Incident at Gorlaeus Building Laboratory: Precautionary Measures for All Building Users
On the morning of Monday, December 2, at around 8.30 AM, a hazardous substance was spilled in a laboratory in the DM wing of the Gorlaeus Building. The substance involved was the dry chemical triphosgene, which sublimates into phosgene gas.
What does this mean?
The substance was spilled only in very small quantities, and the laboratory and the surrounding area have been thoroughly cleaned. Measurements taken at approximately 10.45 AM showed no traces of hazardous substances. The likelihood of the substance spreading is extremely low. However, as a precaution and on the advice of the hazardous materials specialist from the fire department, the following measures are being implemented or advised:
- Water trays at building exits
When leaving the Gorlaeus Building, walk through the water trays provided to rinse your shoes. - Rinse your shoes at home
If you are unable to use the water trays, rinse your shoes at home. Tap water is sufficient.
Questions?
On Monday, December 2, you can send your questions to amd@science.leidenuniv.nl. Colleagues will respond as quickly as possible. Media inquiries will be referred to the spokespersons of Leiden University.