Living in Pittsburgh from 1986 to 1991 it was common in Squirrel Hill, among the best neighborhoods, for the air to go bad, completely unbearable and disgusting

Living in Pittsburgh from 1986 to 1991 it was common in Squirrel Hill, among the best neighborhoods, for the air to go bad, completely unbearable and disgusting in the middle of the night even in summer as coke plants did their work. And authorities lied about it every time. Pittsburgh has a lot going for it, but bad air quality is a major open issue.