I've seen this off-and-on in several mid-to-late 1950s TV westerns. In those years, the Los Angeles basin was plagued by "white smog" consisting of unburned hydrocarbons (unburned gasoline vapor). Some days it was so bad that it was hard to see beyond a couple hundred yards. By the afternoon, it was painful to take a deep breath. People not yet born will have no idea how bad our L. A. area air was in those days. I was tempted to do a presentation on why this was, but I suspect eyes would glass over. Pollutants from internal combustion engines was reduced dramatically during the following 20 years, but the L. A. basin can still have a "bad-air" day (though no where near the problem it was in the 1950's).
Review of Sins of the Father
