic resistant genes, resulting in the introduction of these contaminants into the environment. This has human health implications for wastewater reuse and the use of effluent receiving water bodies as irrigation sources. Humans may be exposed to resistant bacteria a...