![]() Recently, there is a renewed interest on the part of epidemiologists studying additional possible effects (e.g., low birthrate and sex ratio). ![]() Earlier dosimetric studies (1950-1990) attempted to correlate the magnitude of biological effects (e.g., increased cancer incidence) with variations in radium uptake. In the 1920s, painters in the radium watch dial industry frequently tipped their brushes with their tongues resulting in the ingestion of radium-226 and/or radium-228. doi:10.1016/j.envint.2012.03.013.Īnalysis of ovarian dose of women employed in the radium watch dial industry: A macrodosimetric and microdosimetric approach Gillmore G K, Crockett R G M, Denman A R, Flowers A, Harris R Radium dial watches, a potentially hazardous legacy? Environment International. We report here preliminary results from this ongoing investigation which suggest that radon emanation is not necessarily a straightforward function of radium content, as anticipated, but also depends on chamber temperature and humidity impacting upon watch-dependent factors such as design, construction, materials and wear-and-tear. These radon measurements are made by placing the watches in a sealed chamber in a closed loop with a Durridge RAD7. In an extension to that earlier research, the radon emanations from the watches are being investigated in order to evaluate the radon hazard and the effective radium content of the watches. Research during the latter half of 2011 has indicated that in addition to the hazard arising from the radium content of radium-dial watches, significant radon concentrations that exceed the UK Domestic and Workplace Action Levels of 200 Bq/m3 and 400 Bq/m3, respectively, can arise from watches stored in the built environment (1). Characterising Radon Emanations from Radium-Dial Watches
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |