The Clean-Air Act went a long way toward making the air we breathe cleaner and healthier, but it didn't go far enough. Despite the tons of lead, sulfur dioxide and other combustion products filtered from the atmosphere, millions of Americans suffer from pollution-related breathing disorders, including asthma and bronchitis. In 1993 the American Lung Association sued the Environmental Protection Agency to make it re-evaluate its standards for particulates--very fine dust particles (about one twenty-fifth the diameter of a human hair)--after studies showed that they can lodge deep in the lungs and may contribute to tens of thousands of premature deaths.
Last...
To continue reading:
or
Log-In
