U.S. Environmental Protection Agency (EPA) air quality monitors are disproportionally located in predominately white ...

Depending on the different pollutants in the air, like pollen or wildfire smoke, some days can be easier to breathe than ...

It’s a two-fer Tuesday at Hawai‘i Volcanoes National Park as Episode 13 of the ongoing summit eruption of Kīlauea on the Big ...

AQI is calculated into six color-coded categories — the higher ... particle pollution (particulate matter), carbon monoxide, sulfur dioxide and nitrogen dioxide. The EPA has established national ...

After a slow, sporadic start Tuesday morning, the 12th episode of the ongoing summit eruption of Kīlauea volcano on the Big Island was once again putting on a fantastic fountaining display similar to ...

"There was others, you know, nitrous oxide, sulfur dioxide and other things," Ibarra ... when normally the color of the dust is more gray-white. "I'm just speculating that it has more iron in ...