lˈæstli ðə juːnˈaɪɾᵻd nˈeɪʃənz saɪəntˈɪfɪk kəmˈɪɾi ɔnðɪ ɪfˈɛkts ʌv ɐtˈɑːmɪk ɹˌeɪdɪˈeɪʃən ʌnsˈɪɹ kənsˈɪdɚ ðætðɪ ɛkspˈoʊʒɚɹ ʌvðə lˈʌŋz tə wˈʌn bˌiːkjˈuː ʌv tˈuːhˈʌndɹɪd twˈɛnti tˈuː ˌɑːɹɹˈɛn ɪn ˌiːkwɪlˈɪbɹiəm wɪð ɪts dᵻkˈeɪ pɹˈɑːdʌkts fɔːɹ wˈʌn jˈɪɹ wɪl kˈɔːz ɐ dˈoʊs ʌv sˈɪksti wˈʌn mjˈuː ˌɛsvˈiː.
Lastly the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) consider that the exposure of the lungs to 1 Bq of 222Rn (in equilibrium with its decay products) for one year will cause a dose of 61 μSv.