The AirData Site is experiencing technical problems
The AirData Site is experiencing technical problems. We are working to resolve them and will get AirData back on-line as soon as possible.
View ArticleAirData is up and running
The AirData website had technical problems yesterday afternoon. The problem has been resolved, and AirData is back up and running today. We're sorry for any inconvenience this may have caused you.
View ArticleAirData will not be available on Saturday, Apr 27 from 3am to 11am (Eastern)
The database that AirData uses is being moved to new hardware. While this is happening the system will not be able to provide data. We anticipate the down time to be on Saturday, April 27th from 3am...
View ArticleThe AirData Site is experiencing technical problems
The AirData Site is experiencing technical problems. We are working to resolve them and will get AirData back on-line as soon as possible.
View ArticleAirData is up and running
This morning's problem has been resolved, and AirData is back up and running today. We're sorry for any inconvenience.
View ArticleThe Concentration Map tool is fixed
This tool has been down for a few weeks. We are pleased to report that it is working again as of Monday, May 20th.
View ArticleThe Query Air Data (QAD) service is not working
We are currently experiencing network problems at our data center that prevent the QAD application from working. We have attempted corrective action, but without success. We will continue to try to...
View ArticleAirData will not be available on Saturday, September 7 from 6am to 12pm...
The AQS Data Mart will be down for scheduled maintenance on Saturday, September 7 from 6am to 12pm (Eastern). AirData tools will not be functional during this time.
View ArticleThe AirData Site is experiencing technical problems
The AirData Site is experiencing technical problems. We are working to resolve the problems and will post a notice to this feed as soon as is AirData back on-line.
View ArticleAirData is up and running
This morning's problem has been resolved, and AirData is back up and running. We're sorry for any inconvenience.
View ArticleQuery Air Data (QAD) application now working, but in a limited capacity
The problem with the QAD application were due to the architecture of the rawData (synchronous) service. When this service would fail it would cause all other services to fail. As a first step in...
View ArticleQuery Air Data (QAD) application functioning properly again
Several small parts of the QAD application have broken over the last few months, leading to large problems. We have fixed the critical problems and the application is working properly again. We are...
View ArticleAirData will not be available on Saturday, November 9 from 6am to 12pm (Eastern)
The AQS Data Mart will be down for scheduled maintenance on Saturday, November 9 from 6am to 12pm (Eastern). AirData tools will not be functional during this time.
View ArticleNational reports now available
The Air Quality Index Report and Air Quality Statistics Report now allow you to get results for the entire United States in one query.
View ArticleAirData will not be available on Saturday, December 21 from 6am to 12pm...
The AQS Data Mart will be down for scheduled maintenance on Saturday, December 21 from 6am to 12pm (Eastern). AirData tools will not be functional during this time.
View ArticlePlot multiple years now
The Concentration Plot now allows you to plot up to 25 years of data. Also, the daily value and date are displayed when you mouse-over a data point.
View ArticleNational-level data files available for download
Pre-generated files of data for the entire nation are now available at Download Data Files. These are files of our most commonly requested parameters at the annual, daily, and hourly summary levels.
View ArticleHourly file headers corrected
All of the hourly data files on the Download Data Files page included a mistake in the header. (There were columns in the header that were not present in the file: Sample Duration and Sample...
View ArticleNew Report - Annual Summary Report for Hazardous Air Pollutants
A Monitor Values Report for Hazardous Air Pollutants is now available.
View ArticleThe Download Data Files page has been updated
The Download Data Files page has been updated. Any new or changed data reported to EPA since the last update (in February 2014) has been updated in the files. You can use the “as of” date on the file...
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