Particle emission characteristics of office printers.

In modern society, printers are widely used in the office environment. This study investigated particle number and PM2.5 emissions from printers using the TSI SMPS, TSI CPC 3022, and 3025A TSI P-Trak and DustTrak. The monitoring of particle characteristics in a large open-plan office showed that particles generated by printers can significantly (p = 0.01) affect the submicrometer particle number concentration levels in the office. An investigation of the submicrometer particle emissions produced by each of the 62 printers used in the office building was also conducted and based on the particle concentrations in the immediate vicinity of the printers, after a short printing job, the printers were divided into four classes: non-emitters, and low, medium, and high emitters. It was found that approximately 60% of the investigated printers did not emit submicrometer particles and of the 40% that did emit particles, 27% were high particle emitters. Particle emission characteristics from three different laser printers were also studied in an experimental chamber, which showed that particle emission rates are printer-type specific and are affected by toner coverage and cartridge age. While a more comprehensive study is still required, to provide a better database of printer emission rates, as well as their chemical characteristics, the results from this study imply that submicrometer particle concentration levels in an office can be reduced by a proper choice of the printers.

[1]  Shuji Fujii,et al.  Indoor air quality for chemical and ultrafine particle contaminants from printers , 2007 .

[2]  Lidia Morawska,et al.  Particle deposition rates in residential houses , 2005 .

[3]  U. Matson,et al.  Indoor and outdoor concentrations of ultrafine particles in some Scandinavian rural and urban areas. , 2005, The Science of the total environment.

[4]  J. Sundell,et al.  On the history of indoor air quality and health. , 2004, Indoor air.

[5]  L. Morawska,et al.  Contribution from indoor sources to particle number and mass concentrations in residential houses , 2004 .

[6]  Cynthia Howard-Reed,et al.  Source strengths of ultrafine and fine particles due to cooking with a gas stove. , 2004, Environmental science & technology.

[7]  Andrea R Ferro,et al.  Source strengths for indoor human activities that resuspend particulate matter. , 2004, Environmental science & technology.

[8]  Kerrie Mengersen,et al.  Characteristics of particle number and mass concentrations in residential houses in Brisbane, Australia , 2003 .

[9]  H. K. Fai,et al.  Characterization of VOCs, ozone, and PM10 emissions from office equipment in an environmental chamber , 2001 .

[10]  M Luoma,et al.  Characterization of particulate emissions from occupant activities in offices. , 2001, Indoor air.

[11]  P. Wolkoff,et al.  Photocopiers and indoor air pollution , 1999 .

[12]  D. Norbäck,et al.  Subjective Indoor Air Quality in Geriatric Hospitals , 1999, Indoor and Built Environment.

[13]  J Sundell,et al.  The Sick Building Syndrome (SBS) in office workers. A case-referent study of personal, psychosocial and building-related risk indicators. , 1994, International journal of epidemiology.

[14]  Per Axel Clausen,et al.  Comparison Of Volatile Organic Compounds From Processed Paper And Toners From Office Copiers And Printers: Methods, Emission Rates, And Modeled Concentrations , 1993, Indoor Air.

[15]  K. Kreiss,et al.  The epidemiology of building-related complaints and illness. , 1989, Occupational medicine.

[16]  Michael Wensing,et al.  Characterization of Ultra-fine Particle Emissions from a Laser Printer , 2006 .

[17]  Michael Wensing,et al.  Particle Measurement of Hardcopy Devices , 2006 .

[18]  M. Kulmala,et al.  Particle size characterization and the indoor-to-outdoor relationship of atmospheric aerosols in Helsinki. , 2004, Scandinavian journal of work, environment & health.

[19]  H. Fischer,et al.  Benzolemissionen aus Laserdruckern und Kopierern , 2003 .

[20]  T. Smola,et al.  Gesundheitsgefahren durch Laserdrucker? Ergebnisse des VBG-BIA-Projekts Schwarz-Weiss-Laserdrucker , 2002 .

[21]  Ari Asmi,et al.  Indoor air measurement campaign in Helsinki, Finland 1999 – the effect of outdoor air pollution on indoor air , 2001 .