Radon and radon daughter hazards in mine atmospheres; investigations on supplemental control.
D001272:Atmosphere; D006801:Humans; D008906:Mining; D011883:Radium / Q000009:adverse effects*; D011886:Radon; D017687:Radon Daughters
D017687:Radon Daughters; D011886:Radon; D011883:Radium
MINING; RADIUM/injurious effects