© Terrella Consulting Limited July 2019
The Dangerous Substances and Explosive Atmospheres
The Dangerous Substances and Explosive Atmospheres Regulations
2002 (DSEAR) require employers to control the risks to safety from fire,
explosions and substances corrosive to metals.
Dangerous substances can put peoples' safety at risk from fire, explosion
and corrosion of metal. DSEAR puts duties on employers and the self-
employed to protect people from these risks to their safety in the
workplace, and to members of the public who may be put at risk by work
What are dangerous substances?
Dangerous substances are any substances used or present at work that
could, if not properly controlled, cause harm to people as a result of a fire
or explosion or corrosion of metal. They can be found in nearly all
workplaces and include such things as solvents, paints, varnishes,
flammable gases, such as liquid petroleum gas (LPG), dusts from
machining and sanding operations, dusts from foodstuffs, pressurised
gases and substances corrosive to metal.
What does DSEAR require?
find out what dangerous substances are in their workplace and what the risks are
put control measures in place to either remove those risks or, where this is not possible, control them
put controls in place to reduce the effects of any incidents involving dangerous substances
prepare plans and procedures to deal with accidents, incidents and emergencies involving dangerous substances
make sure employees are properly informed about and trained to control or deal with the risks from the dangerous substances
identify and classify areas of the workplace where explosive atmospheres may occur and avoid ignition sources (from
unprotected equipment, for example) in those areas
COMPLIANCE & SAFETY