Brightway Flows 1.0
GitHub

bafu 2026-v1

algorithm
Name
Cesium-136
Context
emissions to water → river
Unit
Bq
CAS
EC
Basis
label Cesium-136
Method
algorithm
Substance
fo-58e21463843d46e8
Target flow
6c7533bf600070f9438eb3781e5fda50fd8bf50c

What it could have been

5 flows between them, 5 of them eligible after the dimension and media filter, 8 removed because the context did not agree, and 5 tied on the winning score of 1.

Score Name Unit Context LCIA Flow
1 tied Cesium-136 kBq Environmental → Water → Ocean 0 32cc3752-6556-11dd-ad8b-0800200c9a66
1 tied Cesium-136 kBq Environmental → Water → Surface water 0 4d9a8790-3ddd-11dd-9b34-0050c2490048
1 tied Cesium-136 kBq Environmental → Water → Long-term 0 4d9a8790-3ddd-11dd-9b35-0050c2490048
1 tied Cesium-136 kBq Environmental → Water → Unknown 0 4d9a8790-3ddd-11dd-9b36-0050c2490048
1 tied Cesium-136 kBq Environmental → Water → Unconfined aquifer 0 aa7cca8c792ccd01f8b899a16a150291cbbe5550
Everything this outcome recorded
{
  "source_uuid": "48ce67f9-47d2-510d-be75-de059f082510",
  "source_name": "Cesium-136",
  "source_context": [
    "emissions to water",
    "river"
  ],
  "source_context_normalized": [
    "Environmental",
    "Water",
    "River"
  ],
  "source_context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-rive",
  "source_unit": "Bq",
  "source_cas": "",
  "source_ec": "",
  "flow_object_id": "fo-58e21463843d46e8",
  "target_name": "Cesium-136",
  "target_elementary_flow_id": "6c7533bf600070f9438eb3781e5fda50fd8bf50c",
  "target_context": [
    "Environmental",
    "Water",
    "River"
  ],
  "target_unit": "kBq",
  "basis": "label",
  "basis_value": "Cesium-136",
  "selector_reason": "new-elementary-flow-created",
  "matching_method": "algorithm",
  "algorithm_details": {
    "flow_object_candidate_count": 1,
    "elementary_candidate_count": 13,
    "eligible_candidate_count": 5,
    "filtered_out_context_mismatch_count": 8,
    "required_dimension": "Environmental",
    "required_media": "Water",
    "selector_model": "exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto",
    "top_candidates": [
      {
        "elementary_flow_id": "32cc3752-6556-11dd-ad8b-0800200c9a66",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Ocean"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-ocea"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b34-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Surface water"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-suwa"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b35-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Long-term"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-lote"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b36-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Unknown"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-unkn"
      },
      {
        "elementary_flow_id": "aa7cca8c792ccd01f8b899a16a150291cbbe5550",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Unconfined aquifer"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-unaq"
      }
    ],
    "scored_candidates": [
      {
        "elementary_flow_id": "32cc3752-6556-11dd-ad8b-0800200c9a66",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Ocean"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-ocea"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b34-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Surface water"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-suwa"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b35-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Long-term"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-lote"
      },
      {
        "elementary_flow_id": "4d9a8790-3ddd-11dd-9b36-0050c2490048",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Unknown"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-unkn"
      },
      {
        "elementary_flow_id": "aa7cca8c792ccd01f8b899a16a150291cbbe5550",
        "score": 1,
        "unit_exact": false,
        "context_overlap": 2,
        "context_penalty": 1,
        "context_iri_exact": false,
        "unit": "kBq",
        "context": [
          "Environmental",
          "Water",
          "Unconfined aquifer"
        ],
        "context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-unaq"
      }
    ],
    "winning_score": 1,
    "tie_on_top_score": true,
    "source_context_original": [
      "emissions to water",
      "river"
    ],
    "source_context_normalized": [
      "Environmental",
      "Water",
      "River"
    ],
    "source_context_used_for_matching": [
      "Environmental",
      "Water",
      "River"
    ],
    "source_context_matching_basis": "normalized"
  },
  "provenance": {
    "prov:wasGeneratedBy": "merge_bafu",
    "prov:wasAttributedTo": "consensus-flow-list",
    "prov:hadPrimarySource": [
      "bafu:2026-v1:48ce67f9-47d2-510d-be75-de059f082510",
      "Cesium-136",
      "",
      "algorithm.lookup_order=cas>ec>label",
      "algorithm.basis=label:Cesium-136",
      "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(label:Cesium-136);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"
  }
}

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