2010 Jan. 22: MA: NEJM: Age life expectancy increased by clean air

2010 Jan. 22: MA: NEJM: Age life expectancy increased by clean air

A study published in January 22. Edition of the New England Journal of Medicine reported promising news about our ongoing efforts in the United States to clear the air and how these measures have contributed to the average life expectancy to 51 years of U.S. cities.
It seems that improving the quality of air can be good is paying dramatic, that the average lifetime of research by a team from Brigham Young University and HarvardSchool of Public Health.
Epidemiologist and lead author of the study by C. Arden Pope III and Douglas Dockery BYU Harvard School of Public Health have collaborated in pioneering studies have shown that the negative effects of PM2.5 or fine particles. United States
Environmental Protection Agency uses the work of these experts and others to pull back on the air pollution standards in 1997.
Knowing that the U.S. has some significant efforts inyears to improve the air quality of its cities, the team wondered if these changes had made any difference in terms of life expectancy of the population.
The detailed analysis led by Pope and Dockery set out to find an answer; to see if there were measurable results from all those efforts to improve the quality of our air.
The team of researchers evaluated pollution data that had been collected by the U.S. Environmental Protection Agency and compared this to health statistics from the years 1980 to 2000.
The experts used advanced statistics to account for other factors that might affect life span – things like population, income, education, migration, demographics and cigarette smoking.
At the end of the study period, it was found that Americans were living 2.72 years longer, and up to 5 months (about 15%) of that can be attributed to breathing less polluted air.
The study found that cleaner air added about 10 months to an average residents life in The cities where the pollution was particularly bad.
During the 1980’s and 90’s pollution levels dropped in 51 cities used in the study by a maximum of 21 to a minimum of 14 micrograms of particulates per cubic meter.
"A significant increase in life expectancy attributable This reduction of air pollution is significant," says C. Arden Pope III, PhD from BYU. "We think we are still a significant return on investment in improving our air quality."
InPlaces where air quality was relatively good it was, the longer life expectancy, if further improvements were made.
Maintain current efforts to cleaner air in some significant advantages.
The researchers suggest that the longevity gains from less cardiovascular problems and conditions of the heart-lung, see the usually occur in patients living with air pollution.
"It ‘is an important positive message that efforts to reduce concentrations of pollutants withthe United States over the past 20 years has led to significant and measurable improvements in life expectancy, "says co-author, Douglas Dockery, ScD, Harvard School of Public Health.
Of course, the researchers emphasize that there are many factors that affect life expectancy, but a clean air.
The good news is that this most recent analysis has shown that improving air quality in our cities, we can (and have) had a positive effect on life expectancyexpectancy age.
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