Crews called to a reported chemical incident at Edinburgh Royal Infirmary

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Operations Control Edinburgh received the call at 10.49am and mobilised four appliances from Liberton, Newcraighall, Dalkeith and Crewe Toll fire stations along with special appliances from Marionville, Liberton, Crewe Toll and McDonald Road.

An unusual colour of water had been observed in the toilet and drainage systems within the ground floor of the premises.

Further investigation from the crews confirmed that this was a low risk chemical in its diluted form (Ammonium Oxalate) that had been diluted and washed down the sink of the Laboratory area. This was a normal and accepted daily practice carried out by Laboratory staff.

The liquid had then been observed further down the drainage line and in the toilets and showers due to the main drains being blocked.

Further advice was taken from Edinburgh Scientific Services regarding the correct method of disposal and dilution.

Localised evacuation was carried out within the hospital as a precaution. On conclusion of the incident, the site was handed back to NHS Lothian.