A complete England monitoring review, with the live feed reported separately
- 171 active English AURN sites were discovered and catalogued.
- 142 of 142 configured target-pollutant stations reported across 9 of 9 regions.
- 9,570 valid station-days were analysed at 96.8% configured-stream completeness.
- 269 WHO-context station-days were retained for transparent descriptive follow-up; they are not legal exceedance counts.
Current-feed status: The separate live screen was not assessed because the newest accepted observation was 11.7 hours old. This does not invalidate the completed 30-day review.
Use the evidence
Review regional patterns, station comparisons, coverage denominators and downloadable station-days.
Current data service
Live episode assessment paused — monitoring observations were delayed
The current feed did not meet the four-hour episode-screen freshness rule. The newest accepted reporting-site observation was 11.7 hours old at collection. This is a data-availability status, not evidence that air was clean or that no event occurred.
Data-quality accounting
Quality issues are counted and disclosed rather than silently discarded or presented as valid observations.
Context joins are reported by state, not as misleading zero findings
No current event bundle is fabricated when observations are stale. Linkage readiness is retained for the next evaluable event, while source contribution and causation remain outside automated output.
Evidence acquired and classified
What the platform successfully collected this run
13 source streams reached connectivity or a stronger stage. Each source remains separately labelled by evidence role and validation maturity.
Record counts belong to different evidence classes and are not added together as a single scientific total. Downloaded context is not automatically treated as validated environmental evidence.
Priority evidence tasks
- Acquire and time-align official Met Office observations for every discovered event.
- Validate comparator monitor roles and create explicit urban-background, roadside and rural-background classes.
- Acquire actual DfT/WebTRIS traffic observations rather than catalogue metadata.
- Resolve principal installation permits and operator identities using exact official identifiers.
- Integrate CAMS regional fields and other competing-source layers before any source-consistent hypothesis.
- Keep the legacy Drive archive disabled; reacquire any potentially useful historic record from its original publisher before independent validation.
Technical appendixOpen the complete daily evidence status and source register
This Air Quality Project Daily Evidence Status
Generated: 2026-07-30T10:40:12+00:00
This Air Quality Project has updated its England-wide AURN network review, current live episode screen, source-state register, cross-reference readiness and publication checks for this daily run.
This is an evidence-screening and convergence note, not a regulatory, legal, medical, laboratory, meteorological, causal, source-apportionment or facility-risk determination.
Part A — England 30-day AURN monitoring review
Primary evidence product · England 30-day official monitoring review
National coverage criteria met
What England's monitoring data showed
This Air Quality Project analysed 9,570 valid station-days from 142 reporting stations, covering 9 of 9 English regions between 2026-06-30 and 2026-07-29.
Descriptive pollutant findings
These are measured 30-day station and regional patterns. They are not source-attribution, exposure, health or legal-compliance findings.
Manchester Piccadilly · North West · 30 valid days
Highest eligible regional median: South West (6.93 µg/m³).
WHO-context station-days: 179
London Harlington · London · 30 valid days
Highest eligible regional median: South West (15.27 µg/m³).
WHO-context station-days: 5
Luton A505 Roadside · East of England · 30 valid days
Highest eligible regional median: East Midlands (10.19 µg/m³).
WHO-context station-days: 85
Interpretation boundary: provisional official monitoring evidence; WHO guideline comparisons are contextual and are not UK legal exceedance counts.
Part B — Current live episode screen and forensic interpretation
Evidence statement
### Current environmental assessment unavailable
This Air Quality Project acquired 694 quality-accepted observations. 19 monitoring sites and 24 pollutant streams were identified; 12 sites and 13 streams supplied numeric data, but no resolved site met the current freshness requirement. The run therefore reports data availability and limitations rather than a current environmental finding.
Assessment status: Assessment unavailable — stale or missing inputs
Screening status: Not evaluable
Evidence strength: Data availability and quality status only
What the evidence directly shows
- Observed fact: The canonical release contains 694 quality-accepted observations. It identified 19 physical monitoring sites and 24 pollutant streams; 12 sites and 13 streams supplied numeric observations. Evidence: `primary_ground/primary_ground_snapshot.json`, `primary_ground/monitoring_site_availability.json`, `primary_ground/provenance_manifest.json`.
