Uranium-238
17f9133725737ca15c8039f3401907c3ccbc2f98
Identity
- Substance
- fo-bbc90a2dbdb048ca Isotope
- Source
- ecoinvent algorithm addition
- Unit
- kBq
- Context
- Environmental → Water → Unconfined aquifer
- CAS
- 24678-82-8
- EC
- —
Context
- Dimension
- Environmental
- Media
- Water
- Water body
- Unconfined aquifer
Source lists
5| List | Version | Source flow | Name there | Why this flow |
|---|---|---|---|---|
| agribalyse | 3.2 | 606db44d-eb69-51b0-af44-0bdcf4720334 | Uranium-238 | The CAS numbers are the same (24678-82-8); both name the same compartment. |
| bafu | 2026-v1 | 1b5acbc4-9c26-5f17-a68a-2ec9b0b96e10 | Uranium-238 | The CAS numbers are the same (24678-82-8); both name the same compartment. |
| bafu | 2026-v1 | e9d389c5-07d4-5fda-a61c-750d77dd188f | Uranium-238 | The CAS numbers are the same (24678-82-8); both name the same compartment. |
| ecoinvent | 3.12 | 16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017 | Uranium-238 | The CAS numbers are the same (24678-82-8); no flow of this substance sat in that compartment, so this one was created for the row. |
| ecoinvent | 3.8 | 16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017 | Uranium-238 | The CAS numbers are the same (24678-82-8); both name the same compartment. |
Concept associations
5| Source list | Source flow | Name there | Compartment there | Match | Conversion |
|---|---|---|---|---|---|
| ecoinvent 3.12 | 16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017 | Uranium-238 | water / ground- | exactMatch | — |
| ecoinvent 3.8 | 16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017 | Uranium-238 | water / ground- | closeMatch | — |
| bafu 2026-v1 | e9d389c5-07d4-5fda-a61c-750d77dd188f | Uranium-238 | emissions to water / groundwater | closeMatch | — |
| bafu 2026-v1 | 1b5acbc4-9c26-5f17-a68a-2ec9b0b96e10 | Uranium-238 | emissions to water / groundwater | closeMatch | — |
| agribalyse 3.2 | 606db44d-eb69-51b0-af44-0bdcf4720334 | Uranium-238 | Emissions to water / groundwater | closeMatch | — |
Characterisation factors
3- consensus-flow-list 1
- GreenDelta 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 | ecoinvent Centre | Ionising radiation, human health | — | 0.107 | — |
| EF 3.1 | GreenDelta | Ionising radiation, human health | — | 0.107 | — |
| EF 3.1 | consensus-flow-list | Ionising radiation, human health | — | 0.107 | restated |
History
The change log and the PROV-O trail (0 consensus changes)
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
{
"altLabel": [],
"properties": {
"isotope_lookup": {
"is_kbq_candidate": true,
"matched": true,
"matched_on": "Uranium-238",
"claimed_nuclide": "U-238",
"resolved_nuclide": "U-238",
"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": "IS=99.2742±1%; α=100%; SF=5.44e-5±0.7%; 2β-=2.2e-10±0.3%"
},
{
"check": "half_life_sources_agree",
"passed": true,
"detail": {
"pubchem_days": 1630110750000.0,
"chemlin_days": 1631937000000.0,
"ratio": 1.001120322652924
}
}
],
"reason": "",
"source": "pubchem_pug_view_annotation_heading",
"sources": [
"pubchem_pug_view_annotation_heading",
"https://www.chemlin.org"
],
"isomer_resolution": {
"wanted_nuclide": "U-238",
"expected_half_life_days": 1630110750000.0,
"attempted_slugs": [
"238"
],
"attempted_urls": [
"https://www.chemlin.org/isotope/uranium-238"
],
"strategy": "half_life_agrees_with_pubchem",
"selected_slug": "uranium-238",
"selected_half_life": "4.468(6)e9 years",
"selected_half_life_days": 1631937000000.0,
"half_life_ratio_to_pubchem": 1.001120322652924,
"alternates": []
}
},
"relationships": {
"parent_element_flow_object_id": "fo-93d10c394b58394e",
"relationship_type": "isotope_of"
},
"isotope": {
"nuclide": "238U",
"mass_number": 238,
"atomic_mass_and_uncertainty_u": "238.050786936 ± 0.000001601",
"half_life_and_uncertainty": "4.463 Gy ± 0.003",
"decay_modes": "IS=99.2742±1%; α=100%; SF=5.44e-5±0.7%; 2β-=2.2e-10±0.3%",
"discovery_year": "1896",
"specific_activity_bq_per_g": "12436.520359891",
"specific_activity_bq_per_g_value": 12436.520359891,
"half_life_chemlin": "4.468(6)e9 years",
"chemlin_url": "https://www.chemlin.org/isotope/uranium-238",
"isomer_resolution": {
"wanted_nuclide": "U-238",
"expected_half_life_days": 1630110750000.0,
"attempted_slugs": [
"238"
],
"attempted_urls": [
"https://www.chemlin.org/isotope/uranium-238"
],
"strategy": "half_life_agrees_with_pubchem",
"selected_slug": "uranium-238",
"selected_half_life": "4.468(6)e9 years",
"selected_half_life_days": 1631937000000.0,
"half_life_ratio_to_pubchem": 1.001120322652924,
"alternates": []
},
"symbol": "U",
"isomeric_state": "",
"metastable": false
},
"https://w3id.org/chemrof/nucleon_number": {
"rdfs:label": "nucleon number",
"@value": [
238
],
"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": [
"U"
],
"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": [
4463000000.0
],
"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": [
"IS=99.2742±1%; α=100%; SF=5.44e-5±0.7%; 2β-=2.2e-10±0.3%"
],
"provenance": {
"prov:wasGeneratedBy": "semantic_typing.classify",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:wasDerivedFrom": "isotope.decay_modes"
