Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Radon igasi risina ruvara uye risinganhuwi rinoberekwa nokuputsika kweradium ine mwaranzi, iyo iriwo chigadzirwa chokuputsika kweuranium, inowanikwa muchikanda chePasi. Zvigadzirwa zvinoparadzwa nemwaranzi zvinokonzera kuti zvinhu zvomuviri zviite ionized, zvichikonzera kushanduka-shanduka uko dzimwe nguva kunova kenza. Radon ndicho chinhu chechipiri chinonyanya kukonzera kenza yemapapu muUnited States, ichikonzera kufa kwevanhu vanenge 21 000 gore negore. Ngozi yacho inowedzera ne 8<unk>16% nokuda kwe 100 Bq/m3 imwe neimwe yokuwedzera kwechikamu che radon. Nhamba yegasi rinonzi radon inosiyana-siyana zvichienderana nenzvimbo yacho uye kuumbwa kwevhu nematombo ari pasi payo. Inenge imwe mudzimba 15 muU.S. ine mwero weRadon unopfuura nhungamiro inokurudzirwa ye4 picocuries palitita (pCi/l) (148 Bq/m3).  Mubvunzo: Chii chinoita kuti mwero wegasi reRadon ushanduke?
nzvimbo uye kuumbwa kwevhu riri pasi uye matombo