What the science says:
In terms of lifetime relative risk of developing lung cancer, a child exposed to 1,000 Bq/m3 radon from birth to their 6th birthday (5 years) has already inhaled the equivalent of a lifetime breathing in air with 200 Bq/m3 radon. 1 pCi/L is equal to 37 Bq/m3.
The Becquerel unit, abbreviated Bq, is named after founder Henri Becquerel. The preferred radon level measurement unit is Becquerels per cubic meter, Bq/m3. One Becquerel equals one radioactive disintegration per second.
Reference: Chen, J. Canadian Lung Cancer relative Risk from Radon Exposure for Short Periods in Childhood Compared to a Lifetime. Int. J. Environ. Res. Public Health 2013, 10, 1916-1926.
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