Vaquero, C.Wendelbo, R.Egizabal, A.Gutierrez-Cañas, C.López de Ipiña, J.2019-10-17Vaquero , C , Wendelbo , R , Egizabal , A , Gutierrez-Cañas , C & López de Ipiña , J 2019 , ' Exposure to graphene in a pilot production plant ' , Journal of Physics: Conference Series , vol. 1323 , no. 1 , 012005 , pp. 12005 . https://doi.org/10.1088/1742-6596/1323/1/0120051742-6588researchoutputwizard: 11556/823Publisher Copyright: © 2019 Published under licence by IOP Publishing Ltd.Workers exposure to graphene was measured in a pilot production plant. Reduced graphene oxide was produced through graphite oxidation and posterior thermal reduction. The monitoring was performed using two handheld on-line devices covering the particle size range from 10 nm to 10 μm (CPC3007 and OPS3330). Simultaneously, personal and area filter samples were collected for off line analysis, including gravimetric, elemental carbon analysis and SEM/EDX. Significant releases of particles were identified in two tasks, during the graphene oxide washing, and during its milling. However, the analysis of the particles size distribution and of their morphology suggested that the released particles were not the target nanomaterial but engine generated nanoparticles. The mass of elemental carbon in the collected filters was below the quantification limit and the calculated graphene mass concentrations were quite below the selected reference exposure limit. Overall, this work showed that worker exposure to graphene was low in this pilot plant, contributing to guarantee a safe process, prior to its industrialization.13024505enginfo:eu-repo/semantics/openAccessconference output10.1088/1742-6596/1323/1/012005GrapheneNanostructured materialsParticle sizePilot plantsParticle size analysisGrapheneNanostructured materialsParticle sizePilot plantsParticle size analysisGeneral Physics and AstronomyProject IDinfo:eu-repo/grantAgreement/EC/H2020/685825/EU/Functionally graded Additive Manufacturing scaffolds by hybrid manufacturing/FASTinfo:eu-repo/grantAgreement/EC/H2020/685825/EU/Functionally graded Additive Manufacturing scaffolds by hybrid manufacturing/FASTFunding InfoThis research was carried out as part of the project FAST- Functionally Graded Additive Manufacturing Scaffolds by Hybrid Manufacturing. The project FAST has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 685825.This research was carried out as part of the project FAST- Functionally Graded Additive Manufacturing Scaffolds by Hybrid Manufacturing. The project FAST has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 685825.http://www.scopus.com/inward/record.url?scp=85074917963&partnerID=8YFLogxK