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Comparisons of ground level measurements of ion concentration and potential gradient upwind and downwind of HV power lines in corona

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)407-417
Number of pages11
JournalJournal of Electrostatics
Issue number4
DatePublished - Aug 2012


Simultaneous ion concentration and potential gradient measurements were made at AC high voltage power lines using ion mobility spectrometers and electric field mills. A significant (p <0.01) change in central tendency and variability of ion concentration and potential gradient can occur downwind of power lines. In 3 out of 8 downwind measurements, there was a discrepancy of sign between the overall mean of these quantities, attributed to ion dispersion and ion-aerosol attachment. While ion concentrations give a greater indication of personal exposure, potential gradient measurements are more appropriate for assessment of the behaviour of a power line. (c) 2012 Elsevier B.V. All rights reserved.

    Research areas

  • Space charge, Atmospheric ions, Atmospheric potential gradient, Power lines, Corona ions


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