State health officials said meteorologists tracked potentially moderate to unhealthy ozone levels for Tuesday.

Here's how experts track the ozone and you can do your part by not driving a car or using a gas mower in the middle of the ...

Getting your Trinity Audio player ready... What exactly are “Ozone Action Day” alerts, and why do they seem to multiply in the heat? So far in 2024, Colorado health officials have issued 15 Ozone ...