The 42-inch pipeline has a blast zone that includes hundreds of homes, businesses, schools, day cares, parks, and recreation ...

A study by UC San Diego researchers reveals that pollutants found in the sewage-laden Tijuana River are ending up in the air ...

Nearly two dozens wildfires were burning in the Canadian province of Manitoba, which is just north of Minnesota and North ...

In recent years, high ozone levels have been detected at Chatfield State Park, South Table Mountain in Golden, Boulder ...

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater ...

Breathing in wildfire pollution may make it harder for people with lung cancer to survive, according to a new study from UC ...

If wildfire smoke bothers you, be prepared for worsening air quaility this week. View Interactive fire weather and air ...

Local researchers with the University of California San Diego and Scripps Institution of Oceanography examine how pollutants ...

Coastal air samples around San Diego showed high levels of pollutants, including drugs and sunscreen chemicals.

The state law imposes massive fines on anyone who releases air quality data, possibly violating the First Amendment.

"Efforts to slash staff, funding and programs at EPA are leaving families even more vulnerable to harmful air pollution..." ...