Permanent project revision

Hyperlocal Air Mapping: Sensor Network and Mobile Monitoring

Revision 2026-08-20-source-dates · effective 2026-07-26

Superseded. A later revision exists: 2026-08-26-claim-mapping →

unreviewed

Created the first structured Evidence Passport with 1 claim and 5 source dossiers.

sha256:f1fd632a9328675f4803bd5ccbd87a1187dd720b7048a36269a4d4e8e7926aaa

All revisions → Current entity page →

Change set

add /evidencePassport — Added claim-level evidence mapping and source dossiers.
add /revisionHistory — Established a permanent, hash-addressed baseline revision.

1: of 1 claims mapped
5: source dossiers
4: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-07b2415b3f0188ee quantitative

Peer-reviewed mobile mapping found mean on-road black carbon of roughly 10 micrograms per cubic metre on residential roads, 22 on arterials and 56 on highways, at 30 m resolution

Published field: impact · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The study draws on a CNG car with research-grade monitors that drove about 10% of the city's roads between November 2021 and June 2022.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Science of the Total Environment (peer-reviewed) — Multi-season mobile monitoring of on-road air pollution in Bengaluru (2024)

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-20-source-dates effective 2026-07-26 · created 2026-08-20

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:f1fd632a9328675f4803bd5ccbd87a1187dd720b7048a36269a4d4e8e7926aaa

Revision history → Permanent version link → Machine-readable record → Evidence Constitution →

1: of 1 claims mapped
5: source dossiers
4: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Governance facts carried by the record

Operator: Center for Study of Science, Technology and Policy (CSTEP), with ILK Labs
Actor types: research
Funding model: Not recorded
Funding description: Not recorded
Cost: Not recorded
Ownership: Not recorded
Decision rights: Not recorded
Exit conditions: Not recorded

5 source dossiers

Google Earth Outreach — Air Quality (partner) google.com · background

Open original source ↗

Stable source ID: src-e95dae75a0003890
Publisher: Name not classified · google.com
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Confirms the Bengaluru partnership with CSTEP, the custom-fit CNG car with research-grade monitors, the Nov 2021 to June 2022 measurement window, the pollutants measured and the July 2023 launch of the maps. Bengaluru is the only non-Western city listed on the page.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

CSTEP — Mapping Bengaluru's air pollution using hybrid monitoring methods (27 July 2023) web.cstep.in · background

Open original source ↗

Stable source ID: src-7b153779ed388e93
Publisher: Name not classified · web.cstep.in
Type / language: web-page · language not classified
Published: 2023-07-27
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Operator source for the hybrid design: a CNG vehicle covering about 10% of the city's roads plus a city-wide network of 55 low-cost PM2.5 sensors; states that on-road levels consistently exceeded ambient levels.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Science of the Total Environment (peer-reviewed) — Multi-season mobile monitoring of on-road air pollution in Bengaluru (2024) pubmed.ncbi.nlm.nih.gov · 1 linked claim

Open original source ↗

Stable source ID: src-1f7f8b17c1e8ca0d
Publisher: Name not classified · pubmed.ncbi.nlm.nih.gov
Type / language: web-page · language not classified
Published: 2024-01-09
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: Open archived copy ↗ · 2025-02-06
Content hash: No captured content hash
Locator: Open the recorded source note
Carries the impact figures sentence-level: a roughly 150 km route with about 22 repeat measurements per road segment, 30 m resolution maps, and mean black carbon by road type. Authors from ILK Labs and CSTEP with three universities.
Descriptive only — not page/paragraph exact
Claims linked: clm-07b2415b3f0188ee

CSTEP — Indi-SET sensor evaluation facility project page cstep.in · background

Open original source ↗

Stable source ID: src-2583f26b3cdcfe24
Publisher: Name not classified · cstep.in
Type / language: web-page · language not classified
Published: 2025-10-24
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Establishes the facility at CSTEP's Bengaluru campus in December 2023 with reference-grade instruments; 150+ low-cost sensors collocated to date. The 'India's first' framing is CSTEP's own claim and is attributed as such.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Citizen Matters — Why Bengaluru needs hyperlocal air monitoring (25 Feb 2026) citizenmatters.in · background

Open original source ↗

Stable source ID: src-6e58e67189cc0e0d
Publisher: Name not classified · citizenmatters.in
Type / language: web-page · language not classified
Published: 2026-02-25
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-26
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Currency check and honest counterweight: 14 regulatory stations citywide, CSTEP currently running about 40 multi-pollutant low-cost sensors on a 1 km grid, and the example of a regulatory station 3 km away missing local waste-burning spikes.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Known limits of this passport

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.