1. The document discusses various types of air pollution including carbon monoxide, sulfur dioxide, nitrogen dioxide, particulate matter, ground-level ozone, and smog.
2. It describes the sources and health effects of each pollutant. Carbon monoxide is produced from burning fossil fuels and deprives the body of oxygen. Sulfur dioxide causes wheezing and shortness of breath.
3. The document provides tips for reducing air pollution such as biking, encouraging carpooling, turning off lights when not in use, and joining groups that work to stop pollution.