Pollution Linked to Asthma

Tools

By Molly Clifton

A new study finds that air pollution from traffic is still a substantial public health concern.

Researchers in Canada say there's growing evidence of a link between exposure to traffic emissions and the development of asthma.

The report says Canada has generally good air quality, but there are still about 21,000 people die prematurely each year from air pollution.



What's onFull Schedule

Hot Video From AP

AP Video