Cesium-134

Substance: fo-c1eed8f6ddcfb6b4 Isotope
Source: bafu algorithm addition
Unit: Bq
Context: Environmental → Water → River
CAS: 13967-70-9
EC: —
Dimension: Environmental
Media: Water
Water body: River
Caesium-134
List	Version	Source flow	Name there	Why this flow
bafu	2026-v1	0dc910e7-2c20-5023-af09-92e11dd26886	Cesium-134	The CAS numbers are the same (13967-70-9); both name the same compartment.
bafu	2026-v1	d40d6cb8-aecf-55da-b25e-ae2fd0ec591d	Cesium-134	The CAS numbers are the same (13967-70-9); no flow of this substance sat in that compartment, so this one was created for the row.
Source list	Source flow	Name there	Compartment there	Match	Conversion
bafu 2026-v1	d40d6cb8-aecf-55da-b25e-ae2fd0ec591d	Cesium-134	emissions to water / river	broadMatch	—
bafu 2026-v1	0dc910e7-2c20-5023-af09-92e11dd26886	Cesium-134	emissions to water / river	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": [
    {
      "@value": "Caesium-134",
      "@language": "en",
      "@lang": "en",
      "provenance": {
        "prov:wasGeneratedBy": "carry_member_names",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "source_flow_name"
      }
    }
  ],
  "properties": {
    "https://w3id.org/chemrof/molecular_formula": {
      "@id": "https://w3id.org/chemrof/molecular_formula",
      "@value": [
        "Cs"
      ],
      "attested_by": {
        "Cs": [
          "enrich_references.pubchem_semantic",
          "rdkit_post_consensus"
        ]
      },
      "rdfs:label": "Molecular formula",
      "provenance": [
        {
          "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "CID:6335485"
          ],
          "prov:wasDerivedFrom": "pubchem.props.Molecular Formula"
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        }
      ]
    },
    "https://w3id.org/chemrof/inchi2d_key_string": {
      "@id": "https://w3id.org/chemrof/inchi2d_key_string",
      "@value": [
        "TVFDJXOCXUVLDH-OUBTZVSYSA-N"
      ],
      "attested_by": {
        "TVFDJXOCXUVLDH-OUBTZVSYSA-N": [
          "enrich_references.pubchem_semantic",
          "rdkit_post_consensus"
        ]
      },
      "rdfs:label": "InChIKey",
      "provenance": [
        {
          "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "CID:6335485"
          ],
          "prov:wasDerivedFrom": "pubchem.props.InChIKey"
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        }
      ]
    },
    "https://w3id.org/chemrof/smiles_string": {
      "@id": "https://w3id.org/chemrof/smiles_string",
      "@value": [
        "[Cs]"
      ],
      "attested_by": {
        "[134Cs]": [
          "enrich_references.pubchem_semantic",
          "rdkit_post_consensus"
        ],
        "[Cs]": [
          "enrich_references.pubchem_semantic"
        ]
      },
      "rdfs:label": "SMILES",
      "provenance": [
        {
          "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "CID:6335485"
          ],
          "prov:wasDerivedFrom": "pubchem.props.SMILES"
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        },
        {
          "prov:wasGeneratedBy": "semantic_typing.classify",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ],
          "prov:wasDerivedFrom": "smiles_string.stereochemistry_removed"
        }
      ]
    },
    "https://w3id.org/chemrof/inchi2d_string": {
      "@id": "https://w3id.org/chemrof/inchi2d_string",
      "@value": [
        "InChI=1S/Cs/i1+1"
      ],
      "attested_by": {
        "InChI=1S/Cs/i1+1": [
          "enrich_references.pubchem_semantic",
          "rdkit_post_consensus"
        ]
      },
      "rdfs:label": "InChI",
      "provenance": [
        {
          "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "CID:6335485"
          ],
          "prov:wasDerivedFrom": "pubchem.props.InChI"
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        }
      ]
    },
    "https://w3id.org/chemrof/IUPAC_name": {
      "@id": "https://w3id.org/chemrof/IUPAC_name",
      "@value": [
        "cesium-134"
      ],
      "attested_by": {
        "cesium-134": [
          "enrich_references.pubchem_semantic"
        ]
      },
      "rdfs:label": "IUPAC name",
      "provenance": {
        "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "CID:6335485"
        ],
        "prov:wasDerivedFrom": "pubchem.identifiers.IUPAC Name"
      }
    },
    "https://w3id.org/chemrof/molecular_mass": {
      "@id": "https://w3id.org/chemrof/molecular_mass",
      "rdfs:label": "Molecular mass",
      "@value": [
        133.907
      ],
      "provenance": [
        {
          "prov:wasGeneratedBy": "rdkit_pre_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        }
      ],
      "attested_by": {
        "133.907": [
          "rdkit_post_consensus",
          "rdkit_pre_consensus"
        ]
      },
      "http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL"
    },
    "https://w3id.org/chemrof/monoisotopic_mass": {
      "@id": "https://w3id.org/chemrof/monoisotopic_mass",
      "rdfs:label": "Monoisotopic mass",
      "@value": [
        133.906719
      ],
      "provenance": [
        {
