In the USA, the two sources of indoor air pollution causing the most deaths are cigarette smoke and radon. The answer to your question is B.
EXPLANATION:
Cigarette smoke and radon are two of the top ten sources of indoor air pollution in the USA. The first one, cigarette, becomes the most dangerous indoor air pollution which dangers your health. When someone smokes inside a room, whether it is in a house or apartment, the chemicals resulted from the tobacco smoking will last longer and stay in the air. This air, containing many dangerous chemicals from the smoke, will go into the human body as he breathes. The effects contribute to lung cancer, heart disease, and general irritation of the throat, eyes, nose, and lungs.
The second one, radon, becomes the second most dangerous indoor air pollution. Radon is a radioactive gas that contains the high-level risk of lung cancer. It becomes the cause of 7.000 until 30.000 lung cancer death in the USA every year. What makes radon dangerous is that this gas is odorless, colorless, and tasteless. You won’t realize that you inhale radon until you feel something wrong with your body.
Other sources contribute to indoor pollution you should be aware of:
· Carbon monoxide
· Biological sources
· Nitrogen dioxide
· Pesticide
· Organic gases
· Respirable particles
· Formaldehyde
· Asbestos
To reduce the risk of serious health condition caused by indoor air pollution, you can do several ways such as: avoiding smoking in a room, minimizing clutter, and using a dehumidifier.
Learn more
If you are interested in this topic, we recommend you to learn more about indoor air pollution in the USA by taking a look at these following questions:
1. Is air pollution related to scientific growth? : brainly.com/question/7974459
2. Wildfires are? : brainly.com/question/999189
Keywords: indoor air pollution, USA indoor air pollution
Subject: Health
Class: 10-12
Subchapter: indoor air pollution
