pacific southwest research station

Trees give roads a breath of fresh air

It’s Clean Air Month, and roadside trees are cleaning the air and helping us feel better.



If you live in an area where there’s a lot of people and traffic, air quality may have crossed your mind at one point or another—and rightly so. In recent years, the health of people living, working or going to school near roads with high traffic volume has been a quickly rising national concern. All over the world, studies are finding air pollution levels especially elevated in these areas.