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 across the street.
She can also pick out the different colors of smoke and steam emanating from it.
“That’s like a white smoke,” she said, standing on her porch on an overcast afternoon. “And then over there, like a dark smoke.”
The fumes that day weren’t too bad, owing to rain that had just come through.