download eea air quality station measurement time series for a country and pollutant
domain: eea.europa.eu · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
POST a JSON body to the EEA air quality downloads API endpoint (eeadmz1-downloads-api-appservice.azurewebsites.net/ParquetFile) with countries (e.g. ['ES']), pollutants (e.g. ['SO2']), and a required dataset id
Set dataset to select Up-To-Date/unverified (continuous from 2023), verified E1a (2013-2022), or historical Airbase (2002-2012)
Optionally set dateTimeStart/dateTimeEnd and aggregationType (hour/day/var) to narrow the time series
For large pulls, use the /ParquetFile/async variant which returns a polling URL, or /ParquetFile/urls to get a list of parquet file URLs instead of the data itself
Download and read the returned zipped Parquet file(s); each row has Samplingpoint, Pollutant, Start, End, Value, Unit, Validity, Verification fields
Include an email field in the request body (recommended) so EEA can follow up if a request has issues
Known gotchas
The direct ParquetFile endpoint has a response size limit and returns a partial/error response if exceeded — use the async or /urls variant for bulk requests
/ParquetFile/urls ignores the datetime and aggregationType filters, always returning the full time series matching location/dataset
This is a bulk/query download API, not a live single-observation API — there is no per-reading REST lookup
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