Chemical Oxygen Demand

Substance: fo-44ac622598b3431b Aggregate measurement
Source: EF 3.1
Unit: kg
Context: Environmental → Water → Ocean
CAS: —
EC: —

Dimension: Environmental
Media: Water
Water body: Ocean

List	Version	Source flow	Name there	Why this flow
EF	3.1	08a91e70-3ddc-11dd-97f0-0050c2490048	chemical oxygen demand	The consensus list is built from this one, so this row is the flow itself rather than something matched to it.
bafu	2026-v1	b361a423-d03c-59a7-abd2-7e8643214621	COD, Chemical Oxygen Demand	This substance answers to the name the row carries; both name the same compartment.
ecoinvent	3.12	ec76fb5c-b402-416b-825c-53e074fe7525	COD, Chemical Oxygen Demand	A curator's mapping table (ecoinvent-3.11-biosphere-EF-3.1-biosphere) names this flow.
ecoinvent	3.8	ec76fb5c-b402-416b-825c-53e074fe7525	COD, Chemical Oxygen Demand	A curator's mapping table (ecoinvent-3.8-biosphere-EF-3.1-biosphere.json) names this flow.

Source list	Source flow	Name there	Compartment there	Match	Conversion
EF 3.1	08a91e70-3ddc-11dd-97f0-0050c2490048	chemical oxygen demand	Emissions/Emissions to water/Emissions to sea water	exactMatch	—
ecoinvent 3.12	ec76fb5c-b402-416b-825c-53e074fe7525	COD, Chemical Oxygen Demand	water / ocean	exactMatch	—
ecoinvent 3.8	ec76fb5c-b402-416b-825c-53e074fe7525	COD, Chemical Oxygen Demand	water / ocean	exactMatch	—
bafu 2026-v1	b361a423-d03c-59a7-abd2-7e8643214621	COD, Chemical Oxygen Demand	emissions to water / ocean	closeMatch	—

The change log and the PROV-O trail (0 consensus changes)

Open the changes page

These are the heaviest sections of this page and the least often read, so the page does not pay for them until you ask.

Flow JSON

{
  "altLabel": [],
  "properties": {
    "https://vocab.brightway.one/terms/expressedAs": {
      "rdfs:label": "expressed as",
      "@value": [
        {
          "@id": "https://vocab.brightway.dev/flow-objects/fo-fb432c4d5067c1b9"
        }
      ],
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "aggregate_measurements.expressed_as"
      }
    }
  },
  "references": [],
  "prefLabel": [
    {
      "@value": "Chemical Oxygen Demand",
      "@language": "en",
      "source": {
        "prov:wasGeneratedBy": "bootstrap_labels",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "EF 3.1"
        ],
        "prov:wasDerivedFrom": "legacy name field"
      }
    }
  ],
  "@type": [
    "https://vocab.brightway.one/terms/AggregateMeasurement"
  ],
  "uuid": "08a91e70-3ddc-11dd-97f0-0050c2490048",
  "identifier": "08a91e70-3ddc-11dd-97f0-0050c2490048",
  "source": "EF 3.1",
  "cas_numbers": [],
  "ec_numbers": [],
  "context": {
    "dimension": "Environmental",
    "media": "Water",
    "water_body": "Ocean"
  },
  "synonyms": [],
  "lcia_methods": [],
  "unit": "kg",
  "input_datasets": [
    "EF 3.1"
  ],
  "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-ocea",
  "unit_iri": "https://vocab.brightway.one/units/unit/KiloGM",
  "flow_object_id": "fo-44ac622598b3431b",
  "concept_associations": [
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/ef/3.1/flow/08a91e70-3ddc-11dd-97f0-0050c2490048",
        "skos:prefLabel": "chemical oxygen demand",
        "context": "Emissions/Emissions to water/Emissions to sea water",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:exactMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "build_concept_associations",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "https://eplca.jrc.ec.europa.eu/permalink/EF3_1/EF-v3.1.zip"
        ]
      }
    },
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/ecoinvent/3.12/flow/ec76fb5c-b402-416b-825c-53e074fe7525",
        "skos:prefLabel": "COD, Chemical Oxygen Demand",
        "context": "water / ocean",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:exactMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_ecoinvent",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "ecoinvent:3.12:ec76fb5c-b402-416b-825c-53e074fe7525",
          "COD, Chemical Oxygen Demand",
          "ecoinvent-3.11-biosphere-EF-3.1-biosphere"
        ],
        "prov:wasDerivedFrom": "randonneur_replace_table:prepared_mapping"
      }
    },
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/ecoinvent/3.8/flow/ec76fb5c-b402-416b-825c-53e074fe7525",
        "skos:prefLabel": "COD, Chemical Oxygen Demand",
        "context": "water / ocean",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:exactMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_ecoinvent",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "ecoinvent:3.8:ec76fb5c-b402-416b-825c-53e074fe7525",
          "COD, Chemical Oxygen Demand",
          "ecoinvent-3.8-biosphere-EF-3.1-biosphere.json"
        ],
        "prov:wasDerivedFrom": "randonneur_replace_table:prepared_mapping"
      }
    },
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/bafu/2026-v1/flow/b361a423-d03c-59a7-abd2-7e8643214621",
        "skos:prefLabel": "COD, Chemical Oxygen Demand",
        "context": "emissions to water / ocean",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:closeMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-97f0-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:b361a423-d03c-59a7-abd2-7e8643214621",
          "COD, Chemical Oxygen Demand",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=label:COD, Chemical Oxygen Demand; Chemical Oxygen Demand",
          "algorithm.flow_object_candidates=1",
          "algorithm.elementary_candidates=5",
          "algorithm.selector_reason=exact-context-iri-match",
          "algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
        ],
        "prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(label:COD, Chemical Oxygen Demand; Chemical Oxygen Demand);flow_object_candidates(1);elementary_candidates(5);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
      }
    }
  ],
  "_sources": {
    "prefLabel": "normalize_name_case",
    "name": "bootstrap_labels",
    "context": "default_context_mapping",
    "context_iri": "default_context_mapping",
    "unit_iri": "unit_normalization",
    "concept_associations": "carry_associations_onto_flows",
    "types": "link_flows_to_their_substance",
    "properties": "link_flows_to_their_substance"
  },
  "general_comment": "The individual substances are to be inventoried, wherever possible. Highly impacting substances may not be \"hidden\" via using this sum-indicator. Reference elementary flow of the International Reference Life Cycle Data System (ILCD).",
  "_transformed": true,
  "_provided": {
    "name": "chemical oxygen demand",
    "synonyms": [],
    "context": [
      "Emissions",
      "Emissions to water",
      "Emissions to sea water"
    ],
    "cas_numbers": [],
    "ec_numbers": [],
    "unit": "kg"
  }
}

Chemical Oxygen Demand

Identity

Context

Source lists

Concept associations

History

Full record

Keyboard