A 66 percent reduction in benzene;

A nearly 60 percent reduction in mercury from man-made sources like coal-fired power plants;

An 84 percent decrease of lead in outdoor air, which slows brain development in children;

The removal of an estimated 1.5 million tons per year of air toxics like arsenic, benzene, lead and nickel from stationary sources and another 1.5 million tons per year (about 50 percent) of air toxics from mobile sources. This is significant because air toxics (also referred to as hazardous air pollutants or HAPs) are known or suspected of causing cancer and can damage the immune, respiratory, neurological, reproductive and developmental systems;

And, approximately 3 million tons per year of criteria pollutants, like particulate matter and sulfur dioxide, have been reduced from cars and trucks as co-benefits of air toxics reductions.