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Home  >  Volume 28. No.2 (Nov. 2014)

47. An Assessment of the Health Hazard of Background Radiation around Nasarawa State University, Keffi, Nigeria by I. E. Abah and Chifu E. Ndikilar - Volume28, No. 2, (November, 2014), pp 359 – 364
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Abstract  

The levels of background radiation at 30points within Nasarawa State University,Keffi were investigated using a Nuclear Alert Radiation Monitor. The metre was held about 1m above ground level and the readings were taken in Count per Minute(CPM) and Microsievert per hour (mSv/hr) in the morning  and afternoon for 17 days. A random sampling of five (5) major points was also carried out to ascertain the difference in background radiation level in the morning, afternoon and evening. The result obtained showed that the University Entrance with Equivalent dose rate of 0.56mSv/yr and Effective dose rate of 0.13mSv/yr; the University Library with an Equivalent dose rate of 0.69mSv/yr and Effective dose rate of 0.14mSv/yr have the highest background radiation level. Also, the Boy’s Hostel with an Equivalent dose rate of 0.51mSv/yr and Effective dose rate of 0.21mSv/yr; the Girl’s Hostel with an Equivalent dose rate of 0.35mSv/yr and Effective dose rate of 0.15mSv/yr are characterised with high background radiation level. The football pitch with Equivalent dose rate of 0.16mSv/yr and Effective dose rate of 0.01mSv/yr, the building area with Equivalent dose rate of 0.08mSv/yr and Effective dose rate of 0.02mSv/yr have  low level of radiation with little contribution to background radiation measured at some other locations within the Campus. The radiation level is found to be within the healthy range of Nigerian Basic Ionizing Radiation and thus does not pose any significant health risks to the inhabitants of the area.    

 Keywords: Background radiation, health effect, Keffi 

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