18 research outputs found

    Microbial Content of Abattoir Wastewater and Its Contaminated Soil in Lagos, Nigeria

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    Microbial content of wastewater in two abattoirs and the impact on microbial population of receiving soil was studied in Agege and Ojo Local Government Areas in Lagos State, Nigeria. Wastewater samples were collected from each of the abattoirs over three months period and examined for microbial content. Soil samples contaminated with the wastewaters were also collected and analyzed for microbial content as compared to soil without wastewater contamination in the neighborhood (control). Some physico-chemical parameters of the samples such as total dissolved solid, chemical oxygen demand, etc., were examined. The wastewater samples from both abattoirs were highly contaminated; Agege abattoir showed mean bacterial count of 3.32 × 107 cfu/ml and Odo abattoir showed mean count of 2.7 × 107 cfu/ml. The mean fungal populations were 1.6 × 105 and 1.2 × 105 cfu/ml for Agege and Odo abattoirs respectively. In the contaminated soil sample, mean bacterial count was 3.36 × 107 cfu/ml compared to the 1.74 × 106 cfu/ml of the control sample. High microbial load in abattoir wastewater with negative effects on microbial population in soil, in this study, further confirmed the need to treat wastewater rather than discharging it to the environment

    I will not go, I cannot go: cultural and social limitations of disaster preparedness in Asia, Africa, and Oceania

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    While much work has been invested in addressing the economic and technical basis of disaster preparedness, less effort has been directed towards understanding the cultural and social obstacles to and opportunities for disaster risk reduction. This paper presents local insights from five different national settings into the cultural and social contexts of disaster preparedness. In most cases, an early warning system was in place, but it failed to alert people to diverse environmental shocks. The research findings show that despite geographical and typological differences in these locations, the limitations of the systems were fairly similar. In Kenya, people received warnings, but from contradictory systems, whereas in the Philippines and on the island of Saipan, people did not understand the messages or take them seriously. In Bangladesh and Nepal, however, a deeper cultural and religious reasoning serves to explain disasters, and how to prevent them or find safety when they strike

    Trends in monthly rainfall and temperature in Rachuonyo North Sub-County, Kenya

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    We analyse Climate Research Unit (CRU) Precipitation (1961-2014) and Temperature (1985-2014) data trends over Rachuonyo North Sub County at 50×50 km resolution. Time series and correlation analysis of the data was carried out. Temporal characteristics of temperature and Rainfall were determined. One sample t-tailed test of hypothesis was carried out. An increasing trend in temperature is observed over the years while a decreasing trend in precipitation is observed by the year 2014. The trends exhibited a cyclic and Seasonal pattern with Increasing Variability. Descriptive statistics revealed Rainfall and Temperature Means of 119.8 mm and 19.6 °C respectively. The results of one tailed t-test revealed that the change in Rainfall and temperature patterns over the area of study were not statistically significant.Keywords: Climate Change, Temperature, Rainfall Trend, Rachuonyo, Keny

    Microbial Content of Abattoir Wastewater and Its Contaminated Soil in Lagos, Nigeria

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    Microbial content of wastewater in two abattoirs and the impact on microbial population of receiving soil was studied in Agege and Ojo Local Government Areas in Lagos State, Nigeria. Wastewater samples were collected from each of the abattoirs over three months period and examined for microbial content. Soil samples contaminated with the wastewaters were also collected and analyzed for microbial content as compared to soil without wastewater contamination in the neighborhood (control). Some physico-chemical parameters of the samples such as total dissolved solid, chemical oxygen demand, etc., were examined. The wastewater samples from both abattoirs were highly contaminated; Agege abattoir showed mean bacterial count of 3.32 × 107 cfu/ml and Odo abattoir showed mean count of 2.7 × 107 cfu/ml. The mean fungal populations were 1.6 × 105 and 1.2 × 105 cfu/ml for Agege and Odo abattoirs respectively. In the contaminated soil sample, mean bacterial count was 3.36 × 107 cfu/ml compared to the 1.74 × 106 cfu/ml of the control sample. High microbial load in abattoir wastewater with negative effects on microbial population in soil, in this study, further confirmed the need to treat wastewater rather than discharging it to the environment

    THE EFFECT OF SOME NIGERIAN LOCAL HERBS ON HELICOBACTER PYLORI

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    Four Nigerian medicinal plants commonly used in the treatment of bacterial infections were tested for antimicrobial activity against twenty local strains of Helicobacter pylori recovered from patients with gastro-duodenal ulcers and gastritis. In vitro agar diffusion assay revealed anti-Helicobacter pylori activity of ethanolic extracts of C. papaya and M. lucida to 80% (16/20) of the isolates tested, while the ethanolic extracts of O. gratissimum and P. amarus inhibited the colonial growth of 35% (7/20) of these strains. The zones of inhibition ranged from 5 – 20 mm in diameter. Contrastingly, the aqueous extracts of these plants appeared to lack anti-Helicobacter pylori activity except in M. lucida and O. gratissimum where inhibition of a total of three isolates was observed. The present results suggest the presence of anti-Helicobacter pylori principles in ethanolic extracts of C. papaya and M. lucida and support their future use in the treatment of ulcers and gastritis in Nigeria. (Af J Clinical & Exp Microbiology: 2003 4(2): 29-35
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