Even as a call was made recently to hold camps to prevent blood shortage, hundreds of units of blood are going down the drain in the city’s civic-run hospitals, as they are past the use-by date, showed data.

As per the State Blood Transfusion Council (SBTC) data, the BMC runs Lokmanya Tilak Blood Bank, popularly known as Sion blood bank, which is one of the busiest. In the past five years, it reported a wastage of 1,207 units of bloods--including 219 units of whole blood and 988 units of packed red cells.