Vehicle emissions, for example, are a major cause of air pollution in most cities, including Winnipeg. By using cleaner fuels, properly maintaining our vehicles and choosing to drive our vehicles less often, we will reduce air pollution and help preserve one of Winnipeg's most valuable assets - our fresh, clean air. For further information about air quality and the Air Quality Index system in Winnipeg, please contact Manitoba Conservation at 945-7044. 1 hour and 8-hour running average Carbon monoxide is a colourless, odourless, tasteless gas slightly heavier than air. CO replaces oxygen in the red blood cells and this lack of oxygen reduces the ability of the body to function.
First symptoms are impaired perception and reflexes and a reduced tolerance for physical activity.
Other sources include fossil fuel combustion for building, heating and commercial and industrial operation. The particles may remain suspended in the air in the form of dust, smoke, fumes, aerosols, soot, mist, etc. Many common industrial processes including combustion, incineration, and metal smelting are sources of these fine particles. Another source is motor vehicle exhaust. Natural sources include windblown dust, forest fires, ocean spray, and volcanic activity.