American Lung Association report found that about 156 million people live in counties plagued by high levels of ozone and ...

The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe ...

A new report from the American Lung Association shows that Phoenix's ozone problem is worsening, while its particulate ...

Valley business leaders are breathing a sigh of relief after the Trump administration agreed to modify federal ozone guidance ...