广州市土壤天然放射性水平调查

The Investigation of the Soil Natural Radiation in Guangzhou

本文主要分析了广州市土壤天然放射性水平的调查数据。本次土壤氡浓度调查基本采用2km×2km的网格对广州市老八区均匀布点,采用GPS(卫星定位)定位。本次调查的结果表明:广州市的γ辐射剂量率平均值高于全国水平,是高放射性本底地区;氡浓度水平虽然在不同的季节变化较大,但两次不同季节的调查结果均与全国土壤氡平均值相当,属于中等水平。

This article has mainly analyzed the Guangzhou soil natural radioactivity level investigation data. This soil radon density investigation basically uses 2km×2km the grid to the Guangzhou eight areas. We used GPS position. This investigation result indicated that： Guangzhou gamma the radiation dose rate mean value is higher than the national level, is the high radioactive background area radon density level although is bigger in the different seasonal variation. But two seasons investigation results with the the medium level. national soil radon density mean value quite. It belongs to