The current situation on the quantities and disposal methods of sewage slud
ge in European Union is discussed, together with the trends up to 2005 and
the future sludge disposal possibilities. The problems relating to the meth
ods currently used in Greece and the requirement for land suitable for the
safe agricultural application of sewage sludge are evaluated. This concept
will be important to the decisionmakers for the purpose of the disposal of
sewage sludge in the future. Soil measurements in lands used for sludge dis
posal in western and southern Greece show that some soils have been already
polluted by heavy metals and should be abandoned while others need careful
monitoring until their saturation.