THC is a group of compounds that are mostly colourless, flammable, non-toxic gases with very characteristic odours associated to the various compounds. Examples include: methane, ethane, propane and butane.
THC is a broad term used to describe compounds which are essentially contain Hydrogen and Carbon atoms. They often occur in petroleum, natural gas and coal. They are generated through the use of these fuels, and specifically the combustion and storage of these compounds. Anthropogenic sources: vehicular emissions, fuel storage tanks, petroleum and chemical industries, dry cleaning, fireplaces, natural gas combustion, aircrafts. Natural Sources: vegetation decomposition.
Provincial Guidelines: