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就是提醒大家注意环境本身都有辐射。
The range of radiation exposure
On average Australians are exposed to 1.5 mSv each year from natural sources. This is about the same amount of radiation received from 75 chest X-rays.
自己家所在区域的平均辐射剂量,可以在这里查:
https://www.arpansa.gov.au/under ... n-sources/radon-map |
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