With the days getting longer, many homeowners thoughts turn to the work that waits in their yards. Many people associate air pollution with cars, airplanes, energy-producing facilities, and other large fuel consumers. The small engines used in lawn mowers, hedge trimmers, chain saws, and leaf blowers, however, represent a significant source of air pollutants.

Indeed, most small engines emit high levels of carbon monoxide (CO), a colorless, odorless, poisonous gas. In addition to CO, small engines emit ozone-forming hydrocarbons and nitrogen oxides. Ground-level ozone impairs lung function and contributes to smog formation. According to the Government of Canada, a gasoline-powered lawn mower emits about 48 kilograms of greenhouse gases in one season.

There are ways to help clean the air while maintaining your yard. Here are a few ideas to get you started.

Avoid Spills and Overfilling

· Spilling gas and overfilling the tank allow for gas to evaporate

· With evaporation, hydrocarbons are released into the atmosphere

Maintain Equipment

· Change oil and clean or replace air filters regularly

· Use the proper fuel/oil mixture in two-stroke equipment

· Keep blades sharp to improve fuel efficiency

Use Manual Tools:

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