API Usage
- All the APIs are provided for free.
- A valid key must be used for accessing the API.
- All the API are subjected to quota.
Data usage
- The data can not be sold or included in sold packages.
- The data can not be used in paid applications or services.
- The data can not be redistributed as cached or archived data.
For the historical data, check the data platform page.
App usage
- Attribution to the World Air Quality Index Project as well as originating EPA is mandatory.
- Public usage by for-profit corporations requires explicit agreement wit the World Air Quality Index team.
- Public usage by non-profit organization requires prior notification (by email) to the World Air Quality Index team.
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Please note that the we reserve the right to change the term of service at any time and without prior notice.