People who live near highways can breathe a little easier, thanks to a new type of sound barrier that can help clean the air.
Engineers help develop air-cleaning sound barrier
![SmogStop Barrier developed by Guelph researchers will help reduce pollution.](../../wp-content/uploads/2015/10/By-Danielle-Scott_Flickr-used-under-CC-by-2-900x400.jpg)
People who live near highways can breathe a little easier, thanks to a new type of sound barrier that can help clean the air.