EXPERTS CAUTIOUS OF EARLY CONCLUSIONS FROM EPA-BACKED AIR STUDY

Air quality experts are cautioning against premature conclusions based on a recent study partially funded by EPA that found human exposure to tiny particles of soot did not result in cardiovascular health effects. These experts say the study does not prove that so-called "ultrafine" particles are safe. Academic and industry scientists agree that the findings are important because test animals exposed to much greater concentrations of ultrafine particulate matter (PM) than those used in this study have shown adverse cardiovascular...