According to the U.S. EPA, the personal automobile is the single largest polluter. Motor vehicles are responsible for about half of the toxic air pollutant emissions in the United States.

But what about when our cars are idling?

When our vehicles idle the combustion of fuel in our engines is incomplete. Incomplete combustion causes our vehicles to create more tail-pipe pollution than when our vehicles are traveling at normal speeds. Believe it or not, idling for just 20 minutes generates the same amount of hazardous emissions as driving nearly 320 miles!

It is safe to say vehicle emissions are unsafe and that unnecessary emissions are even more of a concern around schools. A Respiratory Health Specialist from Edward Hospital (Naperville, IL) spoke on the topic of vehicular emissions and this is a summary of what she had to say:
• Consistent exposure of vehicle emissions can cause a decrease in lung function, most commonly seen in elderly adults and children.
• As children grow, their lungs and lung function grow along with them and substances in the air they breathe can decrease the potential their lungs may achieve.
• Pound for pound of body weight, children breathe 50% more air than adults (e.g. breath at a faster rate)
• Children’s breathing zones are lower to the ground where exhaust tends to accumulate.

Again–because emissions are heavier than air and have the tendency to spill out onto the ground around our cars. Children’s breathing zones are not only closer to the ground than adults, but some schools’ “fresh” air intake vents are both low to the ground and in close proximity to where buses and vehicles line up during the drop-off and pickup procedure. In the cold winter months the heating units within each classroom control how much outside air is brought into the classroom. Illinois state law requires these units to pull in at least 10% of outside air at all times. Thus, contact with harmful pollutants and particulate matter can be present both near the street and inside the school’s classrooms.

Idling at school drop off and pick up wastes 1 gallon of gas per week per car and dumps 19 lbs. of CO2 into our air? According to the American Society of Mechanical Engineers (Florida Section) restarting a V6 vehicle consumes approximately the same amount of fuel as idling for five seconds. Therefore, idling is worse than restarting your car, so let’s all cut our engines whenever we can. It will not only improve the air quality in and around our school for the students and teachers, but it will also save us a little coin. And these days, keeping our kids healthy and saving money is a big deal.

Source - GO Media - by Joe Mohr - Cartoon taken from “What’s the Big Deal with Idling”
by Stephanie Hastings–President at Naperville for Clean Energy and Conservation

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