Indoor Air sciences CSMI Practice Exam

Why are VOCs significant in indoor air quality?

1. They increase ventilation

2. They are harmless to humans

3. They can pose health risks

4. They enhance humidity levels

The correct answer is: They can pose health risks

Volatile Organic Compounds (VOCs) are significant in indoor air quality because they can pose health risks to humans. VOCs are a diverse group of organic chemicals that can easily evaporate at room temperature, which is why they are commonly found in many household products, such as paints, cleaning agents, and solvents. When inhaled, these compounds can lead to a variety of health issues, ranging from short-term effects like eye, nose, or throat irritation to long-term consequences such as liver, kidney, or central nervous system damage. Moreover, some VOCs are considered carcinogenic or are associated with serious health problems like asthma and other respiratory issues. Given their potential to affect air quality in enclosed spaces, understanding and mitigating the presence of VOCs is critical for ensuring a safe and healthy indoor environment. The other options do not accurately reflect the significance of VOCs: they do not increase ventilation, are not harmless, and do not enhance humidity levels directly. Instead, addressing the presence of VOCs is essential for improving indoor air quality and safeguarding health.