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Radiological and chemical risks by waste scales generated in the titanium dioxide industry.
Gazquez, M J; Mantero, J; Mosqueda, F; Vioque, I; García-Tenorio, R; Bolívar, J P.
Afiliación
  • Gazquez MJ; Department of Applied Physics, University of Cadiz, University Marine Research Institute (INMAR) Cadiz, 11510, Spain.
  • Mantero J; Department of Applied Physics II, University of Seville, Spain.
  • Mosqueda F; Department of Integrated Sciences, Center for Natural Resources, Health and Environment (RENSMA), University of Huelva, 21071, Huelva, Spain.
  • Vioque I; Department of Applied Physics II, University of Seville, Spain.
  • García-Tenorio R; Department of Applied Physics II, University of Seville, Spain; Centro Nacional de Aceleradores, CNA, Universidad Sevilla- Junta Andalucía-CSIC, Sevilla, Spain.
  • Bolívar JP; Department of Integrated Sciences, Center for Natural Resources, Health and Environment (RENSMA), University of Huelva, 21071, Huelva, Spain. Electronic address: bolivar@uhu.es.
Chemosphere ; 274: 129732, 2021 Jul.
Article en En | MEDLINE | ID: mdl-33529953
Along the industrial process devoted to the production of titanium dioxide pigments by using ilmenite as main raw material, small residues amounts are generated, remaining clearly enriched in natural radionuclides and chemical pollutants. Between them, we can remark the scales enriched in both radium isotopes and lead, which are formed in the internal walls of pipes and some equipment. These scales are radiological anomalies that demand its mineralogical, elemental and radiometric characterization as a basis for a detailed radiological and toxicological assessment from the occupational and public point of view. In this work, several scales collected in a TiO2 pigment production plant in South of Spain have been mineralogically characterized by XRD, while information about their elemental composition and morphology have been obtained by applying the XRF and SEM techniques. In addition, radiometric determinations have been performed by gamma-ray and alpha-particle spectrometry. The performed study indicates that the radiological doses received due to the scales by the workers performing its conventional activities are clearly lower than 1 mSv/y. Special dosimetric and chemical controls could be needed for the workers in charge of the maintenance labours (which include the removal of the scales) if these workers belong to an external company devoted to perform maintenance operations in several NORM industries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Radioisótopos / Titanio Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Humans País/Región como asunto: Europa Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Radioisótopos / Titanio Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Humans País/Región como asunto: Europa Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido