Answer:
Indoor air pollution refers to the presence of harmful gases and substances inside buildings that can adversely affect human health. The sources of indoor air pollution are:
1. Combustion sources: This includes gas stoves, wood stoves, fireplaces, and furnaces. They release carbon monoxide, nitrogen dioxide, and particulate matter, which can cause respiratory problems.
2. Building materials: Building materials such as paint, carpets, and adhesives can release volatile organic compounds (VOCs), which can cause headaches, dizziness, and eye and respiratory irritation.
3. Radon: Radon is a naturally occurring gas released from the ground. It is the second leading cause of lung cancer in the United States.
4. Tobacco smoke: Tobacco smoke contains over 4,000 carcinogenic chemicals. Exposure to secondhand smoke can cause respiratory problems and increase the risk of lung cancer.
5. Biological pollutants: These include mold, bacteria, and viruses. They can cause allergic reactions, asthma, and other respiratory problems.
To minimize the risk for people exposed to indoor air pollution, the following steps can be taken:
1. Increase ventilation: Open windows and doors to allow fresh air to circulate.
2. Use air purifiers: Air purifiers can remove harmful particles from the air.
3. Keep the humidity low: Maintain indoor humidity between 30 and 50 percent to prevent mold growth.
4. Use natural cleaning products: Use natural cleaning products instead of products that contain VOCs.
5. Quit smoking: Avoid smoking inside buildings to prevent exposure to secondhand smoke.
6. radon test: Test for radon in homes and take steps to mitigate if high levels are found.
By following these steps, the risk for people exposed to indoor air pollution can be minimized, and indoor air quality can be improved.
Step-by-step explanation: