{
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 "constitutionVersion": "1.0.0",
 "createdAt": "2026-08-12T00:00:00Z",
 "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.",
 "entity": {
  "type": "project",
  "id": "bogota-rmcab-air-quality",
  "title": "RMCAB Air Quality Network & IBOCA Alert Phases",
  "canonicalUrl": "https://1001smartcities.org/projects/bogota-rmcab-air-quality/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T19:03:10Z",
   "effectiveAt": "2026-07-26",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 8 source dossiers.",
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    "label": "AI-assisted evidence preparation",
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   },
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    "by": null,
    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
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     "operation": "add",
     "path": "/evidencePassport",
     "summary": "Added claim-level evidence mapping and source dossiers."
    },
    {
     "operation": "add",
     "path": "/revisionHistory",
     "summary": "Established a permanent, hash-addressed baseline revision."
    }
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    "assurance": {
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      "schema",
      "publication-diff-contract",
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      "source-reference-resolution",
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      "snapshot-hash"
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     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "peer-reviewed",
     "timeline": {
      "started": 1997,
      "ended": null
     }
    },
    "governance": {
     "operator": "Secretaría Distrital de Ambiente (SDA)",
     "actorTypes": [
      "city-government"
     ],
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     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
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      "field": "impact",
      "text": "A peer-reviewed analysis of the network's first decade found only five stations held at least 50% valid PM10 data, with most gaps caused by equipment outages rather than unreliable readings",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
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      "supportNote": null,
      "caveat": "The network has since grown from 14 automatic stations to 20, an operator figure from 2026.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
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      "title": "Secretaría Distrital de Ambiente — RMCAB (authority)",
      "url": "https://www.ambientebogota.gov.co/red-de-monitoreo-de-calidad-del-aire-de-bogota-rmcab",
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       "value": "Operator page: 'veinte (20) estaciones', 'opera desde 1997', hourly collection, black carbon and meteorological variables, OpenAQ publication. Note the conflict on the start year — the Frontiers decade review below dates operation from 1998.",
       "exact": false
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      "title": "Resolución Conjunta 2840 de 2023 — SDA & Secretaría Distrital de Salud (authority)",
      "url": "https://www.alcaldiabogota.gov.co/sisjur/normas/Norma1.jsp?i=152203&dt=S",
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       "value": "Establishes IBOCA and its five bands: green 0-50 and yellow 51-100 (prevention), orange 101-150 (Alert Phase 1), red 151-200 (Alert Phase 2), purple 201+ (Emergency). Issued 15 Dec 2023, in force 16 Dec 2023.",
       "exact": false
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       "status": "not-captured"
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     },
     {
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      "title": "Resolución 278 de 2024 — Alerta Fase 1, Zona Sur Occidente (trade press summary of the act)",
      "url": "https://www.fenalco.com.co/blog/juridico-2/notijuridico-010-secretaria-de-ambiente-declara-la-alerta-fase-1-por-contaminacion-atmosferica-en-la-zona-sur-occidente-de-bogota-d-c-2587",
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       "classification": "not-classified"
      },
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      "language": "und",
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      "claimRefs": [],
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       "type": "descriptive-source-note",
       "value": "A dated, real declaration triggered by IBOCA readings from RMCAB: restricts solid- and liquid-fuel boilers Mon-Sat 06:00-15:00 and bars preventive maintenance of emission-control systems. Only industrial measures are detailed here; no school or construction measures are claimed.",
       "exact": false
      },
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       "status": "not-captured"
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     },
     {
      "id": "src-52581cce058a0649",
      "title": "Resolución declaratoria de Alerta Fase 1 (authority, primary text)",
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      "locator": {
       "type": "descriptive-source-note",
       "value": "District publication of the declaring resolution. Earlier rounds (Resolución 0510 of 28 Mar 2019, Decreto Distrital 078 de 2020) added cargo-vehicle restrictions; those figures were only reachable via search snippets, so no tonnage or hours are asserted in the entry.",
       "exact": false
      },
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     },
     {
      "id": "src-f333a6692386d0f4",
      "title": "A Decade of Air Quality in Bogotá — Frontiers in Environmental Science (peer-reviewed)",
      "url": "https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2020.00065/full",
      "publisher": {
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       "domain": "frontiersin.org",
       "classification": "not-classified"
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      "role": "claim-evidence",
      "claimRefs": [
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      "temporal": {
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       "status": "publication-and-record-dates-recorded"
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      "locator": {
       "type": "descriptive-source-note",
       "value": "Carries the impact figure: 'For PM10, only five monitoring stations have at least 50% of valid data', and 'most of the data unavailability is due to equipment outages rather than unreliable measurements'. Also describes 14 automatic stations at the time, and criticises access as 'still focused on the needs of the data owner'. Dates network operation from 1998, against the operator's 1997.",
       "exact": false
      },
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      "title": "Enriched spatial analysis of air pollution: Bogotá — Frontiers (peer-reviewed)",
      "url": "https://frontiersin.org/articles/10.3389/fenvs.2022.966560/full",
      "publisher": {
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       "domain": "frontiersin.org",
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      "temporal": {
       "publishedAt": "2022-08-31",
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       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
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      "locator": {
       "type": "descriptive-source-note",
       "value": "Spatial-coverage counterweight: stations near the geographic centre share the most information with each other, while outskirts stations are singular — redundancy in the centre, thinner coverage at the edges.",
       "exact": false
      },
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     },
     {
      "id": "src-9c3205840619f764",
      "title": "Personal exposure in a Bus Rapid Transit System — Atmospheric Environment (peer-reviewed)",
      "url": "https://www.sciencedirect.com/science/article/abs/pii/S1352231019300482",
      "publisher": {
       "name": null,
       "domain": "sciencedirect.com",
       "classification": "not-classified"
      },
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Exposure counterweight: in-bus PM2.5 and black carbon inside TransMilenio far exceed ambient levels recorded by fixed stations, with a strong relationship between bus emission standard and in-vehicle concentration (Euro II/III roughly twice the stricter-standard buses).",
       "exact": false
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     },
     {
      "id": "src-1b97870a5ea48624",
      "title": "Datos Abiertos Bogotá — SDA air quality datasets (authority)",
      "url": "https://datosabiertos.bogota.gov.co/dataset?organization=sda&tags=Calidad+del+aire",
      "publisher": {
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      "role": "background",
      "claimRefs": [],
      "temporal": {
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       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Licence check: the catalogue displays 'Creative Commons Attribution 4.0' for the secretariat's air-quality datasets. A named, irrevocable instrument — the same tier as Montreal and Vienna.",
       "exact": false
      },
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    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 8,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 6,
     "sourcesWithArchive": 1,
     "sourcesWithExactLocator": 0,
     "sourcesWithContentHash": 0
    },
    "limits": [
     "Publisher names and source languages have not yet been classified; domains are recorded without guessing.",
     "Existing source notes are descriptive locators, not page- or paragraph-exact citations.",
     "A missing archive, publication date or content hash is shown as null rather than inferred.",
     "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim."
    ]
   }
  }
 ]
}