Wednesday, December 1, 2010

Clean air affects the length of life - scientists



Reducing air pollution has contributed to an average of five months of life expectancy of people in dozens of American cities over the past two decades



Researchers from Brigham Young University and Harvard University (USA) came to this conclusion based on data from the change in air quality and life expectancy for the period from 1980 to 2000 in 51 American city, including Washington.



Taking into account the impact on life expectancy of other factors such as population changes, income and education, as well as migration and smoking, they concluded that clean air contributes significantly to increased life expectancy.



The researchers concluded that, overall, the country life of citizens has increased from 1980 to 2000 an average of 2.72 years and five months of this period due to improved air quality, transmit medicinews.ru.



Our investments are paying off," - said the study's lead author Arden Pope, an epidemiologist and professor of economics at Brigham Young University. He added that the reduction of pollution in large cities has become "a major, national, natural experiment."



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