Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Concentration of pollutants-en#Sense
Concentrations de polluants-fr#Sense
Schadstoffkonzentrationen-de#Sense
Halter av förorenande ämnen-sv#Sense
Concentrazioni di inquinant-it#Sense