An electrical failure at 5:30 a.m. Monday forced the company to blow out coke oven gas out of the plant's batteries and stacks.

The group is also slamming U.S. Steel, saying the pollution has meant "people living in the mon valley suffer in a time when they ought to have been celebrating."

U.S. Steel says the flares are required under their permit to stop the emissions from coke ovens getting into the air.

Allegheny County Health Department tracks the air quality in the vicinity of the plant. It is described in next ....

They have described Monday's possible impact on in the air to be "minimal". Due to this not much get damage read next..

Due to such failure of power failure U.S. Steel says all the employees are safe and the plant not get damaged.