Answer:

A hazardous substance is any substance that has one or more inherent hazardous property. This includes flammability, EXPLOSIVENESS, toxicity, and the ability to oxidise.

The CoSHH Regulations cover most substances that are hazardous to health - and these substances can take a variety of different forms. These substances include:

chemicals

products containing chemicals

fumes

dust

vapours

mists

nanotechnology

gases and asphyxiating gases

biological agents

germs that cause diseases

However, as these substances are covered by their own UNIQUE set of regulations, the following substances are not covered by CoSHH:

Asbestos

Lead and

Radioactive substances

Who is at risk?

Simply, those EXPOSED for longer periods of time to a substance considered ‘hazardous to health’ are GENERALLY more at risk than those exposed for short periods or to less hazardous substances.

However, certain occupations may expose workers to hazardous substances depending on their work activity. For example, cleaners are often exposed to hazardous substances in cleaning products like bleach and other solvents.

Hope this helps, you can GET rid of the last two paragraphs after 'who is at risk' if you want.