The Donora killer smog of 1948 was primarily a consequence of ________.
emissions from home furnaces emissions from the steel mill emissions from automobiles climate change meteorological conditions
The Donora killer smog of 1948 was primarily a consequence of emissions from the steel mill. The smog was exacerbated by meteorological conditions, such as temperature inversions, which trapped pollutants in the valley where Donora, Pennsylvania, is located.