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BBC: “Cleaner air adds months to life”
The New England Journal of Medicine study matched air pollution and life expectancy statistics from 51 cities between 1980 and 2000. Scientists found people living 2.72 years longer by 2000 – 15% of which they attributed to falls in pollution. Studies have found poor air quality can worsen lung and heart disease. [...]

CNN: “Drop in pollution linked to longer lifespans”
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.[...]

USNews: “Cleaner air equals longer life”
New study shows there is a direct relationship between the level of fine-particle pollutants in the air people breathe and life expectancy in cities across the United States.
Reducing the average level of fine-particle pollutants — the most damaging kind — by 10 micrograms per cubic meter of air adds about seven months of life expectancy, according to the study of 51 metropolitan areas from Portland, Wash., to Tampa Bay, Fla.[...]

WebMD: “Life expectancy up, thanks to cleaner air”
Steps to curb air pollution in the United States are paying off, helping to dramatically increase average life spans, a new study says.
Researchers at Brigham Young University and the Harvard School of Public Health report in the Jan. 22 issue of the New England Journal of Medicine that the average life expectancy in 51 U.S. cities increased nearly three years over recent decades.
“Such a significant increase in life expectancy attributable to reducing air pollution is remarkable,” says C. Arden Pope III, PhD, a BYU epidemiologist and lead author of the study. “We find that we’re getting a substantial return on our investments in improving our air quality.”[...]