CompTIA Network+ Practice Test

What is the primary hazard associated with burning PVC?

1. Emits high temperatures

2. Releases poisonous gases

3. Creates toxic ash

4. Produces harmful smoke

The correct answer is: Releases poisonous gases

Burning PVC (polyvinyl chloride) poses serious health risks primarily because it releases poisonous gases, particularly dioxins and hydrochloric acid. Dioxins are highly toxic compounds that can have severe long-term effects on human health, including potential risks of cancer, immune system damage, and developmental issues. The hydrochloric acid released can cause respiratory irritation and damage to mucous membranes upon inhalation. While other options address legitimate hazards associated with burning materials, such as high temperatures, toxic ash, and harmful smoke, the specific nature of PVC combustion emphasizes the release of these toxic gases as the most critical concern. The presence of these gases in the environment after PVC is burned highlights the importance of proper handling and disposal methods to avoid exposure and safeguard health.