Radon in our homes is the main source of exposure to ionizingradiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries.
我们家中的氡是接触致电离辐射的主要来源,在许多国家中占大众接触自然发生的辐射源的50%。
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Conclusions Imaging procedures are an important source of exposure to ionizingradiation in the United States and can result in high cumulative effective doses of radiation.