New AQI plot
The new AQI Plot allows you to compare AQI values for any two AQI pollutants.
View ArticleData download from each vizualization tool now available
You can now get underlying data for each visualization tool. The download link is provided with each plot.
View ArticleOzone exceedances vizualization tool now available
The Ozone Exceedances visualization tool is now available. Use it to compare ozone exceedances from one year to the next.
View ArticleNew Tile Plot feature
The Tile Plot has a new feature. By mousing-over each day in the plot, you can see which monitor is responsible for the daily max AQI value.
View ArticleAirData Webinar recording now available
See a demo of the tools available on this website. The February 9th AirData Webinar is now on-line.
View ArticleSpreadsheet version of monitoring network maps now available
Spreadsheet versions of the monitoring network map layers are now available.
View ArticleThe AQS Data Mart will be down for scheduled maintenance
The AQS Data Mart will be down for scheduled maintenance on Sunday, March 4 from 6 a.m. until 12 noon. AirData tools will not be functional during this time.
View ArticleThe AQS Data Mart will be down for scheduled maintenance
The AQS Data Mart will be down for scheduled maintenance on Saturday, March 10 from 6 a.m. until 12 noon. AirData tools will not be functional during this time.
View ArticleMap individual states with Concentration Map
You can now map individual states with the Concentration Map.
View ArticleCORRECTION and reformatting of CO annual summary statistics
Air Quality Statistics reports and Monitor Values reports (for CO) generated prior to April 9, 2012 on AirData provided the 2nd max instead of the non-overlapping 2nd max for CO (8-hour). The...
View ArticleInteractive Map layers now show active vs. inactive monitors
The interactive map now shows which monitors are active or inactive. In addition, the markers are larger and easier to see on the map!
View ArticleThe new Query Air Data tool provides raw data
The new Query Air Data tool provides raw data for a specific location and time for any pollutant.
View ArticleRaw Data Download working again
Sometime over the weekend the Raw Data Download services stopped working. Users were greeted with an "Internal Server error" message when they attempted to download their results. This problems has...
View ArticleThe AQS Data Mart will be down for scheduled maintenance on Saturday, Nov 10...
The AQS Data Mart will be down for scheduled maintenance on Saturday, November 10 from 6 a.m. until 12 noon. AirData tools will not be functional during this time.
View ArticleThe Query Air Data (QAD) / Download Raw Data system running again
The Query Air Data (QAD) / Download Raw Data system was inoperable for a period of several days due to server problems. All requests received an 'internal server error' message. The problems have been...
View ArticleAirData is up and running
The AirData website was affected by an agency-wide application outage yesterday afternoon. The problem has been resolved, and AirData is back up and running today. We're sorry for any inconvenience...
View ArticleThe Query Air Data (QAD) service no longer supports anonymous access
Due to anonymous users overwhelming the Download Raw Data (Query Air Data) service, either accidentally or in an intentional denial of service, we are left with no option but to disallow anonymous...
View ArticlePM2.5 AQI breakpoints will change soon
As many of you know, on Dec. 14, 2012, US EPA took steps to protect the health of Americans from fine particle pollution by strengthening the annual health National Ambient Air Quality Standard...
View ArticlePM2.5 AQI breakpoints have changed
As many of you know, on Dec. 14, 2012, US EPA took steps to protect the health of Americans from fine particle pollution by strengthening the annual health National Ambient Air Quality Standard...
View ArticleAirData will not be available on Saturday, Apr 20 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 20th from 3am...
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