Question Earthority!

“Air pollution heavy in small particles may cause blood clots in the legs, the same condition air travelers call ‘economy class syndrome’ from immobility during flight, researchers said on Monday. Dr. Andrea Baccarelli of the Harvard School of Public Health in Boston and colleagues said they found the link after looking at 870 people in Italy who had developed deep vein thrombosis between 1995 and 2005. … Air pollution from automobiles and industry can contain tiny particles of carbon, nitrates, metals and other materials that have been linked over the years to a variety of health problems. While lung diseases were an initial concern, later research has indicated it may cause heart disease and stroke, possibly because it increases the rate at which blood can coagulate, Baccarelli and colleagues said.” (05/12/08)