Local environmental groups in Western Pennsylvania say Nippon Steel’s purchase of U.S. Steel should lead to cleaner ...

Researchers analyzed three years of attendance records for students in the school district directly adjacent to the ...

The sprawling 123-year-old Clairton Coke Works along the Monongahela River is Pennsylvania's only operating facility that makes coke, a fuel used in the steel-making process.

Environmental advocates say battery 15 at Clairton Coke Works was one of the most polluting parts of the facility. Those advocates say its pollutants are linked to cancer and breathing problems.

At issue are newly proposed rules that would tighten the emissions from Clairton Coke Works, long a bane of many residents and environmentalists although also a key part of the Mon Valley economy ...

Though it’s cleaner than in the 1970s, the Clairton Coke Works is still one of the biggest sources of air pollution in all of Western Pennsylvania. The Allegheny County Health Department has tried to ...

Donald Fry, 76, has lived in his Mitchell Avenue home — a local landmark and former home of Clairton Coke Works Superintendent Henry Davis from 1903 to 1910 — for about 20 years.

From her front porch, Collette Williams can see the lights of US Steel’s Clairton Coke Works, the largest coke plant in North America, between the houses… ...

Clairton residents, US Steel employees pack air quality hearings; Clairton Coke Works fire still under investigation. Health Department will continue to provide daily 3 p.m. postings about ...

There are no federal rules limiting benzene emissions at coke plants, but the Environmental Protection Agency is trying to change that. You can't see benzene coming out of the Clairton Coke Works ...

U.S. Steel is responding to a reported breakdown at its Clairton Coke Works plant that sent high levels of pollution into the air. According to the Allegheny County Health Department, the incident ...

Elevated sulfur levels reported at the Clairton Coke Works plant this week have some residents concerned for their health. It comes after the Allegheny County Health Department said repairs were ...