What air pollutant is tasteless and odorless?

Answer:
Many air pollutants are tasteless and odorless:
  • carbon dioxide
  • carbon monoxide
  • ethylene
  • methane
  • ethane
  • butane
  • propane
  • CFC
  • HCFC
  • mercury vapour
  • formaldehyde
  • asbestos fiber
  • pollen
  • pet dander
  • dust mite feces
  • mould
  • radon
First answer by Woodwose. Last edit by Woodwose. Contributor trust: 789 [recommend contributor recommended]. Question popularity: 1 [recommend question].