Effects of Low Oxygen in Air on Human Health

At what percentage of oxygen by volume in air will a person experience lethargy, impairment of coordination, and nausea?

A. 19%

B. 17.5%

C. 15.5%

D. 14%

Final answer:

The percentage of oxygen in air at which a person experiences lethargy, impairment of coordination, and nausea is 15.5%.

Explanation:

The percentage of oxygen by volume in air where a person starts experiencing lethargy, impairment of coordination, and nausea is 15.5%. This condition is called hypoxia, which occurs when the body does not receive enough oxygen. When the oxygen concentration drops below 15.5%, it can result in these symptoms.

Effects of Low Oxygen in Air on Human Health

Low oxygen levels in the air can have detrimental effects on human health. When the percentage of oxygen in the air drops below 15.5%, people may start experiencing symptoms such as lethargy, impairment of coordination, and nausea. This condition is known as hypoxia.

Hypoxia occurs when the body does not receive enough oxygen to function properly. As a result, various bodily functions are impaired, leading to symptoms like dizziness, confusion, and shortness of breath. In more severe cases, hypoxia can cause organ damage and even be life-threatening.

It is important to be aware of the effects of low oxygen in the air, especially in situations where oxygen levels may be reduced, such as in high-altitude environments or poorly-ventilated spaces. Understanding these risks can help individuals take necessary precautions to protect their health and well-being.