Summary:
- Air pollution is due to chemical substances and particles released into the air mainly by human actions.
- Indoor air pollutants include both chemical and biological pollutants.
- Chemical pollutants include radon gas, carbon monoxide, and volatile organic compounds.
- Biological sources of air pollution include molds, pollen, and pet dander.
- Use the resource below to answer the questions that follow: How does the way most Americans spend their time make indoor air quality a pertinent health concern?
- What other countries do you think share this problem?
- Give three examples of pollutant sources.