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Volatile organic compounds indoors originate largely from

  • A.Human skin shedding
  • B.Paints, solvents and adhesives
  • C.Soil gas entering through the slab
  • D.Combustion of natural gas only

Answer: B

Hundreds of compounds are present at once, usually at low individual concentration, which is why the total volatile organic compound figure is often quoted. New or newly refurbished buildings show the highest levels and decay over months.

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