Principles of Airborne Contaminants

Describe the chemical routes of entry into body

Differentiate between gas, vapour and particulates

Identify the industrial process that contribute to airborne contamination

Describe the physicochemical properties

What is the definition of gas?

• A state of matter which completely fills the region in which it is contained.

• A solid particle suspended in air.

• A collection of airborne particulates and gases emitted when a material undergoes combustion.

• A dispersion of liquid particles in air.

What is the definition of vapour?

• The gaseous form of a substance which is a liquid or a solid at room temperature and pressure.

• A state of matter which completely fills the region in which it is contained.

• A solid particle suspended in air.

• A collection of airborne particulates and gases emitted when a material undergoes combustion.

What are dusts?

• Solid particles suspended in air, generated by mechanical processes.

• The gaseous form of a substance which is a liquid or a solid at room temperature and pressure.

• A collection of airborne particulates and gases emitted when a material undergoes combustion.

• A dispersion of liquid particles in air.

What are fumes?

• Solid particles formed as a result of the condensation of the gaseous state of a solid which have been heated to a very high temperature.

• A state of matter which completely fills the region in which it is contained.

• A solid particle suspended in air.

• A dispersion of liquid particles in air.

What are mists?

• Dispersion of liquid particles in air, normally generated from processes such as spraying.

• A state of matter which completely fills the region in which it is contained.

• A solid particle suspended in air.

• A collection of airborne particulates and gases emitted when a material undergoes combustion.

What is smoke?

• A collection of airborne particulates and gases emitted when a material undergoes combustion.

• A state of matter which completely fills the region in which it is contained.

• A solid particle suspended in air.

• A dispersion of liquid particles in air.