1970 Clean Air Act Saving Lives

The Clean Air Act of 1970 set nationwide air quality standards and motor-vehicle emissions standards for the first time, and the federal government and some states have continued to take steps to tackle air pollution.
And, now Americans are living longer because the air they breathe is getting cleaner, a new study suggests. The average drop in pollution seen across 51 metropolitan areas between 1980 and 2000 appears to have added nearly five more months to people's lives, according to a study published Wednesday in The New England Journal of Medicine.
Residents of cities that did the best job cleaning up air pollution showed the biggest jump in life span; for example, Pittsburgh's cleaner air meant people there could expect to live nearly 10 months longer.
http://www.cnn.com/2009/HEALTH/01/21/healthmag.airpollution.lifespan/index.html?eref=rss_topstories

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