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Characterization of the atmospheric electrical environment near a corona ion-emitting source

J-Fatokun, Folsade, Jayaratne, Rohan, Morawska, Lidia, Rachman, Rihandanu, Birtwhistle, David, & Mengersen, Kerrie L. (2008) Characterization of the atmospheric electrical environment near a corona ion-emitting source. Atmospheric Environment, 42(7), pp. 1607-1616.

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Abstract

Presence of high concentrations of corona ions in any air environment cause changes in the earth’s natural dc e-field; while their interaction with airborne aerosols produce charged particles. The charged particles and ions are dispersed by wind, and depending on the prevailing meteorology, their presence can be observed several hundreds of meters from the ion source. This paper presents a study characterizing the electrical environment of a strong substantially-constant source of corona ions (a high voltage electricity substation).
Results of the study showed that corona ion and particle charge concentrations as well as their associated effect on the vertical dc e-field perturbations decreased with distance from the emitting source. Mean particle charge concentration in the air environment of the ion emitting source (-1750 ± 745 ions cm-3) was three times higher than that of an urban outdoor air and seventeen times that of a mechanically ventilated room. Statistical investigation of possible associations between parameters showed strong associations (R2 = 74%, P<0.05) between particle charge and ion concentration; and 54% correlation between particle charge and magnitude of the vertical dc e-field (mean value of -285 ± 51 V m-1). Although a source of ambient electrical charge, the electricity substation was not a significant generator of aerosol particles within the size range (0.02 to 1 μm) examined in this study.

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4 citations in Web of Science®

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ID Code: 12521
Item Type: Journal Article
Keywords: Ambient aerosol, charged particle, corona discharge, high voltage, transmission substation
DOI: 10.1016/j.atmosenv.2007.10.090
ISSN: 1352-2310
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CLASSICAL PHYSICS (020300) > Electrostatics and Electrodynamics (020302)
Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Physical Sciences not elsewhere classified (029999)
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 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 19 Feb 2008
Last Modified: 29 Feb 2012 23:51

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