A Study on Measurement and Evaluation of Radiation for Environmental Impact Assessment

Abstract

It's necessary to avoid influence in local hot spots and understand representative value in a target area for environmental impact assessment. Hot spots can be determined by calculating the ratio of a radiation dose rate at one height to that at another height at the same location. An environmental radioactivity impact assessment method for obtaining the accurate representative value for the surveyed area, and for determining the size and the appearance ratio of hot spots was proposed based on the height-radiation dose rate relationship. In this method, the optimum number of sampling locations is determined by eliminating the number of hot spots by subtracting the number of hot spot locations from the total number of sampling locations, and by keeping the sampling number within the required statistical error.