VOCs become volatile at a certain temperature. In other words, they are compounds that partially evaporate when they move from the liquid phase to the gas phase. As a result, it is illegal to release them directly into the atmosphere and must therefore be treated with suitable equipment.
In relation to their harmfulness, Volatile Organic Compounds (VOCs) can be classified into 3 groups based on their danger to the health of living organisms and the environment:
- Compounds extremely dangerous to health: benzene, vinyl chloride and 1,2 dichloroethane.
- Class A compounds: those that can cause significant damage to the environment: acetaldehyde, aniline, trichloroethylene, etc.
- Class B compounds: they have a lower impact on the environment. Among others, alcohols and ketones.