If this is true, every baby boomer must be autistic, especially here in Michigan.  I can remember in the 50s and 60s where the air was thick with industrial pollutants, so thick it would leave crud on a car.  You could actually see it and smell it, unlike today.  I worked on the railroad during the summers in the late 60s to pay for college.  I can remember the first time I went to Toledo and we passed a fiberglass plant where the fiberglass was in the air and stung my arms.  That's the way it was back then.  Comparatively speaking, there is no pollution any more. 
