People also should avoid going outside during times of heavy concentrations of air pollution, particularly if they are performing strenuous tasks like mowing or exercising, Horovitz said.
For his part, Rizzo said people also should lobby the U.S. Environmental Protection Agency to tighten the nation's clean air regulations.
To learn more about particulate pollution, visit the U.S. Environmental Protection Agency.
Copyright © 2012 HealthDay. All rights reserved.