European Parliament Adopts New Exposure Limits for Lead and Diisocyanates

On 7 February 2024, Members of the European Parliament (MEPs) approved new rules to minimise exposure to harmful substances in the workplace. The approved rules include updated exposure limits for lead, the first in four decades, and the introduction of the first-ever limits for diisocyanates.

In the European Union approximately 50,000 to 150,000 workers are exposed to lead each year and 4.2 million workers are exposed to diisocyanates. The recently approved rules legislation, aim to improve the protection of workers' health by reducing the exposure limits for these substances.

Lead and diisocyanates are widely used in building renovation, the manufacture of batteries and wind turbines, and to make electric vehicles lighter. The new exposure will protect those actively involved in the transition to greener practices.

Stricter Limits on Lead Exposure

The rules address the health effects of lead exposure which affects fertility, foetal development, and causes damage to the nervous system and kidneys.

Lead exposure limits were last updated in 1982. The new occupational exposure limit value for lead is set at 0.03 mg/m3, which is less than 25 % of the current value. A biological limit value of 15 µg/100 ml will also be established.

The European Commission will review these limit values within five years, paying particular attention to the protection of female workers of childbearing age, taking the latest scientific data into account.

First Exposure Limits for Diisocyanates

Diisocyanates, known to cause occupational asthma and allergic reactions, will now have occupational exposure limits. These are set at 6 µg NCO/m3 for an eight-hour working day and 12 µg NCO/m3 for short-term exposure. The European Commission plans to review these limits by 2029.

Protecting Workers with Past Exposure to Lead

Recognising the challenges posed by past exposure to lead, the legislation requires regular medical check-ups for workers with high blood lead levels. This proactive approach ensures their ongoing health and assesses their fitness to perform tasks involving lead exposure.

Next Steps: Council Endorsement and Publication

Formal adoption by the Council is the next step before the regulations can enter into force. The approved text will then be published in the EU Official Journal, marking a crucial step in the implementation of improved workplace safety measures.