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Radon and thoron working levels from ordinary industrial-hygiene dust samples

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1001 ‎$0‎MAPA20080030797‎$a‎Ogden, T.L.
24510‎$a‎Radon and thoron working levels from ordinary industrial-hygiene dust samples‎$c‎T.L. Ogden
520  ‎$a‎The method is an improvement of that of Ogden, and has the following advantages over other methods: the measurements do not require special samples, but can be made on ordinary airborne dust samples; the long sampling time is more suitable for stimating average exposure than the conventional short sample; radon and thoron working levels are both obtained; and the method is very sensitive. Side-by-side comparisons show good agreement with other methods
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080605278‎$a‎Contaminantes químicos
65011‎$0‎MAPA20080539658‎$a‎Radón
65011‎$0‎MAPA20080621186‎$a‎Control de la contaminación
65011‎$0‎MAPA20080591960‎$a‎Métodos de análisis
65011‎$0‎MAPA20080551797‎$a‎Muestreos
65011‎$0‎MAPA20080576615‎$a‎Medicina laboral
7404 ‎$a‎The Annals of occupational hygiene
7730 ‎$t‎The Annals of occupational hygiene‎$d‎Oxford [etc.]‎$g‎nº 1, July 1977 ; p. 49-53