Area Residents Reporting Strange Odor: Here's What's Causing It

Odor from ATI draws more Albany complaints

Weather conditions can be conducive to "odor retention," the company's president says. Here's what's creating the stink.

What was that smell? Strange odor in New Castle and Delaware Counties explained

TRAINER, Pa. (WPHL) -- If you were out and about Thursday morning in Southern Delaware County, Pa., or Northern New Castle County, Del., there appears to be a reason why you may have smelled a rather strong odor of sulfur or gasoline. The cause of the smell was a "burn-off" at the Monroe Energy refinery in Trainer after a power outage. According to Monroe Energy, the refinery lost power around 6:30 a.m., and the company initiated its safety shut…

Strong gas odor prompted a flood of 9-1-1 calls

Firefighters from several New Castle and Delaware county fire companies criss-crossed the North Wilmington area Thursday morning, July 10, 2025, responding to 9-1-1 calls reporting gas odors.

Refinery equipment failure causing strong odor in Pennsylvania and Delaware, officials say

Officials in Pennsylvania and Delaware say they are getting calls Thursday morning about an odor in the air.

Smoke plume seen at Marcus Hook refinery as gas leak smell reported across Delco, New Castle County

By Joe Brandt Click here for updates on this story     Pennsylvania (KYW) — What’s that smell in New Castle County, Delaware and in Delaware County, Pennsylvania? Emergency response agencies in the area say they’re aware of the odor and are looking into it. It appears to be connected to a refinery in Marcus Hook, Pennsylvania. The Woodlyn Volunteer Fire Company said the Monroe Energy Refinery is conducting a “burn-off” that is producing a plume …

Smoke plume seen at Marcus Hook refinery as gas leak smell reported across Delco, New Castle County | News Channel 3-12

By Joe Brandt Click here for updates on this story     Pennsylvania (KYW) — What’s that smell in New Castle County, Delaware and in Delaware County, Pennsylvania? Emergency response agencies in the area say they’re aware of the odor and are looking into it. It appears to be connected to a refinery in Marcus Hook, Pennsylvania. The Woodlyn Volunteer Fire Company said the Monroe Energy Refinery is conducting a “burn-off” that is producing a plume …