The brain-harming metal is discharged directly into the river or carried to it on air currents. Some argue authorities are doing too little to stop both routes of pollution.
We discuss the settlement of a class action lawsuit against U.S. Steel and how the Christmas temperature inversion that made Pittsburgh's air smell like "rotten eggs, sewer backup, burning plastic and hospital waste."
A new rule proposed by the Trump administration would limit scientific studies that use confidential health data when setting public health regulations.
A meeting was held to explain to residents their options to take the settlement money, or opt out and keep their rights to a future claim against U.S. Steel.
The study found an estimated 26,000 lives were saved by replacing coal with natural gas, but health impacts from fracking weren't considered in the study.
Many thyroid cancer patients point to the nuclear accident at Three Mile Island 40 years ago as the cause of their disease. A Penn State College of Medicine study shows a correlation.
The health department says climate change will make temperature inversions more frequent. A foggy blanket of air pollution hung over the county during the week of Christmas.
