Brightway Flows 1.0
GitHub

bafu 2026-v1

algorithm
Name
Technetium-99m
Context
emissions to water → river
Unit
Bq
CAS
EC
Basis
label Technetium-99m
Method
algorithm
Substance
fo-6f9bc5d050c36e88
Target flow
bb2496d2b3c1df0462f05e87ebda5f1cf096f209

What it could have been

5 flows between them, 5 of them eligible after the dimension and media filter, and 5 tied on the winning score of 1.

Score Name Unit Context LCIA Flow
1 tied Technetium-99m kBq Environmental → Water → Surface water 0 13e353a4-e56c-477b-abd0-4ede4def91ad
1 tied Technetium-99m kBq Environmental → Water → Ocean 0 91d10e9e-1170-4ea9-882a-918e09b9b4a2
1 tied Technetium-99m kBq Environmental → Water → Unknown 0 d65d60a6-4842-42fe-a206-5c5e5e6e3d15
1 tied Technetium-99m kBq Environmental → Water → Long-term 0 e9623d08-fa4c-450d-9074-0ca7d87cb43e
1 tied Technetium-99m kBq Environmental → Water → Unconfined aquifer 0 aa28eafd8341dfb6cfa912584037a7b562666b0a
Everything this outcome recorded
{
  "source_uuid": "15e1d599-5ff9-5ce5-9d9c-3c047b149526",
  "source_name": "Technetium-99m",
  "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-6f9bc5d050c36e88",
  "target_name": "Technetium-99m",
  "target_elementary_flow_id": "bb2496d2b3c1df0462f05e87ebda5f1cf096f209",
  "target_context": [
    "Environmental",
    "Water",
    "River"
  ],
  "target_unit": "kBq",
  "basis": "label",
  "basis_value": "Technetium-99m",
  "selector_reason": "new-elementary-flow-created",
  "matching_method": "algorithm",
  "algorithm_details": {
    "flow_object_candidate_count": 1,
    "elementary_candidate_count": 5,
    "eligible_candidate_count": 5,
    "filtered_out_context_mismatch_count": 0,
    "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": "13e353a4-e56c-477b-abd0-4ede4def91ad",
        "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": "91d10e9e-1170-4ea9-882a-918e09b9b4a2",
        "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": "d65d60a6-4842-42fe-a206-5c5e5e6e3d15",
        "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": "e9623d08-fa4c-450d-9074-0ca7d87cb43e",
        "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": "aa28eafd8341dfb6cfa912584037a7b562666b0a",
        "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": "13e353a4-e56c-477b-abd0-4ede4def91ad",
        "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": "91d10e9e-1170-4ea9-882a-918e09b9b4a2",
        "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": "d65d60a6-4842-42fe-a206-5c5e5e6e3d15",
        "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": "e9623d08-fa4c-450d-9074-0ca7d87cb43e",
        "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": "aa28eafd8341dfb6cfa912584037a7b562666b0a",
        "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-v1:15e1d599-5ff9-5ce5-9d9c-3c047b149526",
      "Technetium-99m",
      "",
      "algorithm.lookup_order=cas>ec>label",
      "algorithm.basis=label:Technetium-99m",
      "algorithm.flow_object_candidates=1",
      "algorithm.elementary_candidates=5",
      "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:Technetium-99m);flow_object_candidates(1);elementary_candidates(5);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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