Controlling Ozone

People can't control the weather or topography, but they can control the emissions from transportation and industry. One way to decrease ozone formation is to decrease emissions of NOx and VOCs from vehicles. Reducing these pollutants is one of the chief benefits of alternative fuels. Burning simple hydrocarbons such as propane and methane, using other alternative power sources, and operating vehicles properly can cut reactive exhaust emissions dramatically. Emissions-trapping refueling systems and low-volatility fuels also cut down on evaporative emissions.

On ozone action days, clean-air organizations often suggest ways people can limit ozone forming emissions. These techniques include:

• refraining from using volatile materials such as lighter fluid, varnishes, degreasers, and oil-based paints;
• limiting use of automobiles, especially in the morning;
• combining trips to minimize cold starts, when an engine emits more pollutants;
• putting off use of yard equipment such as gasoline lawn mowers and chain saws; and
• putting off refueling, or at least waiting until evening.