Natural environmental γ radiation dose rate in Qingdao area
Aims: The aim of our study is to reveal the natural radiation dose rate in Qingdao area. Methods: The extensive large-scale environmental survey was conducted in Qingdao area in 2003. It is the first-time investigation integrating population survey and geological environment survey in China. The sampling grid was designed in 0.1 km×0.1 km. For the first time the sampling area covers the whole city. Important findings: the average value of γ radiation dose rate in environment is 91.6 nGyh-1.Neither human-induced radiation source nor significant natural radiation background was found. The spatial pattern of γ radiation dose rate in Qingdao area was given. The relationship of γ radiation dose rate and geological environment was also discussed. The natural γ radiation in Qingdao area falls within the normal scope of natural background γ radiation level although it is a little higher than the average value of the whole country for its special geological structure. The study can provide reference for the radiation level assessment of city environment as well as the city construction plan.
Natural γ radiation dose rate Qingdao city
Limei QU Pifu CONG De YAO
China National Marine Environment Monitoring Center Engineering and Environmental Protection Center, Institute of Oceanology, CAS, Qingdao 266071, China Shandong University of Technology, SDUT, Zibo, C
国际会议
上海
英文
3876-3878
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）