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Quantifying emission factors and setting conditions of use according to ECHA chapter R.14 for a spray process designed for nanocoatings—A case study

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dc.contributor.author Koivisto, Antti Joonas
dc.contributor.author Del Secco, Benedetta
dc.contributor.author Trabucco, Sara
dc.contributor.author Nicosia, Alessia
dc.contributor.author Ravegnani, Fabrizio
dc.contributor.author Altin, Marko
dc.contributor.author Cabellos, Joan
dc.contributor.author Furxhi, Irini
dc.contributor.author Blosi, Magda
dc.contributor.author Costa, Anna
dc.contributor.author de Ipiña, Jesús Lopez
dc.contributor.author Belosi, Franco
dc.date.accessioned 2022-02-16T09:35:42Z
dc.date.available 2022-02-16T09:35:42Z
dc.date.issued 2022
dc.identifier.uri http://hdl.handle.net/10344/11038
dc.description peer-reviewed en_US
dc.description.abstract Spray coatings’ emissions impact to the environmental and occupational exposure were studied in a pilot-plant. Concentrations were measured inside the spray chamber and at the work room in Near-Field (NF) and Far-Field (FF) and mass flows were analyzed using a mechanistic model. The coating was performed in a ventilated chamber by spraying titanium dioxide doped with nitrogen (TiO2N) and silver capped by hydroxyethylcellulose (Ag-HEC) nanoparticles (NPs). Process emission rates to workplace, air, and outdoor air were characterized according to process parameters, which were used to assess emission factors. Full-scale production exposure potential was estimated under reasonable worst-case (RWC) conditions. The measured TiO2-N and Ag-HEC concentrations were 40.9 TiO2-μg/m3 and 0.4 Ag-μg/m3 at NF (total fraction). Under simulated RWC conditions with precautionary emission rate estimates, the worker’s 95th percentile 8-h exposure was ≤171 TiO2 and ≤1.9 Ag-μg/m3 (total fraction). Environmental emissions via local ventilation (LEV) exhaust were ca. 35 and 140 mg-NP/g-NP, for TiO2-N and Ag-HEC, respectively. Under current situation, the exposure was adequately controlled. However, under full scale production with continuous process workers exposure should be evaluated with personal sampling if recommended occupational exposure levels for nanosized TiO2 and Ag are followed for risk management. en_US
dc.language.iso eng en_US
dc.publisher MDPI en_US
dc.relation.ispartofseries Nanomaterials;12, 596
dc.subject spray coating en_US
dc.subject emission en_US
dc.subject NF/FF model en_US
dc.title Quantifying emission factors and setting conditions of use according to ECHA chapter R.14 for a spray process designed for nanocoatings—A case study en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.3390/nano12040596
dc.contributor.sponsor Horizon 2020 en_US
dc.contributor.sponsor ERC
dc.relation.projectid 862444 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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