How hazardous substances can affect your health

Lesson Progress:

Immediate (acute) – for example, burns to the skin from acids or chemicals.

Long-term (chronic) – for example, developing asthma from wood dust, or cancer from asbestos exposure.

Disease – for example, through contact with contaminated soil or water, or a skin sensitiser (such as cement) causing dermatitis.

Sensitising – over a period of time you start having more serious allergic reactions to a lower level or less exposure to the substance, and/or a quicker reaction after exposure.