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Aerosols generated by hardcopy devices and other electrical appliances

By T. Salthammer, T. Schripp, E. Uhde and M. Wensing


In recent years the pollution of indoor air with ultrafine particles has been an object of intensive research. Several studies have concurred in demonstrating that outdoor air makes only a limited contribution to polluting indoor air with ultrafine particles, provided significant sources in the immediate neighborhood are absent. Nowadays, electrical devices operated in homes and offices are identified as particle emission sources. A comparison of the emission rates can be made by calculating the total number of particles released with respect to the operating time. The identified particles are condensed semi-volatile organic compounds with a low percentage of non-volatile inorganic components. To characterize the indoor exposure to airborne particles, an algorithm has been developed which permits a realistic calculation of the particle intake and deposition in the human respiratory tract from measured size and time resolved particle number concentrations following the m odel of the International Commission on Radiological Protection

Topics: electrical appliances, chamber testing, ultrafine particle, FMPS, exposure, ICRP-model
Year: 2012
DOI identifier: 10.1016/j.envpol.2012.01.028
OAI identifier:
Provided by: Fraunhofer-ePrints
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