COLEMAN, R D Radon and radon daughter hazards in mine atmospheres; investigations on supplemental control. [electronic resource] - American Industrial Hygiene Association quarterly Dec 1956 - 405-10 p. digital Publication Type: Journal Article ISSN: 0096-820X Standard No.: 10.1080/00968205609344443 doi Subjects--Topical Terms: AtmosphereHumansMiningRadium--adverse effectsRadonRadon Daughters