Dusty Air Doesn’t Boost Hospital Stays

Some types of air pollution are not harmful enough to send people to the hospital, a study says. Researchers looked at pollution of the air by large particles. These come from dust and farm work. In 108 U.S. cities, this type of pollution was not linked with hospitalizations for heart or lung diseases. By contrast, places with a lot of small particle pollution are known to have more hospital stays. The study was published in the May 14 issue of the Journal of the American Medical Association.