- Data quality finding: 0 of 12 reporting physical monitoring sites met the current freshness requirement. Evidence: `primary_ground/primary_ground_snapshot.json`.
- Observed fact: The run executed 0 technical cross-source join(s) and validated 0 as reproducible record linkage. Evidence: `api/cross_reference_audit.json`, `convergence/cross_reference_execution.json`.
Technical interpretation
The acquisition and validation pipeline operated, but the present evidence cannot answer whether a current particulate episode was occurring. A numeric zero for screening candidates is a processing count only and is not an environmental conclusion.
Corroboration status
- Applicable episode joins: 0
- Executed joins: 0
- Validated technical record-linkage joins: 0
- Configured joins still pending or blocked: 11
- Evidence dimensions without a quality-validated source: 6
- Evidence dimensions without executed episode linkage: 4
- Status: Not executed or not applicable
- Scientific meaning: Validated linkage demonstrates reproducible identifier, time or geometry matching only; it does not establish source contribution.
Alternative explanations that must be tested
- Regional or long range background pollution — Must be tested not assumed. Required evidence: validated regional comparators; CAMS or equivalent regional context.
- Road traffic, domestic/commercial combustion or other local activity — Must be tested not assumed. Required evidence: time-aligned activity data; spatial and wind-sector analysis.
- Wildfire, open burning, dust or transported aerosol — Must be tested not assumed. Required evidence: FIRMS/satellite context; meteorology and trajectory evidence.
- Monitor artefact, siting effect, missingness or method incompatibility — Must be tested not assumed. Required evidence: instrument and method metadata; quality flags; independent comparator behaviour.
Uncertainty and limitations
- Evidence geography for this run: London.
- Monitoring coverage is not equivalent to population exposure coverage.
- Technical record linkage does not establish contribution, causation or responsibility.
- Model, satellite, inventory, media and regulatory records remain separate evidence classes.
- The preferred UK-AIR current-particle source was unavailable; a quality-validated continuity fallback underpins this release.
- Missing or incomplete episode dimensions: competing_source_assessment, fire_and_satellite_context, official_meteorology, regional_model_context, regulatory_and_operational_context, traffic_activity.
Evidence required to change the interpretation
- Acquire and time-align official Met Office observations for every discovered event.
- Validate comparator monitor roles and create explicit urban-background, roadside and rural-background classes.
- Acquire actual DfT/WebTRIS traffic observations rather than catalogue metadata.
- Resolve principal installation permits and operator identities using exact official identifiers.
- Integrate CAMS regional fields and other competing-source layers before any source-consistent hypothesis.
- Keep the legacy Drive archive disabled; reacquire any potentially useful historic record from its original publisher before independent validation.
Explicit non-conclusions
- No source contribution or causation is determined.
- No permit, legal or regulatory breach is determined.
- No individual exposure or health effect is determined.
- No clean-air, safe-air or dangerous-air declaration is made.
- No named facility is implicated by proximity or contextual inclusion alone.
Claim boundary: Screening evidence only — no causal source attribution, legal or regulatory determination, health finding, safety declaration or compliance conclusion.
Primary measurement harvest
Pollutant time series: 24
Identified physical monitoring sites: 19
Reporting pollutant time series: 13
Physical monitoring sites with numeric data: 12
Configured streams with no accepted numeric data: 11
Provider-grid data capture: 41.0%
Fresh pollutant time series: 0
Fresh physical monitoring sites: 0
Environmental assessment status: not assessable stale inputs
A zero-candidate result is not interpreted as clean air when no monitoring series met the freshness requirement.
Physical sites and pollutant time series are counted separately. Missing or unresolved site identities are not silently promoted to sites.
Data-led screening and cross-reference execution
Screening events: 0
Executed cross-source joins: 0
Validated record-linkage joins: 0
Episode evidence bundles: 0
A validated join validates reproducible record linkage, time or geometry under its stated rules. It does not validate source contribution or causation.
