Yale-affiliated scientist finds that even a few hours’ exposure to ambient ultrafine particles common in air pollution may potentially trigger a nonfatal heart attack.
Myocardial infarction is a major form of cardiovascular disease worldwide. Ultrafine particles (UFP) are 100 nanometers or smaller in size. In urban areas, automobile emissions are the primary source of UFP.
The study in the journal Environmental Health Perspectives is believed to be the first epidemiological investigation of the effects of UFP exposure and heart attacks using the number of particles and the particle length and