A modelling approach for quantifying volcanic sulphur dioxide concentrations at flight altitudes and the potential hazard to aircraft occupants

HIGHLIGHTS

• What: The authors have assessed concentration levels of volcanic S­ O2 in the atmosphere following eight historic eruptions and use four-dimensional dispersion model simulation data to calculate when and where the World Health Organisation (WHO) health protection guideline for ­SO2 of 500 μgm-3 over 10 minutes is exceeded. The authors focus on the hazard posed to human health: ­SO2 is a fast-acting respiratory irritant when inhaled and at high concentrations may cause breathing difficulties (Orellano, Reynoso and amp; Quaranta 2021). The aim of this paper is to illustrate the implications of applying the WHO . . .
  

   

  

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