How much sewage sludge has been produced in Scotland, on average, in each of the last five years from sewage processors (a) within and (b) …

Precise information on the amount of sewage sludge produced in Scotland is not held centrally. This is a matter for the operators concerned (principally Scottish Water). “Sewage sludge” is simply a term for a product of waste water treatment. No sewage sludge, therefore, is produced in Scotland by treatmentoutwith Scotland, though it is possible that sewage sludge produced outwithScotland may be subjected to further treatment within Scotland. Again, this would be a matter for operators of sludge treatment facilities.