FAYETTEVILLE, Ark. (KNWA/KFTA) — Summer has officially begun, and the UV index is only getting higher. The UV index, or Ultraviolet Index, is a measure of the strength of ultraviolet (UV) radiation ...

HOUSTON — It's important to protect your skin from harmful sun exposure, but how do you know when to lather on the sunscreen? That's where the UV Index, which measure UV radiation levels, can help.

HOUSTON — It's important to protect your skin from harmful sun exposure, but how do you know when to lather on the sunscreen? That's where the UV Index, which measure UV radiation levels, can help.

There’s smoke and ash outside. You feel like you’re inhaling tiny dust particles. You check your weather app for the air quality. But what do the numbers and colors mean? The Air Quality Index is a ...

PHILADELPHIA (WPVI) -- With smoke blowing into the Philadelphia region from the wildfires in Canada, you may have heard a lot about the Air Quality Index or AQI. But what it is, exactly? The Air ...

If you live in regions like North India or cities like Delhi, what dominates concerns for every individual and family November onwards is the worsening AQI. Air Quality Index (AQI) numbers dominate ...

Every winter and festive season, India's air quality becomes a national concern, and with good reason. Air Quality Index (AQI) numbers dominate headlines and social media feeds, yet many people remain ...

There has been a lot of talk about air quality levels as nearly the entire tri-state area has been engulfed by smoke coming down from wildfires in Canada. But what do all the numbers actually mean?