Evidence-backed facts
- OpenAQ documents air-quality locations, sensors, measurements, parameters, providers, owners, countries, and aggregates. informative
- Requests follow the documented API-key and rate rules; access does not grant provider, sensor, regulatory, health, or source-data authority. informative
- Clients must bind location, sensor, parameter, owner, provider, country, coordinates, time, aggregation, paging, and key handling. informative
- Measurements come from heterogeneous providers and can be delayed, invalidated, sparse, or non-regulatory and do not prove personal exposure, compliance, or health outcome. informative