Carbon Monoxide Trend

Carbon monoxide is a colourless, odourless gas formed when carbon burns with an insufficient supply of oxygen. The major emission source of CO in urban locations is motor vehicles. Minor sources include fireplaces, industry, aircraft and natural gas combustion.

	Carbon Monoxide Trend Carbon monoxide is a colourless, odourless gas formed when carbon burns with an insufficient supply of oxygen. The major emission source of CO in urban locations is motor vehicles. Minor sources include fireplaces, industry, aircraft and natural gas combustion.