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Artículo

Analysis and risk estimates to workers of Brazilian granitic industries and sandblasters exposed to respirable crystalline silica and natural radionuclides

Estellita, L.; Santos, A. M. A.; Anjos, R. M.; Yoshimura, E. M.; Velasco, Ricardo HugoIcon ; Da Silva, A. A. R.; Aguiar, J. G.
Fecha de publicación: 02/2010
Editorial: Elsevier
Revista: Radiation Measurements
ISSN: 1350-4487
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Físicas

Resumen

Occupational exposure to respirable crystalline silica and to radiation emitted by natural radionuclides present both in rocks and sands was studied in the Brazilian extractive process and granite product manufacture. Respirable airborne dust samples were collected in working environments, where workers perform different tasks with distinct commercial granites types, and also in places where sandblasters work with sands from different origins. The free crystalline silica contents were determined using X-ray diffraction of the respirable particulate fraction of each sample. Dust samples from granite cutting and sandblasting ambient had the natural radionuclides concentrations measured by gamma spectrometry. Dust concentrations in the workplaces were quite variable, reaching values up to 10 times higher than the respirable particle mass threshold limit value (TLV) set by the American Conference for Governmental Industrial Hygienists of 3 mg m−3. Also the free crystalline silica concentrations were high, reaching values up to 48 times the TLV of 0.025 mg m−3. Additionally, our results suggest that the risk of radiation-induced cancer in the granite or marble industries is negligible. However, the combined exposure to dust, gamma radiation, and radon daughter products could result in the enhancement of lung cancer risks associated to sandblasting activities.
Palabras clave: Respirable Dust , Silica , Natural Radionuclides , Rock Driller , Finisher , Sandblaster
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/15432
DOI: http://dx.doi.org/10.1016/j.radmeas.2010.02.009
URL: http://www.sciencedirect.com/science/article/pii/S1350448710000661
Colecciones
Articulos(IMASL)
Articulos de INST. DE MATEMATICA APLICADA DE SAN LUIS
Citación
Estellita, L.; Santos, A. M. A.; Anjos, R. M.; Yoshimura, E. M.; Velasco, Ricardo Hugo; et al.; Analysis and risk estimates to workers of Brazilian granitic industries and sandblasters exposed to respirable crystalline silica and natural radionuclides; Elsevier; Radiation Measurements; 45; 2; 2-2010; 196-203
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