Re-creation of aerosol charge state found near HV power lines using a high voltage corona charger

James Matthews, Matthew Wright, Martyn Biddiscombe, Richard Underwood, Omar Usmani, Dudley Shallcross, Denis Henshaw

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)


Corona ionisation from AC HV power lines (HVPL) can release ions into the environment, which have the potential to electrically charge pollutant aerosol in the atmosphere. It has been hypothesised that these charged particles have an enhanced probability of being deposited in human airways upon inhalation due to electrostatic attraction by image charge within the lung, with implications for human health. Carbonaceous aerosol particles from a Technegas generator were artificially charge-enhanced using a corona charger. Once generated, particles were passed through the charger, which was either on or off, and stored in a 15 litre conducting bag for ~20 minutes to observe size and charge distribution changes over time. Charge states were estimated using two Sequential Mobility Particle Sizers measuring the size and mobility distributions. Charge-neutral particles were measured 7 times and positive particles 9 times, the average charge-neutral value of x was 1.00 (sd = 0.06) while the average positive value was 4.60 (0.72). The system will be used to generate positive or charge neutral particles for delivery to human volunteers in an inhalation study to assess the impact of charge on ultrafine (size < 100 nm) particle deposition.
Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
EditorsJames Matthews
Place of PublicationBRISTOL
PublisherIOP Publishing
Number of pages4
Publication statusPublished - 26 Oct 2015
EventElectrostatics 2015 - Southampton, United Kingdom
Duration: 12 Apr 201516 Apr 2015

Publication series

NameJournal of Physics Conference Series


ConferenceElectrostatics 2015
Country/TerritoryUnited Kingdom


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