}
},
"https://w3id.org/chemrof/has_element": {
"rdfs:label": "has element",
"@value": [
{
"@id": "https://vocab.brightway.dev/flow-objects/fo-93d10c394b58394e"
}
],
"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=24678-82-8",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.consensus_cas_link",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"24678-82-8"
],
"prov:wasDerivedFrom": "cas_numbers"
}
},
"https://pubchem.ncbi.nlm.nih.gov/element/92",
"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/element/92/JSON",
"https://www.chemlin.org",
"https://www.chemlin.org/isotope/uranium-238"
],
"prefLabel": [
{
"@value": "Uranium-238",
"@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": "17f9133725737ca15c8039f3401907c3ccbc2f98",
"identifier": "",
"name": "Uranium-238",
"source": "ecoinvent algorithm addition",
"cas_numbers": [
"24678-82-8"
],
"ec_numbers": [],
"context": {
"dimension": "Environmental",
"media": "Water",
"water_body": "Unconfined aquifer"
},
"synonyms": [],
"lcia_methods": [],
"unit": "kBq",
"input_datasets": [],
"context_iri": "https://vocab.brightway.one/flow-contexts/envi-wate-unaq",
"unit_iri": "https://vocab.brightway.one/units/unit/KiloBQ",
"flow_object_id": "fo-bbc90a2dbdb048ca",
"concept_associations": [
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ecoinvent/3.12/flow/16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017",
"skos:prefLabel": "Uranium-238",
"context": "water / ground-",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloBQ"
},
"skos:exactMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.12:16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017",
"Uranium-238",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:24678-82-8",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=12",
"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=3",
"algorithm.tie_on_top_score=true"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:24678-82-8);flow_object_candidates(1);elementary_candidates(12);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/ecoinvent/3.8/flow/16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017",
"skos:prefLabel": "Uranium-238",
"context": "water / ground-",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloBQ"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.8:16cd83f0-c5c0-4b6f-8dd0-26d4e3b9a017",
"Uranium-238",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:24678-82-8",
"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:24678-82-8);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/e9d389c5-07d4-5fda-a61c-750d77dd188f",
"skos:prefLabel": "Uranium-238",
"context": "emissions to water / groundwater",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/BQ"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
},
"provenance": {
"prov:wasGeneratedBy": "merge_bafu",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"bafu:2026-v1:e9d389c5-07d4-5fda-a61c-750d77dd188f",
"Uranium-238",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:24678-82-8",
"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:24678-82-8);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/1b5acbc4-9c26-5f17-a68a-2ec9b0b96e10",
"skos:prefLabel": "Uranium-238",
"context": "emissions to water / groundwater",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloBQ"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
},
"provenance": {
"prov:wasGeneratedBy": "merge_bafu",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"bafu:2026-v1:1b5acbc4-9c26-5f17-a68a-2ec9b0b96e10",
"Uranium-238",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:24678-82-8",
"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:24678-82-8);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/agribalyse/3.2/flow/606db44d-eb69-51b0-af44-0bdcf4720334",
"skos:prefLabel": "Uranium-238",
"context": "Emissions to water / groundwater",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloBQ"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/17f9133725737ca15c8039f3401907c3ccbc2f98"
},
"provenance": {
"prov:wasGeneratedBy": "merge_agribalyse",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"agribalyse:3.2:606db44d-eb69-51b0-af44-0bdcf4720334",
"Uranium-238",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:24678-82-8",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=15",
"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:24678-82-8);flow_object_candidates(1);elementary_candidates(15);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": "17f9133725737ca15c8039f3401907c3ccbc2f98"
}
Something wrong here?
A flow can be wrong in three ways, and they are decided differently. Pick the one that matches what you are looking at.
- A row from my list should not reach this flow
- This flow is not that chemical
- The compartment or the unit is wrong
- One of these characterisation factors cannot be this substance's
You do not need to run a build or clone anything. Name the row and say what your evidence is; the measurement is done for you. How contributing works