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Hazardous Substances are used in many workplaces and take many different forms. Solids, liquids, gases, mists and fumes can be present in the workplace.
Exposure to hazardous substances can affect the body in many different ways:-
Skin contact,
inhalation and
ingestion
In legislation, hazardous substances are defined in a number of ways. In The Control of Substances Hazardous to Health Regulations 2002 (COSHH), for example, they are those substances classified as toxic, very toxic, corrosive, harmful or irritant. Biological agents and dusts in substantial concentrations are also classified as hazardous substances.
Hazardous substances can cause short- and long-term health problems. They can cause serious ill health including cancers, dermatitis and asthma.
Anyone who works with or is exposed to hazardous substances is at risk. Those exposed to more hazardous substances for long periods of time are more at risk than those exposed for short periods or to less hazardous substances.
The aim should be to prevent exposure to hazardous substances. Where exposure cannot be avoided, then adequate controls should be put in place.
The risks associated with the hazardous substances present in your workplace must be assessed. The employer has the responsibility for the risk assessment. They may call on assistance if it is required.
The person conducting the assessment must have a knowledge and understanding of the process and the requirements of the COSHH regulations. Make use of the existing knowledge within the workplace before deciding whether outside assistance is needed.
Most simple assessments can be carried out in-house:
Make a list of all the substances and products in the workplace
Gather as much information as you can on each substance and the risks associated with them
Look at information on labels, in suppliers’ catalogues and material safety data sheets.
Associated Legislation
The Control of Substances Hazardous to Health Regulations (COSHH) 2002
These regulations apply to activities involving the use of Hazardous Substances.
Substances hazardous to health are defined under COSHH as those that are: ‘Very Toxic, Toxic, Corrosive, Harmful or Irritant.’