At the Suncor Oil Refinery in Commerce City, some air pollution is visible to the naked eye. But a new study found another unexpected, and invisible, contaminant: radioactivity.

Dust blows off of the Oceano Dunes State Vehicular Recreation Area, creating unhealthy air quality on the Nipomo Mesa. In ...

Waiting inside the club’s oak-paneled rooms were top executives from California’s major oil companies. They were the Air Pollution Foundation’s largest funders, and they were not happy. This frank ...

DENVER— The Center for Biological Diversity filed a lawsuit today challenging the Environmental Protection Agency’s approval of an air pollution permit that allows a Suncor Energy oil refinery to ...

The Valero Refining Co. has been fined the largest-ever penalty by Bay Area air quality regulators for a history of toxic ...

The oil refinery is close to overburdened communities that have already suffered decades of pollution from the refinery, creating a long-standing environmental injustice. “This dirty refinery should ...

D-day is approaching this week in Marathon Petroleum Corp.'s pursuit of a 10-year renewal of the major Texas air pollution permit that allows its oil refinery in the middle of El Paso to operate.

Built between the 1930s and early 1980s, petcoke facilities treat the remnants of crude oil refining. Environmental groups ...

The penalty against oil company Valero is imposed for massive pollution releases that went unreported for at least 15 years.

PHILADELPHIA—The company redeveloping the site of what had been the biggest oil refinery on ... of living near the refinery, the largest single source of air pollution in the city of Philadelphia.

One of those has to do with a major refinery component called the fluidized ... Ericka Cruz Guevarra: Coming up, what health advocates and the oil companies have to say about the new air pollution ...

For more than a century, the sprawling Phillips 66 oil refinery ... L.A. is an old refinery. It’s had a lot of problems with flaring and fires in recent years and high levels of pollution.