What part of pollution and evolution is not yet understood?"It's important because it points to the fact that environmental factors are related to heart disease and that pollution is something that we all have to be concerned about," said study author Dr. Joel Kaufman of the University of Washington.
Study: Polluted Air Harms Women's Hearts
BOSTON, Jan. 31, 2007
(CBS/AP) The fine grit in polluted air raises the risk of heart disease in older women much more powerfully than scientists realized, a big U.S.-funded study has found, raising questions of whether U.S. environmental standards are strict enough. The U.S. Environmental Protection Agency tightened its daily limit for these tiny specks, known as fine particulates, in September. But it left the average annual limit untouched, allowing a concentration of 15 millionths of a gram for every cubic meter of air. In the study of 65,893 women, the average exposure was 13 units, with two-thirds of the women falling under the national standard. But every increase of 10 units, starting at 0, raised the risk of fatal cardiovascular disease by about 75 percent. That is several times higher than in a study by the American Cancer Society. "There was a lot of evidence previously suggesting that the long-term standard should be lower, and this is adding one more study to that evidence," said Douglas Dockery, a pollution specialist at the Harvard School of Public Health. It has long been known that particulates can contribute to lung and heart disease, ...full text
BOSTON, Jan. 31, 2007
(CBS/AP) The fine grit in polluted air raises the risk of heart disease in older women much more powerfully than scientists realized, a big U.S.-funded study has found, raising questions of whether U.S. environmental standards are strict enough. The U.S. Environmental Protection Agency tightened its daily limit for these tiny specks, known as fine particulates, in September. But it left the average annual limit untouched, allowing a concentration of 15 millionths of a gram for every cubic meter of air. In the study of 65,893 women, the average exposure was 13 units, with two-thirds of the women falling under the national standard. But every increase of 10 units, starting at 0, raised the risk of fatal cardiovascular disease by about 75 percent. That is several times higher than in a study by the American Cancer Society. "There was a lot of evidence previously suggesting that the long-term standard should be lower, and this is adding one more study to that evidence," said Douglas Dockery, a pollution specialist at the Harvard School of Public Health. It has long been known that particulates can contribute to lung and heart disease, ...full text
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