According to the Environmental Protection Agency, the pollutants inside your home can be anywhere from two to five times higher than outdoor levels. In some cases, it can be much worse. To keep your ...

For decades, the United States made steady progress in reducing surface ozone pollution, the main ingredient in smog. But ...

If you live in Denver, Boulder, or anywhere along Colorado’s northern front range, you’ve likely had to deal with some pretty terrible air quality this summer. Many of us habitually check our phones ...

While you may think of ozone as a welcome element in our Earth's atmosphere that protects us from the sun's harmful radiation, ground-level ozone that we breathe is a harmful pollutant.