Full Caption: Pollutants Hang in the Air Along The Monongahela River at Clairton, Pennsylvania, 20 Miles South of Pittsburgh. The United States Steel Corporation Coke Plant is Seen at the Right. Previously it Has Been Cited for Violations of the Clean Air Act Which Was Passed by Congress and is Administered by the U.S. Environmental Protection Agency
Airplane Alert Antenna in World Trade Center Rubble
Contemporary United States (1968 to the present)
