Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Λάσπη λαδιού-el#Sense
Aceite residual-es#Sense
Morchia-it#Sense
Öljylieju-fi#Sense
Black sludge-nl#Sense
Öljyliete-fi#Sense
Olieslam-da#Sense
Lamas de óleo-pt#Sense
Oily slime-en#Sense
Oljeslam-sv#Sense
Oelschlamm-de#Sense
Boue d'huile-fr#Sense
Sludge-nl#Sense