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Evaluation of Ultrafine Particle Emissions from Laser Printers Using Emission Test Chambers

Schripp, Tobias, Wensing, Michael, Uhde, Erik, Salthammer, Tunga, He, Congrong, & Morawska, Lidia (2008) Evaluation of Ultrafine Particle Emissions from Laser Printers Using Emission Test Chambers. Environmental Science and Technology, 42(12), pp. 4338-4343.

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Abstract

It has now been recognized that some hardcopy devices emit ultrafine particles (dp < 100 nm) during their operation. As a consequence, the time-dependent characterization of particle release from laser printers is of high interest, in order to evaluate the exposure of office workers to such emissions. The emission profiles of different printers can be compared in test chambers using a standardized test protocol and measuring devices with high time resolution. The extraction of meaningful and comparable data from the obtained data set is a complex procedure, due to the different emission behavior patterns of the printers. The calculation of the unit specific emission rate (SERu) is of limited use because the emission profiles during the printing process ranged between a short-term bursts and constant particle release. Therefore, other parameters such as the particle loss- rate coefficient, β, which provides information about the testing conditions, and the area below the time vs. concentration curve, F, which characterizes the particle release, allow for a com¬parison of the different printer tests. Variations in the emission behavior could not be associated with specific manufacturers or product lines. In addition, when performing several print jobs on the same device, with only short pauses between jobs, the emission rate was reduced in some cases. This further complicates the ability to determine the influence of printer construction and consumables, such as toner and paper, on the concentration of particles emitted.

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ID Code: 15396
Item Type: Journal Article
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
Keywords: hardcopy device, emission rate, emission profile, deconvolution, SMPS, FMPS
DOI: 10.1021/es702426m
ISSN: 0013-936X
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2008 American Chemical Society
Deposited On: 03 Nov 2008
Last Modified: 29 Feb 2012 23:51

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