MORE than 10 per cent of blood donated in Scotland is wasted, it has been revealed.

Figures show that 10.38 per cent of blood donated by volunteers across Scotland is destroyed for reasons including burst packaging, fridge failure and passing expiry date.

Every month an average of 1,573 of the pint-sized donations made to the Scottish National Blood Transfusion Service (SNBTS) are sent to the incinerator without being used.

The figures revealed that 4.02 per cent of blood donated in Scotland was destroyed after passing its expiry date of 35 days.

Some 2.6 per cent of donations made were also wasted because donors failed to produce the amount of blood required for a full unit - between 482ml and 528ml.

And 2.4 per cent of blood packs - an average of 360 a month - were destroyed due to clotted donations, contaminated packs, burst packs and problems with the manufacturing and testing of blood components.

Fridge failure, over-ordering, package damage and being left out of temperature controlled storage caused 1.16 per cent to be destroyed in hospitals.

The lowest wastage came from disease screening - which accounted for just 0.2% of blood destroyed.

The NHS provided figures for June 2014 to June 2015, showing that of the 197,068 donations made over the 13 month period 22,786 were unused.

At present only 5% of the Scottish population are blood donors despite regular appeals from the SNBTS.

The service is currently reporting shortages of B- and AB- types, with a spokeswoman indicating that donation levels drop by up to 20% over the summer months.

And in June health bosses from the NHS Blood and Transplant reported that the number of new donors had dropped by 40% in the last decade.

Moira Carter, Associate Director of Donor Services for the SNBTS, said: "We are so grateful for the commitment and dedication of Scotlands donors."

She said some of the wasted blood was taken out of storage in anticipation of being used but was not required. This could happen up to six times before it was eventually discarded. She added: We also have blood on the air ambulances. For these sorts of emergencies they can end up being out and not used, and we have to replenish them."

Ronnie Robertson, 68, a lifelong donor from Edinburgh, said: Scotland's blood transfusion is a very self sufficient service - I would expect there to be some wastage and I don't feel that 10% is particularly high. Having said that, if blood is being disposed of through lack of use why can't they send excessive blood supplies down to England as they do patients to prevent the blood being dumped through lack of use. The wastage could also be prevented by enforcing more vigilant housekeeping."