Atmospheric modelling of grass pollen rupturing mechanisms for thunderstorm asthma prediction
Kathryn M Emmerson, Jeremy D Silver, Marcus Thatcher, Alan Wain, Penelope J Jones, Andrew Dowdy, Edward J Newbigin, Beau W Picking, Jason Choi, Elizabeth Ebert, Tony Bannister
PLOS ONE | PUBLIC LIBRARY SCIENCE | Published : 2021
The world's most severe thunderstorm asthma event occurred in Melbourne, Australia on 21 November 2016, coinciding with the peak of the grass pollen season. The aetiological role of thunderstorms in these events is thought to cause pollen to rupture in high humidity conditions, releasing large numbers of sub-pollen particles (SPPs) with sizes very easily inhaled deep into the lungs. The humidity hypothesis was implemented into a three-dimensional atmospheric model and driven by inputs from three meteorological models. However, the mechanism could not explain how the Melbourne event occurred as relative humidity was very low throughout the atmosphere, and most available grass pollen remained ..View full abstract
Awarded by Victorian Department of Health and Human Services
This research has been supported by the Victorian Department of Health and Human Services (contract no. C5949). https://www.dhhs.vic.gov.au/The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.