How hazardous substances can get into your body (routes of entry)

Lesson Progress:

Inhalation – breathing in dust, fumes, vapours and fibres.

Absorption – contact with your skin or mucous membrane (lips, inside nose and eyelids), or open sores or wounds on your body.

Ingestion – being swallowed or eaten (usually from holding food or smoking with dirty hands).

Injection – needles, sharps or high pressure (such as water jetting), breaking the skin and forcing a substance into the body.