Introduction. A safe way to reduce the onset of oncological diseases is to protect the population from exposure to radon. In order to know the risk of radon influence on the health of the population. it is necessary to quantify the radon concentrations in the homes air and environment components. https://bookmarksaifi.com/story19588382/integrando-a-hist%C3%B3ria-oral-e-as-narrativas-a-abordagens-pedag%C3%B3gicas-problematizadoras-na-forma%C3%A7%C3%A3o-inicial-de-professores-de-matem%C3%A1tica