Configure the extraction
Select the project coordinates, historical period and pollutants available under the account plan.
From CAMS EAC4
to an exact project location.
CAMS Air Quality automates the retrieval and scientific processing workflow while keeping the source, transformation steps and quality checks explicit.
3-hourly EAC40.75° source gridExact-site interpolationµg/m³ outputs
PROCESSING WORKFLOW
Six transparent stages.
The platform does not hide the scientific method behind a single download button. Each stage corresponds to a defined processing step.
Retrieve CAMS EAC4
The worker prepares the required surface and model-level requests against the Copernicus Atmosphere Data Store.
Interpolate the exact site
The four surrounding 0.75° grid points are used for bilinear interpolation to the requested latitude and longitude.
Convert concentrations
Surface particulate diagnostics are converted to µg/m³; supported gaseous species use model-level-60 meteorology to estimate air density before conversion.
Run QA/QC
The workflow checks expected timestamps, missing and duplicate records, interpolation fallback, NaN, negative and exact-zero values.
Build outputs
Validated results are assembled into data files, statistics, analytics, request traceability and editable Word reporting.
Exact-site bilinear interpolation
The requested coordinates are located within the surrounding CAMS grid cell. Concentrations at the four bounding grid points are combined using bilinear interpolation, rather than simply returning the nearest model grid point.
Air-density aware conversion
For supported gaseous pollutants, model-level-60 temperature and specific humidity are combined with surface pressure to estimate air density before converting mass-mixing-ratio fields to µg/m³.
Surface concentration diagnostics
PM₁₀, PM₂.₅ and PM₁ surface diagnostics are handled as mass concentrations and converted to µg/m³ for the final processed time series.
Keep the request with the result
Request metadata, source-grid context, selected pollutants, period and processing outputs remain tied to the run so users can review how a dataset was produced.
QUALITY ASSURANCE
Checks before the data is presented.
- Expected vs actual timestamps
- Missing and duplicate records
- Interpolation fallback events
- NaN and negative concentration values
- Exact-zero diagnostics
- Processing-stage completion
RESULTS
More than a raw download.
3-hourly processed values plus daily and monthly summaries.
Mean, extrema, percentiles, variability and pollutant-specific summaries.
Temporal trends, distributions, diurnal profiles and climatological views.
Company/project branding, tables, figures and editable DOCX output.
CAMS EAC4 is regional modelled background data.
It is useful for historical atmospheric context and regional background assessment. It is not on-site monitoring and does not replace direct regulatory measurements where those are required.
Copernicus Atmosphere Data Store ↗