New and revised Workplace Exposure Limits

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 people’s health at risk. To prevent ill health, the law requires employers to control exposure to such substances.  

Employers must protect both employees and others who may be exposed.  They must comply with the Control of Substances Hazardous to Health Regulations 2002 (COSHH) (as amended).  

On 17th January 2020, HSE published a revised version of EH40/2005 ‘Workplace exposure limits’ containing the list of workplace exposure limits (WELs) for use with the COSHH Regulations. 

It has been updated to implement amendments to the Carcinogens and Mutagens Directive (2004/37/EC).  This introduces or revises 13 binding occupational exposure limit values for several carcinogenic substances. 

COSHH requires exposure to carcinogenic substances to be reduced to ‘as low as is reasonably practicable’.