Concurrent Heat Waves, Air Pollution Exacerbate Negative Health Effects of Each (1 of 2) (image) University of California - Irvine Share Print E-Mail Caption A heat wave and pollution episode struck the eastern portion of the United States and Canada in late June of 2005. Observations show the concurrence of high surface ozone, an abundance of fine particulate matter and scorching temperatures. Credit Jordan Schnell / Princeton University Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.