Cook County is under a heat watch through Thursday evening. Temperatures could feel like 105-110 degrees Wednesday.

IDEM forecasted Air Quality Action Days indicate anticipated higher levels of ground-level ozone and fine particulate matter only. Other factors may affect overall air quality. Air Quality Action Days ...

As smoke from wildfires continues to choke the air with particulate matter while ozone action days populate the summers, ...

Americans did better on aerobic and strength goals But the annual ranking found some worrisome trends on air quality and food ...

Conditions continued to worsen after the region was put under an Environment Canada Air Quality Warning Monday afternoon. A ...

Michael Karlis is a Staff Writer at the San Antonio Current. He is a graduate of American University in Washington, D.C., ...

Good news arrives from the Environment Ministry. Air quality improves across India. A majority of cities under the National ...

“Under the guidelines, outdoor activities are prohibited when the API exceeds 100. If it goes beyond 200, home-based learning ...

UCLA researchers have launched a new network of air pollution monitors for northwest L.A. areas near the Palisades fire.

Unhealthy air quality has been recorded in eight regions of Malaysia and can be partially attributed to worsening ...

Saskatchewan's two largest cities are among the many communities across the province affected by air quality warnings today.

Nine locations in Malaysia saw unhealthy air when measured using the Air Pollutant Index (API), said the Department of ...