School bus emissions study to be released

June 25, 2007

A U.S. government study suggested anti-idling advocates are on the right track in an ongoing debate concerning school bus exhaust emissions.

Many regulatory agencies and school districts limit the idling of school buses while students enter or leave the vehicles, thereby restricting children's exposure to airborne diesel pollutants.

But concerns remained whether stopping and then restarting school bus engines might result in higher emissions of diesel pollutants than occur during continuous idling.

In the new study by John Kinsey and colleagues at the U. S. Environmental Protection Agency, diesel emissions from a limited number of school buses under both scenarios were measured. The researchers concluded restarting buses results in fewer emissions, so long as the vehicles depart quickly without any extended period of idling.

The study is to be published in the July 15 issue of the journal Environmental Science & Technology.

Copyright 2007 by United Press International

Explore further: Meat food waste has greater negative environmental impact than vegetable waste

Related Stories

Unique solar lab shines year-round light in Stockholm

February 25, 2015

Stockholm is one of the world's most sunlight-deprived capitals for almost half of the year. But now, the city's premier technical university, KTH Royal Institute of Technology, is home to one of the world's few solar laboratories.

Scalextric is fun, but it doesn't make sense for the M1

January 28, 2015

It sounds like something from the pages of books from the 1960s looking to the future: electric cars powered by current drawn from electrified rails beneath the road. However possible such ideas seemed to be 50 years ago, ...

Recommended for you

Ice sheets may be more resilient than thought

September 3, 2015

Sea level rise poses one of the biggest threats to human systems in a globally warming world, potentially causing trillions of dollars' worth of damages to flooded cities around the world. As surface temperatures rise, ice ...

Climate ups odds of 'grey swan' superstorms

August 31, 2015

Climate change will boost the odds up to 14-fold for extremely rare, hard-to-predict tropical cyclones for parts of Australia, the United States and Dubai by 2100, researchers said Monday.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.