Determinants of workplace exposure and release of ultrafine particles during atmospheric plasma spraying in the ceramic industry
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Altres documents de l'autoria: Viana, Marcelo; Fonseca, A.S.; Querol, Xavier; López Lilao, Ana; Carpio Cobo, Pablo; Salmatonidis, Apostolos; Monfort, Eliseo
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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INVESTIGACIONMetadades
Títol
Determinants of workplace exposure and release of ultrafine particles during atmospheric plasma spraying in the ceramic industryAutoria
Data de publicació
2017Editor
ElsevierISSN
0048-9697; 1879-1026Cita bibliogràfica
Viana, M., Fonseca, A. S., Querol, X., López-Lilao, A., Carpio, P., Salmatonidis, A., & Monfort, E. (2017). Workplace exposure and release of ultrafine particles during atmospheric plasma spraying in the ceramic industry. Science of The Total Environment, 599, 2065-2073.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0048969717312329?via%3DihubVersió
info:eu-repo/semantics/submittedVersionParaules clau / Matèries
Resum
Atmospheric plasma spraying (APS) is a frequently used technique to produce
enhanced-property coatings for different materials in the ceramic industry. This work
aimed to characterise and quantify the impact of APS ... [+]
Atmospheric plasma spraying (APS) is a frequently used technique to produce
enhanced-property coatings for different materials in the ceramic industry. This work
aimed to characterise and quantify the impact of APS on workplace exposure to
airborne particles, with a focus on ultrafine particles (UFPs, <100 nm) and
nanoparticles (<50 nm). Particle number, mass concentrations, alveolar lung deposited
surface area concentration, and size distributions, in the range 10 nm – 20 μm were
simultaneously monitored at the emission source, in the worker breathing zone, and in
outdoor air. Different input materials (known as feedstock) were tested: (a) micro-sized
powders, and (b) suspensions containing submicron- or nano-sized particles. Results
evidenced significant UFP emissions (up to 3.3x106/cm3) inside the projection
chamber, which impacted exposure in the breathing zone outside the projection
chamber (up to 8.3x105/cm3). Environmental release of UFPs was also detected and
quantified (3.9x105/cm330 ). Engineered nanoparticle (ENP) release to workplace air was
also evidenced by TEM microscopy. UFP emissions were detected during the
application of both micro-sized powder and suspensions containing submicron- or
nano-sized particles, thus suggesting that emissions were process- (and not material-)
dependent. An effective risk prevention protocol was implemented, which resulted in a
reduction of worker UFP exposure in the breathing zone. These findings evidence the
potential risk of occupational exposure to UFPs during atmospheric plasma spraying,
and raise the need for further research on UFP formation mechanisms in high-energy
industrial processes. [-]
Publicat a
Science of The Total Environment, 2017, vol. 599, p. 2065-2073.Proyecto de investigación
This project was supported by the Spanish MINECO through project PCIN-2015-173- C02-01, under the frame of SIINN, the ERA-NET for a Safe Implementation of Innovative Nanoscience and Nanotechnology, by SIINN-ERANET project CERASAFE (id.:16). Support is also acknowledged to FP7 Marie Curie ITN HEXACOMM (Nr. 315760), Generalitat de Catalunya 2014 SGR33, the Department of Environmental Quality of the Generalitat de Catalunya, and the Spanish Ministry of the Environment (13CAES006).Drets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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