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Reduced pollution increases life expectancy: study - Naveed Yaseen - 01-26-2009 07:18 AM
Reducing pollution produces measurable health gains, according to a study released Wednesday that found cleaner air had lengthened life expectancy by five months in 51 US cities. Researchers at Brigham Young University and Harvard School of Public Health found that average life expectancy increased by three years between 1980 and 2000 in those cities, and that approximately five months of that gain owed to cleaner air.
“Such a significant increase in life expectancy attributable to reducing air pollution is remarkable,” said C Arden Pope III, a BYU epidemiologist and lead author on the study, published in the New England Journal of Medicine. “We find that we’re getting a substantial return on our investments in improving our air quality. Not only are we getting cleaner air that improves our environment, but it is improving our public health.” The researchers compared data in 51 US cities on changes in air pollution between those 20 years and the life expectancies of residents during those years.
Cities that had previously been the most polluted and saw the most extensive clean-ups added an average 10 months to residents’ lives. By the end of the study period, life expectancy had increased by 2.72 years in the cities studied, with up to five months, or 15 percent of that gain owing to reduced air pollution. afp
http://www.dailytimes.com.pk/default.asp?page=2009\01\26\story_26-1-2009_pg14_4