{
 "schemaVersion": "1.0.0",
 "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": "surat-air-quality-monitoring",
  "title": "Clean Air Action Plan and Ambient Monitoring",
  "canonicalUrl": "https://1001smartcities.org/projects/surat-air-quality-monitoring/"
 },
 "currentRevisionId": "2026-08-20-baseline",
 "revisions": [
  {
   "id": "2026-08-20-baseline",
   "createdAt": "2026-08-20T12:00:00Z",
   "effectiveAt": "2026-08-20",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 6 claims and 4 source dossiers.",
   "preparedBy": {
    "type": "automation",
    "label": "AI-assisted evidence preparation",
    "humanApproved": false
   },
   "review": {
    "status": "unreviewed",
    "by": null,
    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
   "changes": [
    {
     "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."
    }
   ],
   "snapshotHash": "sha256:074e3a9169d00d2f7e46b7751e3f21b5cd7f85a4315de54a2c02c446f4afc47e",
   "snapshot": {
    "asOf": "2026-08-20",
    "projectFingerprint": "sha256:65631c36ebdf6cc76fe3e1fb312fd85f519556ef2b79cd50cbd4af3bf320e01c",
    "assurance": {
     "status": "unreviewed",
     "scope": "evidence-passport-revision",
     "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.",
     "machineChecks": [
      "schema",
      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
      "source-reference-resolution",
      "complete-source-dossier",
      "snapshot-hash"
     ]
    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "official",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "Surat Municipal Corporation Air Quality Management Cell, alongside Gujarat Pollution Control Board stations",
     "actorTypes": [
      "city-government",
      "regional-government",
      "national-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-7b31c3b7f294722b",
      "field": "snippet",
      "text": "Surat is one of the 102 cities India designated as 'non-attainment' when it launched the National Clean Air Programme in 2019",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9c2bf126543dbd7c"
      ],
      "supportNote": "The corporation publishes its clean-air action plan as the instrument required under the National Clean Air Programme, the national scheme launched in 2019 that named 102 cities as not meeting ambient standards.",
      "caveat": "The count of non-attainment cities was later revised upward nationally as the programme expanded; 102 is the figure for the 2019 launch cohort that Surat belongs to.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-64471dc087f45ac0",
      "field": "snippet",
      "text": "Its own continuous ambient monitoring consists of two sensor-based stations, at the Varachha and Limbayat zone offices, publishing live, hourly, daily, weekly and monthly readings",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-fda053fa8b8b27d7"
      ],
      "supportNote": "The operator's own station page lists exactly two sensor-based continuous stations with coordinates — Varachha Zone Office and Limbayat Zone Office — and describes the data as updated 'Live, hourly, daily, weekly, monthly etc.'",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-b68710fb2f827857",
      "field": "snippet",
      "text": "the Gujarat Pollution Control Board operates seven further stations in the city that take manual samples rather than continuous ones",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-fda053fa8b8b27d7"
      ],
      "supportNote": "The same municipal page distinguishes its two sensor-based continuous stations from seven manual air monitoring stations operated in the city by the Gujarat Pollution Control Board.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-fec509a11cb56f13",
      "field": "snippet",
      "text": "Seven additional continuous stations — four municipal, three GPCB — are planned under the programme's funding",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-fda053fa8b8b27d7"
      ],
      "supportNote": "The municipal page records a joint SMC and GPCB decision to install seven further continuous stations under NCAP funds, four by the corporation and three by the state board, and names planned locations.",
      "caveat": "These are planned rather than operating stations; the page gives no commissioning date.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-9320b859709c51ed",
      "field": "impact",
      "text": "At the Swachh Vayu Survekshan awards announced on 7 September 2024, Surat was ranked first among Indian cities with more than a million residents, ahead of Jabalpur and Agra",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d0eb593f3c764e18"
      ],
      "supportNote": "Verbatim: 'Surat has emerged as the leading city in India for air quality improvements, followed by Madhya Pradesh's Jabalpur and Uttar Pradesh's [Agra]', in a report dated 8 September 2024 about awards announced the previous day, in the category for cities above one million residents.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-604edd231b9c032c",
      "field": "impact",
      "text": "The survey scores cities largely on the measures they implement rather than on measured concentrations, and neither the award announcement nor the corporation publishes a Surat-specific reduction against the programme's 2017-18 baseline",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d0eb593f3c764e18"
      ],
      "supportNote": "The report of the award gives national aggregates — how many cities cut PM10 by more than 20 and 40 per cent against the 2017-18 base year — but no Surat figure, and no such figure was found on the corporation's own air-quality pages.",
      "caveat": "A negative statement about what the sources do not contain; it rests on the pages read for this entry rather than on an exhaustive search of municipal publications.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-fda053fa8b8b27d7",
      "title": "Surat Municipal Corporation, Continuous Ambient Air Monitoring Stations",
      "url": "https://www.suratmunicipal.gov.in/Departments/CAAQMS",
      "publisher": {
       "name": null,
       "domain": "suratmunicipal.gov.in",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-64471dc087f45ac0",
       "clm-b68710fb2f827857",
       "clm-fec509a11cb56f13"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-20",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The operator's own station list: two sensor-based continuous stations at the Varachha and Limbayat zone offices with coordinates, data described as updated 'Live, hourly, daily, weekly, monthly etc.', seven GPCB manual stations, and the seven planned additional continuous stations (four SMC, three GPCB) under NCAP funds. A continuously revised departmental page, so no publication date is recorded.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-1d7dd20d9f8a6fb3",
      "title": "Surat Municipal Corporation, Air Quality Management Cell",
      "url": "https://www.suratmunicipal.gov.in/Departments/AirQualityManagementCell",
      "publisher": {
       "name": null,
       "domain": "suratmunicipal.gov.in",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-20",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Establishes that the cell is responsible for operating and maintaining the air quality monitoring stations across the city.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-9c2bf126543dbd7c",
      "title": "Surat Municipal Corporation, Clean Air Action Plan",
      "url": "https://www.suratmunicipal.gov.in/Departments/CleanAirActionPlan",
      "publisher": {
       "name": null,
       "domain": "suratmunicipal.gov.in",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-7b31c3b7f294722b"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-20",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The city's action plan under the National Clean Air Programme, the instrument that the non-attainment designation obliges.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d0eb593f3c764e18",
      "title": "Gujarat Samachar (media), on the Swachh Vayu Survekshan result",
      "url": "https://english.gujaratsamachar.com/news/gujarat/surat-gujarat-top-indias-air-quality-rankings-75452047676",
      "publisher": {
       "name": null,
       "domain": "english.gujaratsamachar.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-9320b859709c51ed",
       "clm-604edd231b9c032c"
      ],
      "temporal": {
       "publishedAt": "2024-09-08",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-20",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Carries the ranking: first among cities with populations above one million in the awards announced 7 September 2024, ahead of Jabalpur and Agra. The report gives no Surat-specific PM10 reduction figure, which is why the entry does not state one.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 6,
     "claimsMapped": 6,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 1,
     "sourcesWithArchive": 0,
     "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."
    ]
   }
  }
 ]
}