Legacy Google Drive archive
Legacy records inventoried: 0
Legacy records quarantined: 0
Legacy records promoted through strict validation: 0
Google Drive material cannot influence This Air Quality Project findings unless the original non-Drive source, publication date, independent authority, SHA-256 content identity, lineage, parser/schema quality and exact target linkage are validated.
Validated legacy target counts
- No categories available.
These counts include only promoted legacy source records. Record volume is not a facility-risk, pollution, health-impact or compliance ranking.
Canonical source status
- Defra UK-AIR Sensor Observation Service: Failed. Downloaded records: 0; production usable: no. Next: Repair and retest the collector before use.
- Defra UK-AIR Atom downloads: Metadata/index only. Downloaded records: 0; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- Imperial College London LAQN API: Quality checks passed; target linkage pending. Downloaded records: 708; production usable: no. Next: Complete comparator, meteorology and competing-source validation.
- Environment Agency Public Register: Records downloaded; validation pending. Downloaded records: 23,575; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- Planning Data API: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- National Atmospheric Emissions Inventory: Metadata/index only. Downloaded records: 0; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- OpenAQ v3: Metadata/index only. Downloaded records: 0; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- World Air Quality Index API: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- OpenWeather current conditions: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Met Office Weather DataHub Land Observations: Records downloaded; validation pending. Downloaded records: 576; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- Met Office Weather DataHub Global Spot: Records downloaded; validation pending. Downloaded records: 10; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- Copernicus Atmosphere Monitoring Service: Records downloaded; validation pending. Downloaded records: 2; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- Copernicus Data Space STAC Sentinel-5P: Metadata/index only. Downloaded records: 0; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- NASA Earthdata Common Metadata Repository: Metadata/index only. Downloaded records: 26; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- PurpleAir API: Records downloaded; validation pending. Downloaded records: 296; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- NewsAPI: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- NewsData.io: Credential present; not harvested. Downloaded records: 0; production usable: no. Next: Run a minimal authenticated sample retrieval and validation test.
- SerpAPI: Credential present; not harvested. Downloaded records: 0; production usable: no. Next: Run a minimal authenticated sample retrieval and validation test.
- Companies House API: Credential present; not harvested. Downloaded records: 0; production usable: no. Next: Run a minimal authenticated sample retrieval and validation test.
- Google Drive legacy archive: Legacy archive disabled; not collected or scientifically used. Downloaded records: 0; production usable: no. Next: Keep disabled; do not collect, promote or use as scientific evidence.
- OpenAI API: Credential present; not harvested. Downloaded records: 0; production usable: no. Next: Run a minimal authenticated sample retrieval and validation test.
- Gemini API: Credential present; not harvested. Downloaded records: 0; production usable: no. Next: Run a minimal authenticated sample retrieval and validation test.
- UK-AIR Data Selector: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- SEPA Public Register: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Natural Resources Wales Public Register: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Northern Ireland environmental regulation records: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Local authority planning portals: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Environment Agency flood monitoring API: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Ordnance Survey Data Hub: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- ONS Open Geography Portal: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- NOMIS / ONS population data: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Index of Multiple Deprivation: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Get Information About Schools: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- CQC care directory: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Contracts Finder: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Find a Tender Service: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Waste Data Interrogator: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- WhatDoTheyKnow: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- ICO decision notices: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- OpenStreetMap / Overpass: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Department for Transport Road Traffic Statistics: Metadata/index only. Downloaded records: 16; production usable: no. Next: Harvest and validate underlying records; metadata is not measurement evidence.
- Department for Transport Port Freight Statistics: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- NASA FIRMS VIIRS and MODIS active fire data: Records downloaded; validation pending. Downloaded records: 767; production usable: no. Next: Validate schema, units, time basis, quality flags and lineage.
- UK Pollutant Release and Transfer Register: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Defra Local Air Quality Management and AQMA records: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Local authority LAQM annual status and detailed assessment reports: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- National Highways WebTRIS traffic data: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- OHID Fingertips Public Health Data API: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- ONS Census and population APIs: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- European Environment Agency air quality data: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- EMEP/EBAS atmospheric composition observations: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Natural England designated sites data: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- CEDA atmospheric and Earth observation archive: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
- Google Earth Engine: Not configured. Downloaded records: 0; production usable: no. Next: Implement only after authority, licence and scientific utility review.
