131529 20240212142201.0 doi 10.1016/j.scitotenv.2017.12.125 sideral 105215 ART-2018-105215 eng Clemente, A. (orcid)0000-0002-8787-117X A versatile generator of nanoparticle aerosols. A novel tool in environmental and occupational exposure assessment 2018 The increasing presence of nanotechnology on the market entails a growing probability of finding ENMs in the environment. Nanoparticles aerosols are a yet unknown risk for human and environmental exposure that may normally occur at any point during the nanomaterial lifecycle. There is a research gap in standardized methods to assess the exposure to airborne nanoparticles in different environments. The controllable generation of nano particle aerosols has long been a challenging objective for researchers and industries dealing with airborne nano particles. In this work, a versatile system to generate nanoparticulate aerosols has been designed. The system allows the production of both i) instantaneous nanoparticle clouds and ii) continuous nanoparticle streams with quasi-stable values of particle concentration and size distribution. This novel device uses a compressed air pressure pulse to disperse the target material into either the testing environment (instantaneous cloud formation) or a secondary chamber, from which a continuous aerosol stream can be drawn, with a tunable nanoparticle concentration. The system is robust, highly versatile and easy to operate, enabling reproducible generation of aerosols from a variety of sources. The system has been verified with four dry nanomaterials: TiO2, ZnO, CuO and CNT bundles. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/EC/FP7/263147/EU/Development of reference methods for hazard identification, risk assessment and LCA of engineered nanomaterials/NANOVALID info:eu-repo/grantAgreement/ES/MINECO/JCI-2012-13421 info:eu-repo/grantAgreement/ES/MINECO/RYC-2011-07641 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 5.589 2018 ENVIRONMENTAL SCIENCES 27 / 250 = 0.108 2018 Q1 T1 1.536 2018 Environmental Chemistry 2018 Q1 Waste Management and Disposal 2018 Q1 Pollution 2018 Q1 Environmental Engineering 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Lobera, M.P. Universidad de Zaragoza (orcid)0000-0002-2436-1041 Balas, F. Universidad de Zaragoza (orcid)0000-0001-5512-0075 Santamaria, J. Universidad de Zaragoza (orcid)0000-0002-8701-9745 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 625 (2018), 978-986 Sci. total environ. SCIENCE OF THE TOTAL ENVIRONMENT 0048-9697 3848721 http://zaguan.unizar.es/record/131529/files/texto_completo.pdf Postprint 1333903 http://zaguan.unizar.es/record/131529/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:131529 articulos driver 2024-02-12-13:53:52 ARTICLE