• ash
  • carbon monoxide
  • CH4
  • CO2
  • dust
  • gases from combustion
  • gases from organic decomposition
  • grit
  • H2S
  • HF
  • liquid droplets and acid deposition
  • noise
  • NOx (nitrogen oxides)
  • ozone
  • PAN8
  • sea-salt particles
  • smoke
  • smoke and ash
  • SO2 (sulfur oxides)
  • soot
  • tarmac and rubber particles
  • volcanic dust
  • volcanic gases and water vapor

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