November 2014

Hospital waste generation and management practices in Owerri, Nigeria

This study is aimed to estimate the rate of waste generations and describe the waste disposal/management practices. The study surveyed the waste generation and management practice of 12 hospital and clinics selected using multistage sampling techniques from the list of hospitals in Owerri Municipal. Wastes generated were weighed and parallel to that, data on patient influx, number of beds, length of stay and waste...

Author(s): Nwakwuo Geoffrey Chima, Abanobi Okwuoma C., Abaraogu Uchechukwu John, Uwalaka Chiamaka Henrietta, Asonye Iheoma Chekube and Nwankpa Promise

November 2014

Microbiological quality and safety of some selected vegetables sold in Jimma town, Southwestern Ethiopia

Raw vegetables are major vehicles for the transmission of foodborne infections. In Ethiopia, there is a habit of consuming raw vegetables as salad, particularly tomato (Solanum lycopersicum L.), cabbage (Brassica oleracea L.), carrots (Daucus carota L.), lettuces (Lactuca sativa L.) and green peppers (Capsicum annuum L.) without adequate treatment. The objectives of this study were to evaluate the microbiological loads,...

Author(s): Alemayehu Dugassa, Ketema Bacha and Tsige Ketema

November 2014

Development of a geographic information system (GIS) based road network in Port Harcourt

The aim of this work was to develop a geographic information system (GIS) based road network map of Port Harcourt city that can be used to analyze traffic congestion within the city and suggest possible solutions. The handheld global positioning system (GPS) was used to acquire geographic coordinates of major locations experiencing traffic jams, bad spots and schools. The transformed GPS coordinates were added to the...

Author(s): Ngerebara, Owajiokiche Dago and Dienye, Samuel Aminna

November 2014

Mortality assessment of Oreochromis niloticus fingerlings in varying salinity and influence of salinity changes on acute toxicity of lead

The setting of safe limits for lead (Pb) into the lagoon and protection of fishes such as Oreochromis niloticus has been based on its toxicity ignoring the influence of salinity, an important parameter in the lagoon. The study therefore investigates the salinity tolerance and relative acute toxicity of lead nitrate [Pb(NO3)2] under fresh water and varying salinity against O. niloticus fingerlings. A total of 280...

Author(s): Osuala Fidelia Ijeoma and  Bawa- Allah Kafilat Adebola

November 2014

Spatial and temporal variations in selected heavy metals in water and sediment from the Mhlathuze Estuary, Richards Bay

Spatial and temporal variations in water (total, dissolved and particulate), and sediment concentrations of seven heavy metals, Al, Cr, Cu, Mn, Pb and Zn from the Mhlathuze Estuary were analyzed. Effects of environmental factors on the metals in the estuary were also investigated. In water, metals concentrations varied spatially as well as seasonally with highest concentrations of Al Cr, Fe, Mn and Zn recorded in...

Author(s): H. M. Mzimela, V. Wepener and D. P. Cyrus