@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix constant: <http://qudt.org/vocab/constant/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix qkdv: <http://qudt.org/vocab/dimensionvector/> .
@prefix quantitykind: <http://qudt.org/vocab/quantitykind/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix si-quantity: <https://si-digital-framework.org/quantities/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .

quantitykind:ToxicEquivalent
  a qudt:QuantityKind ;
  dcterms:description "The toxic equivalent (TEQ) expresses the toxicity of a mixture of dioxin-like compounds (polychlorinated dibenzodioxins, dibenzofurans and biphenyls) as the mass of the most toxic congener, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), that would have the same toxicity. It is the sum over the congeners of each congener's mass multiplied by its toxic equivalency factor (TEF). The value therefore depends on the TEF scheme used (for example WHO 2005 or I-TEF), which should be stated with the quantity. TEQ values are expressed in ordinary mass units, such as ng or pg; the TEF belongs to the quantity, not to the unit, so Toxic Equivalent is organized under Mass Equivalent without being asserted commensurable with plain mass." ;
  qudt:applicableUnit unit:MicroGM ;
  qudt:applicableUnit unit:MilliGM ;
  qudt:applicableUnit unit:NanoGM ;
  qudt:applicableUnit unit:PicoGM ;
  qudt:hasDimensionVector qkdv:A0E0L0I0M1H0T0D0 ;
  qudt:informativeReference "https://en.wikipedia.org/wiki/Toxic_equivalency_factor"^^xsd:anyURI ;
  qudt:organizedUnder quantitykind:MassEquivalent ;
  rdfs:comment "Applicable units are those of quantitykind:ToxicEquivalent" ;
  rdfs:isDefinedBy <http://qudt.org/3.5.3/vocab/quantitykind> ;
  rdfs:label "Toxic Equivalent"@en ;
  skos:broader quantitykind:MassEquivalent .