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

Autor: Simon Clavaguera, Johannes Pelzer, Karine Elihn, Sébastien Bau, Nico Dziurowitz, Asmus Meyer-Plath, Christian Monz, Patrick Thali, Dirk Dahmann, Stefanie Beckmann, Martin Fierz, Hélène Dozol, Volker Neumann, Heinz Kaminski, Christof Asbach, Arjan van der Vleuten, Delphine Bard, Göran Lidén, Ilse Tuinman, Barbara Katrin Simonow, Ana Maria Todea, Huub Vroomen
Rok vydání: 2017
Předmět:
Environmental Engineering
Materials science
010504 meteorology & atmospheric sciences
Particle number
Analytical chemistry
Urbanisation
Air Pollutants
Occupational
010501 environmental sciences
01 natural sciences
Number concentration
Wearable Electronic Devices
Scanning mobility particle sizer
Personal monitors
Occupational Exposure
Comparability
Ultrafine particle
Humans
Environmental Chemistry
Particle Size
Diffusion (business)
2015 Observation
Weapon & Protection Systems
Workplace
Waste Management and Disposal
0105 earth and related environmental sciences
Aerosols
TS - Technical Sciences
Range (particle radiation)
CBRN - CBRN Protection
Mean particle size
Pollution
Aerosol
Alveolar lung deposited surface area concentration
Nanoparticles
Particle
Ergonomics
Particle size
Environment & Sustainability
Environmental Monitoring
Zdroj: Science of the Total Environment, 605-606, 929-945
ISSN: 0048-9697
Popis: 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 20–400 nm 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 > 400 nm can drastically bias the measurement results of all instruments and all metrics determined. © 2016 Elsevier B.V.
Databáze: OpenAIRE
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