Consensus flow list

Dichlorofluoromethane

08a91e70-3ddc-11dd-965c-0050c2490048

Identity

Substance
fo-767c8b62f67c5dc4 Neutral molecule
Source
EF 3.1
Unit
kg
Context
Environmental → Air → Unknown
CAS
75-43-4
EC
200-869-8

Context

Dimension
Environmental
Media
Air
Strata
Unknown

Alternative labels

10

Source lists

4
List Version Source flow Name there Why this flow
EF 3.1 08a91e70-3ddc-11dd-965c-0050c2490048 Dichlorofluoromethane The consensus list is built from this one, so this row is the flow itself rather than something matched to it.
bafu 2026-v1 a2a2ba68-fd62-5afe-927e-8b003e5195c8 Methane, Dichlorofluoro-, HCFC-21 The CAS numbers are the same (75-43-4); both name the same compartment.
ecoinvent 3.12 04a6edb8-624a-484e-8f85-d771657adae7 Dichlorofluoromethane A curator's mapping table (ecoinvent-3.11-biosphere-EF-3.1-biosphere) names this flow.
ecoinvent 3.8 04a6edb8-624a-484e-8f85-d771657adae7 Methane, Dichlorofluoro-, HCFC-21 A curator's mapping table (ecoinvent-3.8-biosphere-EF-3.1-biosphere.json) names this flow.

Concept associations

4
Source list Source flow Name there Compartment there Match Conversion
EF 3.1 08a91e70-3ddc-11dd-965c-0050c2490048 Dichlorofluoromethane Emissions/Emissions to air/Emissions to air, unspecified exactMatch —
ecoinvent 3.12 04a6edb8-624a-484e-8f85-d771657adae7 Dichlorofluoromethane air / unspecified exactMatch —
ecoinvent 3.8 04a6edb8-624a-484e-8f85-d771657adae7 Methane, Dichlorofluoro-, HCFC-21 air / unspecified exactMatch —
bafu 2026-v1 a2a2ba68-fd62-5afe-927e-8b003e5195c8 Methane, Dichlorofluoro-, HCFC-21 emissions to air / unspecified closeMatch —

Characterisation factors

6

Every implementation that says anything about this flow. Published as is what this list did with the row: where more than one implementation states a number and they agree it publishes it as agreed; where only one speaks, as sole; where they disagree it publishes nothing and asks.

Method Implementation Category Place Factor Published as
EF 3.1 European Commission — JRC Climate change — 160 —
EF 3.1 ecoinvent Centre Climate change — 160 —
EF 3.1 consensus-flow-list Climate change — 160 agreed
EF 3.1 European Commission — JRC Climate change-Fossil — 160 —
EF 3.1 ecoinvent Centre Climate change-Fossil — 160 —
EF 3.1 consensus-flow-list Climate change-Fossil — 160 agreed

This flow in the difference report

History

The change log and the PROV-O trail (2 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.

Full record

Flow JSON 
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        "@id": "https://vocab.brightway.one/ecoinvent/3.8/flow/04a6edb8-624a-484e-8f85-d771657adae7",
        "skos:prefLabel": "Methane, Dichlorofluoro-, HCFC-21",
        "context": "air / unspecified",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:exactMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-965c-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-965c-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_ecoinvent",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "ecoinvent:3.8:04a6edb8-624a-484e-8f85-d771657adae7",
          "Methane, Dichlorofluoro-, HCFC-21",
          "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/a2a2ba68-fd62-5afe-927e-8b003e5195c8",
        "skos:prefLabel": "Methane, Dichlorofluoro-, HCFC-21",
        "context": "emissions to air / unspecified",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloGM"
        },
        "skos:closeMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-965c-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/08a91e70-3ddc-11dd-965c-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:a2a2ba68-fd62-5afe-927e-8b003e5195c8",
          "Methane, Dichlorofluoro-, HCFC-21",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=cas:75-43-4",
          "algorithm.flow_object_candidates=1",
          "algorithm.elementary_candidates=13",
          "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(cas:75-43-4);flow_object_candidates(1);elementary_candidates(13);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": "bootstrap_labels",
    "name": "bootstrap_labels",
    "synonyms": "bootstrap_labels",
    "context": "default_context_mapping",
    "context_iri": "default_context_mapping",
    "unit_iri": "unit_normalization",
    "ec_numbers": "ec_cross_check",
    "properties": "normalise_property_values",
    "skos_definition": "enrich_references",
    "references": "enrich_references",
    "altLabel": "strip_catalogue_altlabels",
    "cas_match_labels": "consensus_match",
    "concept_associations": "carry_associations_onto_flows",
    "types": "link_flows_to_their_substance"
  },
  "cas_match_labels": {
    "75-43-4": "exactMatch"
  },
  "_transformed": true,
  "_provided": {
    "name": "Dichlorofluoromethane",
    "synonyms": [
      "AC1L1MDL",
      "AC1Q4HOH",
      "Algofrene type 5",
      "Arcton 7",
      "CFC-21",
      "Dichlorofluoromethane",
      "Dichloromonofluoromethane",
      "Dwuchlorofluorometan",
      "F 21",
      "FC-21",
      "FREON 21",
      "Fluorocarbon 21",
      "Fluorodichloromethane",
      "Freon F 21",
      "Freon(R) 21",
      "Genetron 21",
      "HCFC 21",
      "Halon 112",
      "Methane, dichlorofluoro-",
      "Monofluorodichloromethane",
      "R 21 (refrigerant)",
      "Racon 21",
      "Refrigerant 21",
      "dichloro-fluoromethane"
    ],
    "context": [
      "Emissions",
      "Emissions to air",
      "Emissions to air, unspecified"
    ],
    "cas_numbers": [
      "75-43-4"
    ],
    "ec_numbers": [],
    "unit": "kg"
  }
}

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