While many thought it was caused by massive forest fires in Canada others are not so ready to give it such a simple explanation as other areas of the state where not covered by the mysterious red smog. northern county's closer to Canada you think would be covered by the smoke like Erie and Mercer where not.
|Pollution in Pittsburgh was so bad some days as seen in noon picture above|
Of course red skies over certain communities where common like in Connelsville where beehive coke ovens where operated but by the 40s most had been shut down and replaced with less smog producing ovens.
So that was not the cause of it possibly the Pittsburgh area was getting ready to have its own deadly killer smog like that which hit Donora Pa. in 1948
What ever it was it is still speculated to this day to even being a Government secret experiment. Because they did not have the complex capture and testing systems like they do today. What ever it was thank God it went as quickly as it came and did not settle over the valleys.
seems the smoke from the forrest fire did effect all of waestern pa that day I recenty ran across htese arcticles talking about it in Erie pa.