EPA - Air Quality Index

Machines turn the wheels of commerce and industry. However, some of them discharge gases and microscopic particles into the air that, over a a period of time, could seriously affect the health of Americans, young and old alike, who suffer from asthma and other lung and heart conditions. Produced by the U.S. Environmental Protection Agency. Brought to you by SafetyTV Library, www.safetyissues.com. Life Has No Reset Button, Think Safety.