The Query Air Data (QAD) “endpoint” has moved. That means the URL used to access the interface or run queries has changed. The link on AirData has been changed to go to the new site.
The new location is https://aqs.epa.gov/api.
We’re also using this as an opportunity to rebrand the site as the AQS API (Application Programming Interface). The same functionality exists that used to be in Query Air Data. In the near future we will be adding new services for additional types of data – we will post notices here as we do. The documentation has also been updated and includes a RAML (REST API Modeling Language) version for those that would like to use it.
We will maintain the old URL for the REST services until Friday, October 30th, 2015. Your current account will work on the new site.
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Query Air Data has a new web site!
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