"You are what you breathe," says Dr. David Suzuki. The quality of air that we breathe into our lungs can have a great impact on our overall health. Experts in the field Drs. Michael Brauer and Sarah Henderson can answer your questions about the health effects of air pollution and the risk of exposure in your communities. Topics include pollutants and their sources, pollutant transport in the atmosphere, health effects, and airshed management,