Estimation of Airborne Absorbed Dose Rate of Surface Gamma Radiation and Radioactive Environment Assessment in Panjiazhuang Area of Guiyang County
The large area of granite exposed in Panjiazhuang area of Guiyang,results in a generally high concentration of radionuclide activity in soil.The risk of higher airborne ab-sorbed doses of gamma radiation has become a hot issue.In this paper,the air absorbed dose rate of surface gamma radiation is estimated based on the existing gamma spectrum measure-ment data.According to the relationship between the air absorbed dose rate of surface gam-ma radiation and the suitability of human settlements,the suitability zoning of human settle-ments is carried out.Within the controlled area of 0.68 km2,the safe zone of gamma radia-tion measures 197.90 km2,accounting for 98.95％of the total area.The risk zone is 1.42 km2,accounting for 0.71％,which shows that the natural radioactive human settle-ment environment in Panjiazhuang area is good.This paper can provide support for the loca-tion of human settlements,reasonable and effective use of land resources in Panjiazhuang ar-ea,and also provide necessary reference for accelerating the health and sustainable develop-ment of rural areas in Panjiazhuang area.
Panjiazhuang of Guiyang countygamma spectrumthe level of radioactivityair absorbed dose ratehuman settlement environment security
NETL
NSTL
万方数据
维普
