There are 3 main ways airborne contaminants can enter the body.
- Inhalation (breathing) is the main entry for airborne contaminants. Lungs have a large surface area that can trap dusts and also allow contaminants to enter the blood easily.
- Ingestion (swallowing) is less likely, but may occur if workers eat, drink or smoke without washing hands after being exposed to contaminants.
- Some substances, like solvents and oils, can enter the body through the skin. You can also absorb contaminants through the eyes.