Pilou, MarikaVaquero-Moralejo, CelinaJaén, MaríaLópez de Ipiña, J.M.Neofytou, PanagiotisHousiadas, ChristosLopez De Ipiña Peña, Jesús2016-07-02Pilou , M , Vaquero-Moralejo , C , Jaén , M , López de Ipiña , J M , Neofytou , P , Housiadas , C & Lopez De Ipiña Peña , J 2016 , ' Modeling of occupational exposure to accidentally released manufactured nanomaterials in a production facility and calculation of internal doses by inhalation ' , International Journal of Occupational and Environmental Health , vol. 22 , no. 3 , pp. 249-258 . https://doi.org/10.1080/10773525.2016.12265351077-3525researchoutputwizard: 11556/365Publisher Copyright: © 2016 Informa UK Limited, trading as Taylor & Francis Group.Background: Occupational exposure to manufactured nanomaterials (MNMs) and its potential health impacts are of scientific and practical interest, as previous epidemiological studies associate exposure to nanoparticles with health effects, including increased morbidity of the respiratory and the circulatory system. Objectives: To estimate the occupational exposure and effective internal doses in a real production facility of TiO2 MNMs during hypothetical scenarios of accidental release. Methods: Commercial software for geometry and mesh generation, as well as fluid flow and particle dispersion calculation, were used to estimate occupational exposure to MNMs. The results were introduced to in-house software to calculate internal doses in the human respiratory tract by inhalation. Results: Depending on the accidental scenario, different areas of the production facility were affected by the released MNMs, with a higher dose exposure among individuals closer to the particles source. Conclusions: Granted that the study of the accidental release of particles can only be performed by chance, this numerical approach provides valuable information regarding occupational exposure and contributes to better protection of personnel. The methodology can be used to identify occupational settings where the exposure to MNMs would be high during accidents, providing insight to health and safety officials.101546251enginfo:eu-repo/semantics/openAccessjournal article10.1080/10773525.2016.1226535Manufactured nanomaterialsParticles dispersionCFD modelingOccupational exposureInternal dosesAccidental releaseManufactured nanomaterialsParticles dispersionCFD modelingOccupational exposureInternal dosesAccidental releasePublic Health, Environmental and Occupational HealthProject IDinfo:eu-repo/grantAgreement/EC/FP7/280535/EU/Innovative strategies, methods and tools for occupational risks management of manufactured nanomaterials (MNMs) in the construction industry/SCAFFOLDinfo:eu-repo/grantAgreement/EC/FP7/280535/EU/Innovative strategies, methods and tools for occupational risks management of manufactured nanomaterials (MNMs) in the construction industry/SCAFFOLDFunding InfoThis work was supported by project SCAFFOLD [project_x000D_ number NMP4-SL-2012-280535] of the European_x000D_ Commission (FP7).This work was supported by project SCAFFOLD [project_x000D_ number NMP4-SL-2012-280535] of the European_x000D_ Commission (FP7).http://www.scopus.com/inward/record.url?scp=84988699925&partnerID=8YFLogxK