          "prov:wasGeneratedBy": "rdkit_pre_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        }
      ],
      "attested_by": {
        "133.906719": [
          "rdkit_post_consensus",
          "rdkit_pre_consensus"
        ]
      },
      "http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL"
    },
    "isotope_lookup": {
      "is_kbq_candidate": true,
      "matched": true,
      "matched_on": "Cesium-134",
      "claimed_nuclide": "Cs-134",
      "resolved_nuclide": "Cs-134",
      "state_resolution": {
        "claimed_state": "",
        "selected_state": "",
        "strategy": "state_taken_as_written",
        "candidates": []
      },
      "checks": [
        {
          "check": "ground_state_does_not_decay_by_isomeric_transition",
          "passed": true,
          "detail": "β-=100%; ε=0.00030±1.2%"
        },
        {
          "check": "half_life_sources_agree",
          "passed": true,
          "detail": {
            "pubchem_days": 754.24125,
            "chemlin_days": 754.3143,
            "ratio": 1.000096852300242
          }
        }
      ],
      "reason": "",
      "source": "pubchem_pug_view_annotation_heading",
      "sources": [
        "pubchem_pug_view_annotation_heading",
        "https://www.chemlin.org"
      ],
      "isomer_resolution": {
        "wanted_nuclide": "Cs-134",
        "expected_half_life_days": 754.24125,
        "attempted_slugs": [
          "134"
        ],
        "attempted_urls": [
          "https://www.chemlin.org/isotope/cesium-134"
        ],
        "strategy": "half_life_agrees_with_pubchem",
        "selected_slug": "cesium-134",
        "selected_half_life": "2.0652(4) years",
        "selected_half_life_days": 754.3143,
        "half_life_ratio_to_pubchem": 1.000096852300242,
        "alternates": []
      }
    },
    "relationships": {
      "parent_element_flow_object_id": "fo-600754739e3e33b1",
      "relationship_type": "isotope_of"
    },
    "isotope": {
      "nuclide": "134Cs",
      "mass_number": 134,
      "atomic_mass_and_uncertainty_u": "133.906718501 ± 0.000000017",
      "half_life_and_uncertainty": "2.0650 y ± 0.0004",
      "decay_modes": "β-=100%; ε=0.00030±1.2%",
      "discovery_year": "1940",
      "specific_activity_bq_per_g": "47863590332956",
      "specific_activity_bq_per_g_value": 47863590332956.0,
      "half_life_chemlin": "2.0652(4) years",
      "chemlin_url": "https://www.chemlin.org/isotope/cesium-134",
      "isomer_resolution": {
        "wanted_nuclide": "Cs-134",
        "expected_half_life_days": 754.24125,
        "attempted_slugs": [
          "134"
        ],
        "attempted_urls": [
          "https://www.chemlin.org/isotope/cesium-134"
        ],
        "strategy": "half_life_agrees_with_pubchem",
        "selected_slug": "cesium-134",
        "selected_half_life": "2.0652(4) years",
        "selected_half_life_days": 754.3143,
        "half_life_ratio_to_pubchem": 1.000096852300242,
        "alternates": []
      },
      "symbol": "Cs",
      "isomeric_state": "",
      "metastable": false
    },
    "https://w3id.org/chemrof/nucleon_number": {
      "rdfs:label": "nucleon number",
      "@value": [
        134
      ],
      "http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/NUM",
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "isotope.mass_number"
      }
    },
    "https://w3id.org/chemrof/symbol": {
      "rdfs:label": "symbol",
      "@value": [
        "Cs"
      ],
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "isotope.symbol"
      }
    },
    "https://w3id.org/chemrof/half_life": {
      "rdfs:label": "half life",
      "@value": [
        2.065
      ],
      "http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/YR",
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "isotope.half_life_and_uncertainty"
      }
    },
    "https://w3id.org/chemrof/decay_mode": {
      "rdfs:label": "decay mode",
      "@value": [
        "β-=100%; ε=0.00030±1.2%"
      ],
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "isotope.decay_modes"
      }
    },
    "https://w3id.org/chemrof/isomeric_smiles_string": {
      "rdfs:label": "isomeric smiles string",
      "@value": [
        "[134Cs]"
      ],
      "provenance": [
        {
          "prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "CID:6335485"
          ],
          "prov:wasDerivedFrom": "pubchem.props.SMILES"
        },
        {
          "prov:wasGeneratedBy": "rdkit_post_consensus",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:hadPrimarySource": [
            "[134Cs]"
          ]
        },
        {
          "prov:wasGeneratedBy": "semantic_typing.classify",
          "prov:wasAttributedTo": "consensus-flow-list",
          "prov:wasDerivedFrom": "smiles_string"
        }
      ]
    },
    "https://w3id.org/chemrof/has_element": {
      "rdfs:label": "has element",
      "@value": [
        {
          "@id": "https://vocab.brightway.dev/flow-objects/fo-600754739e3e33b1"
        }
      ],
      "provenance": {
        "prov:wasGeneratedBy": "semantic_typing.classify",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:wasDerivedFrom": "relationships.parent_element_flow_object_id"