A source is not described as production usable merely because a credential exists, an endpoint responds or metadata is indexed.
Visual review layer
- Primary-data pipeline: pollutant time series 24 → fresh physical sites 0 → screening events 0 → executed cross-source joins 0 → source determinations 0.
- Legacy archive: 0 inventoried, 0 quarantined and 0 promoted through strict validation.
- UK-AIR / LAQN discovery status: UK-AIR index entries 542, source links 5305, LAQN endpoints 5/5. Index/endpoint availability is not equivalent to downloaded validated measurement records.
- Pollutant cards are benchmark/context cards only.
- Emissions, ambient monitoring, exposure and health outcomes remain separate evidence classes.
External interrogation readiness
This Air Quality Project is ready for methodology, provenance, linkage and data-gap interrogation. It is not ready for source attribution, permit-compliance conclusions, exposure modelling, health-effects assessment or comparative facility ranking.
### IAQM / AQEG / atmospheric-science review
- Are target-matching and monitor-selection rules sufficiently conservative?
- Are receptor, background and comparator monitors separated correctly?
- Are meteorology and time-alignment gates explicit before interpretation?
### Public-health and reference-value review
- Does the public output avoid unsupported health-causation claims?
- Are pollutant benchmarks separated from source attribution?
- Are vulnerability/receptor flags presented as context, not diagnosis?
### Clean Air Programme / Clean Air Fund / EEA
- Is the data provenance clear enough for reuse and challenge?
- Are data gaps visible and actionable?
- Are official networks and open-data feeds preserved with source URLs and access dates?
### UKWIN / ToxicoWatch / GAIA / Zero Waste reviewers
- Are permitting, compliance, emissions and waste-policy questions kept traceable?
- Are campaign-source materials separated from official records and peer-reviewed studies?
- Are alternative explanations and contrary evidence recorded before public claims?
### Named scientific reviewers and independent experts
- Which source record supports each statement?
- What uncertainty remains before a stronger claim could be made?
- What additional monitoring, modelling or records would materially improve confidence?
Readiness
Overall: Api led screening and evidence convergence not source determination
Public claim level: Screening and readiness notes only
Primary evidence policy: Current England operational-scope primary-source harvesting and reproducible cross-source joins lead analysis. Every release is limited to the geography actually evidenced. The legacy Google Drive archive is disabled and has no scientific influence.
Claim boundary: No causal, legal, medical, regulatory, laboratory, comparative-risk or source-attribution determination is made by the automated output.
{
"comparator_checked": "not_applicable_no_fresh_screening_events_monitor_roles_pending",
"meteorology_checked": "official_meteorology_acquired_no_event_alignment_not_applicable",
"monitor_role_checked": "candidate_monitor_roles_unvalidated",
"parser_validated": "quality_validated_current_measurements",
"provenance_recorded": "complete_current_measurement_provenance",
"reviewer_challenge_recorded": "claim_Framework started",
"source_acquired": "complete_primary_measurements",
"time_alignment_checked": "not_applicable_no_fresh_screening_events"
}Next evidence tasks
- Acquire and time-align official Met Office observations for every discovered event.
- Validate comparator monitor roles and create explicit urban-background, roadside and rural-background classes.
- Acquire actual DfT/WebTRIS traffic observations rather than catalogue metadata.
- Resolve principal installation permits and operator identities using exact official identifiers.
- Integrate CAMS regional fields and other competing-source layers before any source-consistent hypothesis.
- Keep the legacy Drive archive disabled; reacquire any potentially useful historic record from its original publisher before independent validation.
Forensic scientific evidence review
Inspect evidence coverage, freshness, source maturity, executed cross-references, uncertainty and explicit non-conclusions.
Scientific evidence and software assurance are different
Scientific evidence
Measurements, station and regional coverage, descriptive calculations, source records and stated limitations are the evidence available for review.
Engineering assurance
Automated checks confirm that the pipeline followed its declared rules. They do not constitute peer review, accreditation, regulatory approval or institutional endorsement.