Nationwide survey of radon levels in indoor workplaces in Mexico using Nuclear Track Methodology
Por:
Espinosa G., Golzarri J.I., Angeles A., Griffith R.V.
Publicada:
1 oct 2009
Resumen:
This report presents the preliminary results of an indoor workplace radon survey conducted during 2006-2007. Monitoring was carried out in 24 of the 32 federal entities of Mexico, incorporating 26 cities and 288 locations. The area monitored was divided into 8 regions for the purposes of the study: Chihuahua (a state with uranium mines), North-Central, South-Central, Southeast, South, Northeast, Northwest, and West. These regions differ in terms of geographic and geological characteristics, climate, altitude, and building materials and architectonic styles. Nuclear Track Methodology (NTM) was employed for the survey, using a passive closed-end cup device with Poly Allyl Diglycol Carbonate (PADC), known by its trade name CR-39 (Lantrack (R)), as detector material. Well-established protocols for making continuous indoor radon measurements were followed, including one-step chemical etching in a 6.25 M KOH solution at 60 +/- 1 degrees C with an etching time of 18 h. The track densities wer
Filiaciones:
Espinosa G.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
Golzarri J.I.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
Angeles A.:
Instituto Nacional de Investigaciones Nucleares, Km. 36.5 Carretera Mexico-Toluca, La Marquesa, Ocoyoacac, 52750, Estado de Mexico, Mexico
Griffith R.V.:
756 Cypress Run, Woodbridge, CA 95258, United States
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