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- W4252891506 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> This study presents the first reference calibrations of three commercially available bioaerosol detectors. The Droplet Measurement Technologies WIBS-NEO (new version of the wideband integrated bioaerosol spectrometer), Plair Rapid-E, and Swisens Poleno were compared with a primary standard for particle number concentrations at the Federal Institute for Metrology (METAS). Polystyrene (PSL) spheres were used to assess absolute particle counts for diameters from 0.5 to 10â<span class=inline-formula>µm</span>. For the three devices, counting efficiency was found to be strongly dependent on particle size. The results confirm the expected detection range for which the instruments were designed. While the WIBS-NEO achieves its highest efficiency with smaller particles, e.g. 90â% for 0.9â<span class=inline-formula>µm</span> diameter, the Plair Rapid-E performs best for larger particles, with an efficiency of 58â% for particles with a diameter of 10â<span class=inline-formula>µm</span>. The Swisens Poleno is also designed for larger particles but operates well from 2â<span class=inline-formula>µm</span>. However, the exact counting efficiency of the Poleno could not be evaluated as the cut-off diameter range of the integrated concentrator unit was not completely covered. In further experiments, three different types of fluorescent particles were tested to investigate the fluorescent detection capabilities of the Plair Rapid-E and the Swisens Poleno. Both instruments showed good agreement with the reference data. While the challenge to produce known concentrations of larger particles above 10â<span class=inline-formula>µm</span> or even fresh pollen particles remains, the approach presented in this paper provides a potential standardised validation method that can be used to assess counting efficiency and fluorescence measurements of automatic bioaerosol monitoring devices." @default.
- W4252891506 created "2022-05-12" @default.
- W4252891506 creator A5082950483 @default.
- W4252891506 date "2021-08-16" @default.
- W4252891506 modified "2023-09-28" @default.
- W4252891506 title "Reply on RC2" @default.
- W4252891506 doi "https://doi.org/10.5194/amt-2021-136-ac2" @default.
- W4252891506 hasPublicationYear "2021" @default.
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