EH40/2005 has been updated, to its fourth edition version 2020, to include new and revised Workplace Exposure Limits (WELs) for carcinogenic substances.
Using chemicals or other hazardous substances at work can put peopleâ€™s health at risk. To prevent ill health,Â the law requires employers to control exposure toÂ suchÂ substances.Â Â
EmployersÂ mustÂ protect both employees and others who may be exposed.Â They must comply with the Control of Substances Hazardous to Health Regulations 2002 (COSHH) (as amended).Â Â
On 17thÂ January 2020,Â HSE published a revised version ofÂ EH40/2005 â€˜Workplace exposure limitsâ€™Â containing the list of workplaceÂ exposure limits (WELs) for use with the COSHH Regulations.Â
ItÂ has been updated to implement amendments to the Carcinogens and Mutagens Directive (2004/37/EC).Â ThisÂ introduces or revises 13 binding occupational exposure limit values forÂ severalÂ carcinogenic substances.Â
COSHH requires exposure to carcinogenic substances to be reduced to â€˜as low as is reasonably practicableâ€™.Â