UHI said an NHS tenant had carried out the test which had indicated a “Legionella-related issue”.
A spokesperson said: “Although this was based on a single result and the wider situation was unclear, UHI closed the building as a precaution to allow for further investigation.”
They said it was an “isolated issue” and did not affect other nearby sites including the Life Sciences Innovation Centre, or UHI Inverness on the Inverness Campus.
Additional testing is being carried out along with a chlorinated clean of the water system.
The spokesperson added: “Until these safeguarding measures are fully in place, the building will remain closed to students, staff, tenants and visitors.”
Legionella is a bacteria that can grow in hot and cold water systems and cooling towers.
It can cause a number of diseases, the most serious being Legionnaires’ disease , externalwhich is a potentially fatal form of pneumonia.
