@prefix envthes: <http://vocabs.lter-europe.net/EnvThes/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .

envthes:
  skos:prefLabel "EnvThes"@en ;
  a skos:ConceptScheme .

envthes:22068
  skos:inScheme envthes: ;
  a skos:Concept ;
  skos:altLabel "demand amound of biological oxygen"@en, "BoD"@en, "BOD"@en ;
  skos:scopeNote "MS Academic Keywords"@en ;
  skos:definition "[Henderson's] measurement of the amount of organic pollution in water, measured as the amount of oxygen taken up from a sample containing a known amount of dissolved oxygen kept at 20 &deg;C for 5 days. A low BOD indicates little pollution, a high BOD indicates increased activity of heterotrophic microorganisms and thus heavy pollution."@en ;
  skos:broader envthes:20935 ;
  skos:prefLabel "biological oxygen demand"@en ;
  dc:creator <https://orcid.org/0000-0003-2195-3997> .

envthes:20935
  skos:prefLabel "variable"@en ;
  a skos:Concept ;
  skos:narrower envthes:22068 .