The first of 20 people die from the Donora Smog

October 30, 1948Donora, PennsylvaniaThe first of 20 victims of the Donora smog dies An ominous thick, yellow cloud descended on the town of Donora on October 27, 1948. The mist was comprised of a lethal mixture of carbon monoxide, sulfur dioxide, and metal dust from the nearby zinc plant and steel mill, and was trapped…