Bonfim, Sarah Andresa, Zildete Rocha, Raoni Adão Salviano Jonusan, Mariza Ramalho Franklin, Paulo Roberto Rocha Ferreira, Talita Oliveira Santos, and Arno Heeren Oliveira. 2021. “VARIATION IN RADON CONCENTRATION IN SOIL GASES TO DETECT THE NAPL PRESENCE”. Brazilian Journal of Radiation Sciences 9 (1). https://doi.org/10.15392/bjrs.v9i1.1397.