The main hazardous chemicals used by Reykjavik Energy Group are asbestos, the base material used in insulation foam, chlorine, acids and bases, welding gases, geothermal gases, oil and solvents. In 2022, the use of hazardous chemicals was substantial, as in previous years. Accidents due to the use of hazardous substances are rare.

In 2020, an effort was made to decrease the number of hazardous chemicals used, succeeding in lowering their number from 900 down to around 200. Furthermore, improvements were made with regard to their storage, sorting and disposal, and an effort was made to increase employees' awareness by publishing educational material. For discussion on purchasing, handling, storage and disposal of hazardous chemicals, see video below (IS).