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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
EditorsJames Matthews
Place of PublicationBRISTOL
Publisher or commissioning bodyIOP Publishing
Pages012044
Number of pages4
Volume646
DateE-pub ahead of print - 26 Oct 2015
DatePublished (current) - 26 Oct 2015
EventElectrostatics 2015 - Southampton, United Kingdom
Duration: 12 Apr 201516 Apr 2015

Publication series

NameJournal of Physics Conference Series
PublisherIOP PUBLISHING LTD
Number1
Volume646

Conference

ConferenceElectrostatics 2015
CountryUnited Kingdom
CitySouthampton
Period12/04/1516/04/15

Abstract

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.

Event

Electrostatics 2015

Duration12 Apr 201516 Apr 2015
CitySouthampton
CountryUnited Kingdom
Degree of recognitionInternational event

Event: Conference

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