DNREC secretary responds to questions from public at town hall held to address the ongoing emissions of excess sulfur dioxide from the Delaware City Refinery.

Residents in Delaware City are concerned about their air quality after a mechanical breakdown at a refinery there last week has caused it to release sulfur dioxide, pushing the chemical's levels ...

Historically, the Delaware City Refinery has been the state’s biggest polluter, frequently cited for air pollution violations. In October 2024, the Delaware Department of Natural Resources and ...

Residents in Delaware City are concerned about their air quality after a mechanical breakdown at a refinery there last week has caused it to release sulfur dioxide, pushing the chemical’s levels ...

The Delaware City Refinery said that repairs to the primary emissions control device have been completed. The final stages of system restoration are in the works, according to the update provided ...

A boiler failure was to blame for the release, which began on May 25. Smoke is emitted from stacks in the ground at the Delaware City Refinery as seen from Old New Castle on June 3, 2025.

The Delaware City Refinery has been continuously releasing more than permitted amounts of toxic sulfur dioxide into the air for a week now, but air quality in the area remains safe, according to ...