Strontium-90

Substance: fo-33c131efe4e15a47 Isotope
Source: EF 3.1
Unit: kBq
Context: Environmental → Water → Ocean
CAS: 10098-97-2
EC: —

Dimension: Environmental
Media: Water
Water body: Ocean

List	Version	Source flow	Name there	Why this flow
EF	3.1	fe0acd60-3ddc-11dd-9f07-0050c2490048	strontium-90	The consensus list is built from this one, so this row is the flow itself rather than something matched to it.
bafu	2026-v1	09b96c6c-c2ad-5fbc-94f7-680842a5f896	Strontium-90	The CAS numbers are the same (10098-97-2); both name the same compartment.
bafu	2026-v1	500a2a28-7f6c-5329-a705-415e679f1383	Strontium-90	The CAS numbers are the same (10098-97-2); both name the same compartment.
ecoinvent	3.12	48524bfc-be91-406e-986b-9550744e0360	Strontium-90	A curator's mapping table (ecoinvent-3.11-biosphere-EF-3.1-biosphere) names this flow.
ecoinvent	3.8	48524bfc-be91-406e-986b-9550744e0360	Strontium-90	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	fe0acd60-3ddc-11dd-9f07-0050c2490048	strontium-90	Emissions/Emissions to water/Emissions to sea water	exactMatch	—
ecoinvent 3.12	48524bfc-be91-406e-986b-9550744e0360	Strontium-90	water / ocean	exactMatch	—
ecoinvent 3.8	48524bfc-be91-406e-986b-9550744e0360	Strontium-90	water / ocean	exactMatch	—
bafu 2026-v1	09b96c6c-c2ad-5fbc-94f7-680842a5f896	Strontium-90	emissions to water / ocean	closeMatch	—
bafu 2026-v1	500a2a28-7f6c-5329-a705-415e679f1383	Strontium-90	emissions to water / ocean	closeMatch	—

consensus-flow-list 1
European Commission — JRC 1
ecoinvent Centre 1

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	Ionising radiation, human health	—	1.9300e-04	—
EF 3.1	ecoinvent Centre	Ionising radiation, human health	—	1.9300e-04	—
EF 3.1	consensus-flow-list	Ionising radiation, human health	—	1.9300e-04	agreed

This flow in the difference report

The change log and the PROV-O trail (1 consensus changes)

Open the changes page

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Flow JSON

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        "@id": "https://vocab.brightway.one/bafu/2026-v1/flow/09b96c6c-c2ad-5fbc-94f7-680842a5f896",
        "skos:prefLabel": "Strontium-90",
        "context": "emissions to water / ocean",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/BQ"
        },
        "skos:closeMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-9f07-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-9f07-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:09b96c6c-c2ad-5fbc-94f7-680842a5f896",
          "Strontium-90",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=cas:10098-97-2",
          "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:10098-97-2);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"
      }
    },
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/bafu/2026-v1/flow/500a2a28-7f6c-5329-a705-415e679f1383",
        "skos:prefLabel": "Strontium-90",
        "context": "emissions to water / ocean",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloBQ"
        },
        "skos:closeMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-9f07-0050c2490048"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-9f07-0050c2490048"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:500a2a28-7f6c-5329-a705-415e679f1383",
          "Strontium-90",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=cas:10098-97-2",
          "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:10098-97-2);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": "normalize_name_case",
    "name": "bootstrap_labels",
    "synonyms": "bootstrap_labels",
    "context": "default_context_mapping",
    "context_iri": "default_context_mapping",
    "unit_iri": "unit_normalization",
    "properties": "link_flows_to_their_substance",
    "skos_definition": "enrich_references",
    "references": "enrich_references",
    "cas_match_labels": "consensus_match",
    "concept_associations": "carry_associations_onto_flows",
    "types": "link_flows_to_their_substance"
  },
  "cas_match_labels": {
    "10098-97-2": "exactMatch"
  },
  "_transformed": true,
  "_provided": {
    "name": "strontium-90",
    "synonyms": [
      "90Sr",
      "AC1NUOFQ",
      "Sr-90",
      "Strontium, isotope of mass 90"
    ],
    "context": [
      "Emissions",
      "Emissions to water",
      "Emissions to sea water"
    ],
    "cas_numbers": [
      "10098-97-2"
    ],
    "ec_numbers": [],
    "unit": "kBq"
  }
}

Strontium-90

Identity

Context

Source lists

Concept associations

Characterisation factors

History

Full record

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