@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:54939_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "The highest exposure level at which there are no biologically significant increases in the frequency or severity of adverse effect between the exposed population and its appropriate control; some effects may be produced at this level, but they are not considered adverse or precursors of adverse effects."@en, "Nivel más alto de exposición en los cuales no hay aumentos biológicamente significativos en la frecuencia o severidad de los efectos adversos entre la población expuesta y su control adecuado, algunos efectos pueden ser producidos a este nivel, pero no se consideran negativos o precursores de los efectos adversos."@es ;
  dc:source "US Environmental Protection Agency" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:54939
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2017-10-11"^^xsd:date ;
  skos:altLabel "NOEL (no observed effect level)"@en, "NOAEL (no observed adverse effect level)"@en, "NOEC (no observed adverse effect level)"@en, "no observable effect concentration"@en, "no-observed-adverse-effect level"@en, "no observed effect level"@en, "no-observed-effect level"@en ;
  skos:broader nalt:3967 ;
  skos:definition nalt:54939_def ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-awic> ;
  skos:prefLabel "nivel sin efecto adverso observado"@es, "no observed adverse effect level"@en ;
  skos:related nalt:50478, nalt:136610 ;
  ns0:marc001 "25438" .

nalt:50478
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "lowest observed effect level"@en, "nivel de mínimo efecto adverso observado"@es ;
  skos:related nalt:54939 .

nalt:136610
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "exposición ambiental"@es, "environmental exposure"@en ;
  skos:related nalt:54939 .

nalt:3967
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:54939 ;
  skos:prefLabel "toxicidad"@es, "toxicity"@en .