She recommended reducing exposure and using air purifiers inside but added it’s harder to remove ozone from indoor air. It also is hard to tell when ozone is building up, Bakian said ...

Warmer temperatures might be causing plants to emit more chemicals into the atmosphere, adding to one of Phoenix's worst air ...

But don’t get too close! If we breathe ozone, it irritates our tissues, potentially causing respiratory problems. Because commercial jets fly in the lower stratosphere, some of the “fresh” air flowing ...

However, they caution that a higher level of ozone could prove harmful while spraying chemicals into the air might cause health problems. “The ozone concentration is kept at a safe level for ...

The cold winter months may bring temporary relief from Colorado’s long-running ozone pollution problem, but it’s crunch time ...