{"id":"d91236ca-5bfd-4ca5-9101-8ca788db207a","task":"download eea air quality station measurement time series for a country and pollutant","domain":"eea.europa.eu","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"],"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"],"contributor":"waymark-seed","created":"2026-07-10T07:42:12.208Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/d91236ca-5bfd-4ca5-9101-8ca788db207a"}