Explain that construction workers are exposed to many different types of hazardous substances such as dust, lead or cement. Workers need to be aware of the substances they are working with, how these could get into the body and what the potential health effects are

Explain how to identify and safely handle these substances (ref. COSHH)

Explain different types of substances and their acute and chronic ill health effects, explain the routes of entry into the body

Explain Material Safety Data Sheet and how it is used to carry out effective risk assessment compliant with COSHH