Smog from air pollution, wildfires, or smoke from a factory chimney may also reduce your range of vision or create a hazy environment. This might make it hard to drive or get around and increase ...

Skies over metro Phoenix were hazy and gray Tuesday morning. Here's what is causing poor air quality in Phoenix and when it ...

"Avoid all physical activity outdoors," the EPA advises at this level. According to the EPA's map, Picture Rocks and Marana ...

Continued exposure to fine particulate matter is linked to higher levels of diffuse myocardial fibrosis, according to a study ...

Today, outdoor air pollution has declined dramatically in rich countries. Over the past three decades, death risk from air pollution has spectacularly declined by over 70%, while waterways have ...