Houston faces hazardous air quality Friday as a dome of stagnant high pressure lingers, worsening pollution and creating ...

Air quality on Thursday is expected to become unhealthy for vulnerable groups such as children, older adults, and those with ...

It is going to become very smoky tonight and the air quality will possibly become unhealthy for everyone. This smoke will ...

Climate change is driving more frequent and more intense wildfires around the world, including in the United States. These ...

The agency aims to restructure regional haze reduction requirements, which aim to clamp down on industrial emissions that mar ...

Ground-level ozone forms when pollutants from vehicles, industrial plants and other sources mix with sunlight, and not ...