Biomaterial Database

Inter-comparison of personal monitors for nanoparticles exposure at workplaces and in the environment. 2017

Ana Maria Todea, and Stefanie Beckmann, and Heinz Kaminski, and Delphine Bard, and Sébastien Bau, and Simon Clavaguera, and Dirk Dahmann, and Hélène Dozol, and Nico Dziurowitz, and Karine Elihn, and Martin Fierz, and Göran Lidén, and Asmus Meyer-Plath, and Christian Monz, and Volker Neumann, and Johannes Pelzer, and Barbara Katrin Simonow, and Patrick Thali, and Ilse Tuinman, and Arjan van der Vleuten, and Huub Vroomen, and Christof Asbach

Institut für Energie- und Umwelttechnik e. V. (IUTA), 47229 Duisburg, Germany. Electronic address: todea@iuta.de.

Personal monitors based on unipolar diffusion charging (miniDiSC/DiSCmini, NanoTracer, Partector) can be used to assess the individual exposure to nanoparticles in different environments. The charge acquired by the aerosol particles is nearly proportional to the particle diameter and, by coincidence, also nearly proportional to the alveolar lung-deposited surface area (LDSA), the metric reported by all three instruments. In addition, the miniDiSC/DiSCmini and the NanoTracer report particle number concentration and mean particle size. In view of their use for personal exposure studies, the comparability of these personal monitors was assessed in two measurement campaigns. Altogether 29 different polydisperse test aerosols were generated during the two campaigns, covering a large range of particle sizes, morphologies and concentrations. The data provided by the personal monitors were compared with those obtained from reference instruments: a scanning mobility particle sizer (SMPS) for LDSA and mean particle size and a ultrafine particle counter (UCPC) for number concentration. The results indicated that the LDSA concentrations and the mean particle sizes provided by all investigated instruments in this study were in the order of ±30% of the reference value obtained from the SMPS when the particle sizes of the test aerosols generated were within 20-400nm and the instruments were properly calibrated. Particle size, morphology and concentration did not have a major effect within the aforementioned limits. The comparability of the number concentrations was found to be slightly worse and in the range of ±50% of the reference value obtained from the UCPC. In addition, a minor effect of the particle morphology on the number concentration measurements was observed. The presence of particles >400nm can drastically bias the measurement results of all instruments and all metrics determined.

UI	MeSH Term	Description	Entries
D010316	Particle Size	Relating to the size of solids.	Particle Sizes,Size, Particle,Sizes, Particle
D004784	Environmental Monitoring	The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.	Monitoring, Environmental,Environmental Surveillance,Surveillance, Environmental
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000076251	Wearable Electronic Devices	Electronic implements worn on the body as an implant or as an accessory. Examples include wearable diagnostic devices, wearable ACTIVITY TRACKERS, wearable INFUSION PUMPS, wearable computing devices, SENSORY AIDS, and electronic pest repellents.	Wearable Computer,Electronic Skin,Wearable Devices,Wearable Technology,Computer, Wearable,Device, Wearable,Device, Wearable Electronic,Electronic Device, Wearable,Skin, Electronic,Technology, Wearable,Wearable Computers,Wearable Device,Wearable Electronic Device,Wearable Technologies
D000336	Aerosols	Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.	Aerosol
D000395	Air Pollutants, Occupational	Toxic air-borne matter related to work performed They are usually produced by the specific nature of the occupation.	Occupational Air Pollutants,Pollutants, Occupational Air
D016273	Occupational Exposure	The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.	Exposure, Occupational,Exposures, Occupational,Occupational Exposures
D017132	Workplace	Place or physical location of work or employment.	Job Site,Work Location,Work Place,Work-Site,Worksite,Job Sites,Location, Work,Work Locations,Work Places,Work Site,Work-Sites,Workplaces,Worksites
D053758	Nanoparticles	Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.	Nanocrystalline Materials,Nanocrystals,Material, Nanocrystalline,Materials, Nanocrystalline,Nanocrystal,Nanocrystalline Material,Nanoparticle