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Measuring and controlling emissions from polymer filament desktop 3D printers
Affordable desktop 3D printers are being widely used in businesses, schools and colleges. Some of these printers use filaments to deposit polymer through a heated nozzle to build three dimensional objects. This type of desktop printer is generally unenclosed and some published studies have raised concerns that they may release potentially harmful fumes and particles. The scientific evidence base on exposures and potential health endpoints is being developed internationally. This report describes initial research in a laboratory setting to a) measure emissions of particulates and volatile organic...
Mise au point sur les risques toxiques lors de l’utilisation professionnelle des photocopieurs
Les photocopieurs sont considérés comme des outils essentiels dans les entreprises. De plus en plus de salariés se plaignent auprès de leur service de santé au travail de symptômes qu'ils attribuent à leur exposition au photocopieur. Il s'agit donc de connaître les risques liés à cette exposition. Le fonctionnement d'un photocopieur est basé sur l'électrophotographie, c'est-à-dire le transfert électrostatique de la poudre de toner vers une surface photoconductrice chargée électriquement...
Exposure to airborne particles and volatile organic compounds from polyurethane molding, spray painting, lacquering, and gluing in a workshop
Due to the health risk related to occupational air pollution exposure, we assessed concentrations and identified sources of particles and volatile organic compounds (VOCs) in a handcraft workshop producing fishing lures. The work processes in the site included polyurethane molding, spray painting, lacquering, and gluing. We measured total VOC (TVOC) concentrations and particle size distributions at three locations representing the various phases of the manufacturing and assembly process. The mean working-hour TVOC concentrations in three locations studied were 41, 37, and 24 ppm according to photo...

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