Air pollution worse
a university of Southern California led study has found air pollution poses almost three times greater danger to health than previously thought. The study by a team of American and Canadian researchers was based on almost two decades of data on chronic health effects of particulate matter less than 2.5 microns or pm2.5, on residents of Los Angeles metropolitan area.
Researchers also noted specificity in cause of death with pm2.5 more strongly with ischemic heart disease (ailments caused by a decreased blood supply due to narrowing of the coronary arteries) than with cardiopulmonary or all-cause mortality. They measured the relative risk of mortality
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