NO2 Diffusion tube data 2026 (Air Quality)
Monthly and annual average NO2 mean concentrations (µg/m3) from diffusion tubes across Cheshire East. NOTE - a figure of zero (0) indicates that there is no data for that month. All raw data is subject to Defra approved bias corrections and distance corrections where applicable. These two corrections are applied to the end of year annual average not the monthly data. As such the annual average will be different from the running average.
- Areas
- 59
- Formats
- 5
- Last updated
- 22 Sept 2026
Download & API
NO2 Diffusion tube data 2026 (Air Quality) (CSV)csv
Spreadsheet — UTF-8, one header row
NO2 Diffusion tube data 2026 (Air Quality) (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
NO2 Diffusion tube data 2026 (Air Quality) (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
NO2 Diffusion tube data 2026 (Air Quality) (map tiles)pmtiles
Vector tiles — embed in a map
Live ArcGIS layer (source)arcgis
Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works
Schema
| Field | Type | Values |
|---|---|---|
| Site_ID | string | |
| Address | string | |
| Town | string | |
| Category | string | 5 values: Roadside (44), Other (6), Kerbside (4)… |
| January2026RawData | number | 0.00 to 43.83 |
| February2026RawData | number | 0.00 to 35.95 |
| March2026RawData | number | 0.00 to 35.20 |
| April2026RawData | number | 0.00 to 30.45 |
| May2026RawData | number | 0.00 to 35.58 |
| June2026RawData | number | 0.00 to 30.90 |
| July2026RawData | number | 0.00 to 33.10 |
| August2026RawData | number | 0.00 to 40.66 |
| September2026RawData | number | |
| October2026RawData | number | |
| November2026RawData | number | |
| December2026RawData | number | |
2026RawAnnualRunningMeanData F2026RawAnnualRunningMeanData | number | 6.59 to 33.20 |
| January2026RawStatus | string | 2 values: Below (58), Above (1) |
| February2026RawStatus | string | 1 value: Below (59) |
| March2026RawStatus | string | 1 value: Below (59) |
| April2026RawStatus | string | 1 value: Below (59) |
| May2026RawStatus | string | 1 value: Below (59) |
| June2026RawStatus | string | 1 value: Below (59) |
| July2026RawStatus | string | 1 value: Below (59) |
| August2026RawStatus | string | 2 values: Below (58), Above (1) |
| September2026RawStatus | string | |
| October2026RawStatus | string | |
| November2026RawStatus | string | |
| December2026RawStatus | string | |
2026RawAnnualRunningMeanStatus F2026RawAnnualRunningMeanStatus | string | 1 value: Below (59) |
| Easting | integer | 365,293 to 398,023 |
| Northing | integer | 351,402 to 384,826 |
| Longitude | number | -2.52 to -2.03 |
| Latitude | number | 53.06 to 53.36 |
| ACTIVE | string |