What are "vapors" in the context of hazardous materials?

In the context of hazardous materials, "vapors" refer specifically to the gaseous forms of substances that can be harmful. Vapors are created when a liquid evaporates, turning into gas at temperatures that are lower than the boiling point. Many liquids can release vapors which may carry toxic, flammable, or otherwise hazardous properties.

Understanding vapors is essential in the field of hazardous materials, as they can present significant risks to health and safety, especially if inhaled or contacted. For example, certain chemical vapors may cause respiratory issues or other health hazards when present in the air at certain concentrations.

The other options refer to different states or forms of matter that do not align with the definition of vapors. Solid particles released into the air describe a different concept, and liquid droplets suspended in the air represent aerosols, which are distinct from vapors. Compressed gases in pressurized containers are gaseous substances but are not vaporized from liquids and also have different handling and safety considerations. Focusing on vapors as gaseous forms of harmful substances highlights their potential danger in hazardous material situations.