METEOROLOGICAL AND STACK HEIGHT ANALYSIS FOR THE SAFE ATMOSPHERIC DISPERSION OF RADIOACTIVE WASTES

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Date
1986-10
Authors
GARBA, HARUMA BALA
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Abstract
Ahmardu Bello University (A.B.U. ) ,Zaria, Nigeria is planning to purchase and install a small nuclear research reactor within the Zaria environs. It is a well known fact that the operation of any nuclear facility generates some airborne wastes in addition to other classes of waste. This work was carried out to analyse the meteorological condition!inherent to the Zaria environment, with special referenc i to atmospheric dispersion of any airborne effluents the research reactor miqht release. To this end, meteorological data collected ov r thirty-two years at the Institute of Agricultural Research, A.B.U. Zaria was analysed. Result from the meteorological analysis was utilized to obtain the expected dispersion and distribution of airborne effluents from the reactor at the proposed site. Graphical presentation of ground level air concentration of emitted effluents from exhaust stacks of various heights is given. Results of meteorological analysis for the selected site was utilized in conjuntion with the discharges from a reactor of similar make and rating with the Ahmadu Bello University reactor. An optimum stack height of not- less than thirty meters was obtained. This height will ensure adequate dilution of airborne effluents, with no downwind location being exposed to concentration level above the internationally accepted- maximum permissible level. For stack height thirty meters, airborne effluent concentration downwind will always be below ten fermiCuries per cubic centimeter. This holds for all the monthly cases analysed and also for the downwind locations where maximum concentrations occur.
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Submitted In partial fulfilment of the requirements for the degree of Master of Science, Nuclear Physics Department of Physics Ahmadu Bello University Zaria
Keywords
METEOROLOGICAL,, STACK HEIGHT ANALYSIS,, SAFE ATMOSPHERIC DISPERSION,, RADIOACTIVE WASTES,
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