Explosive atmospheres can be formed in workplaces where dangerous substances (such as flammable and explosive materials) are manufactured, stored, moved, used or transported and where dusts are formed. An explosive atmosphere provides the potential for fire and explosion risk if not contained.

Materials that are capable of forming flammable or explosive atmospheres are classed as dangerous substances and are defined in the Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR). This topic describes the DSEAR provisions in place to protect employees and other workers from explosions associated with dangerous substances.

Workflow — DSEAR risk assessment

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