| Radon,Lung Cancer Risk and Environmental Geology in Gejiu Area |
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| 作者姓名： | 卢伟 王任重 |
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| 作者单位： | [1]TianjingInstituteofGeologyandMineralResources,Tianjin300170 [2]GejiuNo.308Team,SouthwestNonferrousMetalExploration,Gejiu661400 |
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| 摘 要： | The incidence of lung cancer in the Gejiu area of Yunnan Province ranks the first in the world.The radon level(indoor,soil) was measured in the Gejiu area by the SSNTD method from 1990 to 1996,The result indicates an extensive high-level of indoor radon in that area though U and Th are lower in local limestones,The indoor radon level of houses located in the geologic fault zone is 6 times high that 2km far from the fault zone.The reason probably is that the radon level of soil in the fault is 6-8 times high that 1 km far from the faults.our data indicate that a lower range of radon levels,0-100Bq.m^-3,exists in healthy families.However,a higher radon level,over 800 Bq.m^-3,is often found corresponding to that of cancer patients‘ homes(the house-owners are suffering from either lung cancer or leukaemia or liver cancer),Obviously,an increase in lung cancer incidence follows an increase in indoor radon level,The risk of cancer induced by indoor radon is no longer an inference,but a fact.
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| 关 键 词： | 氡 肺癌 断层 云南 固态核径迹检测器 |
Radon, lung cancer risk and environmental geology in Gejiu area |
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| Wei Lu,Shuqing An,Renzhong Wang,Zhaoneng Ye.Radon,Lung Cancer Risk and Environmental Geology in Gejiu Area[J].Chinese Journal of Geochemistry,1997,16(3):278-282. |
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| Authors: | Wei Lu Shuqing An Renzhong Wang Zhaoneng Ye |
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| Institution: | (1) Tianjin Institute of Geology and Mineral Resources, 300170 Tianjin;(2) Gejiu No. 308 Team, Southwest Nonferrous Metal Exploration, 661400 Gejiu;(3) Gejiu Office of Cancer-Prevention, 661400 Gejiu |
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| Abstract: | The incidence of lung cancer in the Gejiu area of Yunnan Province ranks the first in the world. The radon level (indoor, soil)
was measured in the Gejiu area by the SSNTD method from 1990 to 1996. The result indicates an extensive high-level of indoor
radon in that area though U and Th are lower in local limestones. The indoor radon level of houses located in the geologic
fault zone is 6 times high that 2 km far from the fault zone. The reason probably is that the radon level of soil in the fault
is 6–8 times high that 1 km far from the faults. Our data indicate that a lower range of radon levels, 0–100 Bq·m−3, exists in healthy families. However, a higher radon level, over 800 Bq·m−3, is often found corresponding to that of cancer patients’ homes (the house-owners are suffering from either lung cancer or
leukaemia or liver cancer). Obviously, an increase in lung cancer incidence follows an increase in indoor radon level. The
risk of cancer induced by indoor radon is no longer an inference, but a fact.
Supported by the National Natural Foundation of China. |
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| Keywords: | radon lung cancer geologic fault zone SSNTD (solid state nuclear track detector) Gejiu |
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