[Reduction of residual pollution -- essential problem of the Sewage-Emission Law].
D005860:Germany, West; D007878:Legislation as Topic; D012722:Sewage; D014876:Water Pollution / Q000517:prevention & control*
D012722:Sewage
"Halbierung des Restschmutzes" -- Kernproblem des Abwasserabgabengesetzes