This paper evaluates blastability characteristics of dolomitic marble and granodiorite for explosive selection. The rock samples were tested in the laboratory for point load strength index, uniaxial compressive strength and specific gravity. Also, joint spacing and joint orientation were measured on the field. Blastability index was estimated for both rocks using empirical equation. The results of the various analyses revealed that point load strength index of dolomitic marble is 3.52MPa and that of granodiorite 4.37MPa. The uniaxial compressive strength of dolomitic marble and that of granodiorite are 93.57MPa and 116.40MPa. The specific gravity of dolomitic marble and granodiorite are 2.72 and 2.75. The porosity of dolomitic marble and granodiorite are 0.72% and 0.63%. The results of Blastability Index (BI) are 55.55 and 57.88 for dolomitic marble and granodiorite respectively. The joint orientation for dolomitic marble and granodiorite is 23.90°/142.83° and 26.83°/116.40°. Based on the results obtained for both rocks high explosives (ANFO) is selected for the rocks but where there is water problem emulsion is recommended.

The study investigated the effects of post-blast explosive residues on ecosystems around Prodeco Quarry industry in Calabar Nigeria by collecting explosives residues and air/fumes samples. The variation between the intensity and temperature of explosive dissolution in the mine environment shows that TNT appears at the lowest temperature of 10 0 C and PETN reflected at about 35 0 C and NG shows almost at 58 0 C. Consequently, 5-15 kg of ANFO produced 10-30 lit/kg of nitrogen oxide compound (NOx) fumes while 20 kg ANFO produced 40 lit/kg of carbon monoxide fume. Also, 0.2 µg/L concentration of explosive in water recorded the highest mean recovery of 116.0 % while 1.0 µg/L recorded the highest values of 99.0 %. The mean recovery in soil sample is range between 105.0-126.0 % while that of forest is range between 91.0-107.0 % with the 50.0 µg/L concentration of explosive. The study concluded that the contaminating effects of the explosives residues have direct and indirect influences on the growth and development of the ecosystems.

This paper reported the influence of health records management practice on disease surveillance and notification system in Atakumosa West Local Government Area of Osun State. The study aimed at combining insights of how health records management practice bridges different aspects of disease surveillance and notification system in Atakumosa West Local Government Area of osun State. The study adopted survey research design to establish relationship between health records management practice and disease surveillance and notification system in Atakumosa West Local Government Area of Osun State. Structured questionnaire was used to elicit data on the variables under investigation and a total of 115 out of 120 respondents completed the questionnaire with a total of 96% response rate. Simple percentage distribution was used to analyze and answer the research questions posed in this study. The inferences drawn from existing literatures, postulated theories and data collected from the field indicated that correlation exists between health records management practice and disease surveillance and notification System, as evident in previous research works, case studies and analyzed data. The study recommended the need for the management of Atakumosa West Local government to procure and install appropriate information technology to sustain health records management practice and disease surveillance and notification system. Also, capacity building, adequate funding, provision of logistics and working materials that will guarantee timely collection, processing, and availability of healthinformation are very imperative to a result-oriented health

This research work provided information on the particulate in the airshed of a university farm and its toxicity potential. The study area for this research was Landmark University farm. The ambient airborne particulates were monitored at eight different section of the farm using the Aeroset 531S particulate monitor. A control sampling point was also situated in front of the University library some kilometers away from the University farm. 11.42 – 32.40 μg/m3, 59.32 – 473.52 μg/m3 and 79.58 – 955.10 μg/m3 for PM2.5, PM10 and TSP respectively. The control point measured averages were of 20.80 μg/m3, 64.46 μg/m3 and 80.86 μg/m3for PM2.5, PM10 and TSP respectively. An assessment of toxicity potential of these particulates shows unhealthy air conditions at some sampling location at the University farm.