Needmore Road reopens after liquid nitrogen leak

Crews on scene of liquid nitrogen spill on Needmore Road Saturday

DAYTON, Ohio (WDTN) – Needmore Road is back open after hazmat crews stopped a liquid nitrogen leak.

According to David Wright, Dayton Fire Department district chief, crews were called to Airgas Priority Nitrogen in the 3400 block of Needmore Road around 5:00 p.m. Saturday on a report of a leak from a nitrogen tank attached to a semi-truck.

When first responders arrived, they found white vapor leaking off the rear of a semi-truck, Wright said. Keeping a safe distance away, hazmat crews confirmed the substance was liquid nitrogen, he added.

Firefighters found the substance to be leaking from a valve not closed all the way on the truck, Wright explained. About 15 firefighters were on scene, and they were able to get that valve closed, he added.

Officials had to isolate the area since liquid nitrogen can displace oxygen, Wright said, and there’s a chance oxygen levels can become too low in the atmosphere.

The substance has dissipated, and the atmosphere never became oxygen-deficient during this incident, he said.

“Almost three-quarters of the air that we breathe is made up of nitrogen,” Wright said. “So it’s not going to hurt or harm anything. It’s only when it gets to such a high concentration that there’s no oxygen present that it’s a problem.”

Officials have determined the incident to be accidental, and no charges will be filed, Wright said. The area has been cleaned up, and there is no longer any hazard to the public, he added.

The road reopened after about 90 minutes. No one was hurt during the incident, Wright said.

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