From the April 1971 magazine.

About Alcoholism - Alcoholism Information, Research and Treatment

Smog Drives Rats to Drink

Why do humans crave alcohol? Dr. Robert S. Pogrund, an associate professor at the UCLA School of Public Health, has come up with a new culprit, smog.

Dr. Pogrund, investigating smog and the changes it causes in human behavior, recently exposed 10 rats to air with the smog content of a rush-hour freeway (roughly 200 parts per million of carbon monoxide).

He offered these rats a free choice of four liquids--plain water, a sugar solution, a saccharin solution, and alcohol. Ten rats living in a smog-free atmosphere had similar options. When Dr. Pogrund started...

-- Parade