Women More Affected Than Men By Air Pollution When Running Marathons

Interesting study

http://www.medilexicon.com/medicalnews.php?newsid=181087

"Previous research has shown that during a race, marathon runners inhale and exhale about the same volume of air as a sedentary person would over the course of two full days," Marr said. "Therefore, runners are exposed to much greater amounts of pollutants than under typical breathing conditions."