Assessment of environmental radioactivity has been performed using radiation meters, Radalert100 Digilert-200, and a geographical positioning system (GPS) within the Federal University Otuoke, Bayelsa State Nigeria. Three to four readings were taken at each point and the mean value recorded as exposure level with standard deviation. The average exposure rate ranged from 9.0 to 29.0μRh^-1 . The exposure dose rate (D), annual effective dose equivalent (AEDE), excess lifetime cancer risk (ELCR) were computed and they ranged from 87.0 to 252.3nGyh-1 , 0.107 to 0.309mSvy^-1 , 0.005 to 0.15x10^-3 respectively. The results at some points showed elevation above the maximum permissible limits as recommended by the International Council on Radiological Protection for the public and nonnuclear environment. This study provides baseline data for future environmental studies. As much as the excess lifetime cancer risk is not excessive, regular monitoring is recommended since the university is in close proximity with hydrocarbon exploration and exploitation zones. This is in a view to checking sudden elevation, bearing in mind that the short and long term health side effects of elevated background ionizing radiation (BIR) resulting from Technologically Enhanced Naturally Occurring Radioactive Materials (TENORMs) are undesirable.