      }
    }
  },
  "references": [
    {
      "@id": "https://commonchemistry.cas.org/detail?cas_rn=13967-70-9",
      "provenance": {
        "prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "CID:6335485;CAS:13967-70-9"
        ],
        "prov:wasDerivedFrom": "pubchem.identifiers[13967-70-9]"
      }
    },
    {
      "@id": "https://comptox.epa.gov/dashboard/DTXSID10873984",
      "provenance": {
        "prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "CID:6335485;CAS:13967-70-9"
        ],
        "prov:wasDerivedFrom": "pubchem.identifiers[13967-70-9]"
      }
    },
    {
      "@id": "https://pubchem.ncbi.nlm.nih.gov/compound/6335485",
      "provenance": {
        "prov:wasGeneratedBy": "enrich_references.pubchem_compound",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "CID:6335485;CAS:13967-70-9"
        ],
        "prov:wasDerivedFrom": "pubchem.by_cas[13967-70-9]"
      }
    },
    "https://pubchem.ncbi.nlm.nih.gov/element/55",
    "https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/element/55/JSON",
    "https://www.chemlin.org",
    "https://www.chemlin.org/isotope/cesium-134",
    {
      "@id": "https://www.wikidata.org/wiki/Q27279319",
      "provenance": {
        "prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "CID:6335485;CAS:13967-70-9"
        ],
        "prov:wasDerivedFrom": "pubchem.identifiers[13967-70-9]"
      }
    }
  ],
  "prefLabel": [
    {
      "@value": "Cesium-134",
      "@language": "en",
      "@lang": "en",
      "provenance": {
        "prov:wasGeneratedBy": "bootstrap_labels",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "EF 3.1"
        ],
        "prov:wasDerivedFrom": "legacy name field"
      }
    }
  ],
  "@type": [
    "https://w3id.org/chemrof/Isotope",
    "https://w3id.org/chemrof/Radionuclide"
  ],
  "http://www.w3.org/2004/02/skos/core#definition": [],
  "uuid": "76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a",
  "identifier": "",
  "name": "Cesium-134",
  "source": "bafu algorithm addition",
  "cas_numbers": [
    "13967-70-9"
  ],
  "ec_numbers": [],
  "context": {
    "dimension": "Environmental",
    "media": "Water",
    "water_body": "River"
  },
  "synonyms": [],
  "lcia_methods": [],
  "unit": "Bq",
  "input_datasets": [],
  "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-rive",
  "unit_iri": "https://vocab.brightway.one/units/unit/BQ",
  "flow_object_id": "fo-c1eed8f6ddcfb6b4",
  "concept_associations": [
    {
      "@type": "xkos:ConceptAssociation",
      "xkos:sourceConcept": {
        "@id": "https://vocab.brightway.one/bafu/2026-v1/flow/d40d6cb8-aecf-55da-b25e-ae2fd0ec591d",
        "skos:prefLabel": "Cesium-134",
        "context": "emissions to water / river",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/BQ"
        },
        "skos:broadMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:d40d6cb8-aecf-55da-b25e-ae2fd0ec591d",
          "Cesium-134",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=cas:13967-70-9",
          "algorithm.flow_object_candidates=1",
          "algorithm.elementary_candidates=13",
          "algorithm.selector_reason=new-elementary-flow-created",
          "algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto",
          "algorithm.winning_score=1",
          "algorithm.tie_on_top_score=true"
        ],
        "prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:13967-70-9);flow_object_candidates(1);elementary_candidates(13);selector(new-elementary-flow-created);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/0dc910e7-2c20-5023-af09-92e11dd26886",
        "skos:prefLabel": "Cesium-134",
        "context": "emissions to water / river",
        "qudt:hasUnit": {
          "@id": "https://vocab.brightway.one/units/unit/KiloBQ"
        },
        "skos:closeMatch": {
          "@id": "https://vocab.brightway.dev/elementary-flows/76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a"
        }
      },
      "xkos:targetConcept": {
        "@id": "https://vocab.brightway.dev/elementary-flows/76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a"
      },
      "provenance": {
        "prov:wasGeneratedBy": "merge_bafu",
        "prov:wasAttributedTo": "consensus-flow-list",
        "prov:hadPrimarySource": [
          "bafu:2026-v1:0dc910e7-2c20-5023-af09-92e11dd26886",
          "Cesium-134",
          "",
          "algorithm.lookup_order=cas>ec>label",
          "algorithm.basis=cas:13967-70-9",
          "algorithm.flow_object_candidates=1",
          "algorithm.elementary_candidates=14",
          "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:13967-70-9);flow_object_candidates(1);elementary_candidates(14);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": {},
  "cas_match_labels": {},
  "general_comment": "",
  "_transformed": false,
  "_provided": {
    "name": null,
    "synonyms": [],
    "context": [],
    "cas_numbers": [],
    "ec_numbers": [],
    "unit": null
  },
  "elementary_flow_id": "76ffc802f08dc2fbd4fc4c86cff583d4f8b41b1a"
}
Cesium-134

Identity

Context

Alternative labels

Source lists

Concept associations

History

Full record

Keyboard
