MEASUREMENT AND ANALYSIS OF RADIATION LEVELS AT REFUSE DUMPSITE IN SELECTED AREAS IN UYO METROPOLIS, AKWA IBOM STATE, NIGERIA
Okon P. Akpan, Udeme. U. Inyang, Kufre R. Ekandem Itoro A. Sampson & Philomena A. Etuk
Akwa Ibom State Polytechnic
Ikot Osurua, Akwa Ibom State, Nigeria
Email: apostleop5family@yahoo.com
Corresponding author: Okon Akpan
ABSTRACT
This work was conducted to assess the level of radiation within Uyo metropolis using three dumpsites, dumpsite1 (Udo street), dumpsite2 (Itam market) and dumpsite3 (University of Uyo). This was achieved using a portable inspector alert nuclear radiation monitor (Serial number 1212, made in U.S.A) to measure the radiation exposure rate in microseivert per year ( µSvyr-1) . The measurement was conducted at interval of five (5) meters away from the point of reference (dumpsites) up to fifty meters. The results obtained reveal that the average absorbed dose in the measurement in dumpsite1 was 143.70, while dumpsite2 recorded 88.53 and dumpsite3 recorded 75.38. This result is far higher than 70 as recommended by UNESCO on effects of atomic radiation, which could be as a result decay duration, nature of waste generated etc. It is recommended that the enlightenment programme be carried out to educate the people by the government on refuse disposed method; this however could put a stop to the indiscriminate disposal of refuse, re-circling method should also be adopted by virtues of transforming the already waste materials from size and shape into reusable forms.
Keywords: Annual dose rates, effective dose, nuclear radiation meter, refuse dumpsites, radiation levels