HAP Annual Summary Report - Units Conversion
In most reports of AQS data, the units of measure for most gaseous HAPs are PPBC. For this report the units of measure for gaseous HAPs were converted from PPBC to ug/m3 as follows: ug/m3=PPBC * MW *...
View ArticleThe Download Files page has been updated
The hourly files had incorrect GMT time values (all other values, including the local time, are correct). This has been corrected and all hourly files have been replaced with the correct data. We also...
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
The AirData website had technical problems over the last several days. The problems have been resolved, and AirData is back up and running today. We're sorry for any inconvenience this may have caused...
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. In the meantime, pre-generated data...
View ArticleAirData is up and running
The AirData website had technical problems over the last several days. The problems have been resolved, and AirData is back up and running today. We're sorry for the inconvenience.
View ArticleAirData will undergo scheduled maintenance on Friday, December 19 from 7am to...
AirData will undergo scheduled maintenance on Friday, December 19 from 7am to 11am (Eastern). AirData services may be intermittent during that period.
View ArticleAirData will undergo scheduled maintenance on Friday, January 9 from 11am to...
AirData will undergo scheduled maintenance on Friday, January 9 from 11am to 12pm (Eastern). AirData services may be intermittent during that period.
View ArticleThe “Download Data Files” page has been updated.
The “Download Data Files” page has been updated. All files have been updated to incorporate any new data that was submitted to EPA since the last update (June, 2014). If a file was changed, it will...
View ArticleAirData is down
The database is in restricted mode due to a problem with the overnight update. All AirData services are down temporarily. We apologize for the inconvenience.
View ArticleAirData is back online
Yesterday's database problems have been resolved and the system is back online. We apologize for the inconvenience.
View ArticleChanges to Data Download Files
The Download Files page has been updated with new data and many other changes. Please note that we have made several changes to the data files. These changes include changing the formats of several...
View ArticleAirData Update
The AirData website was recently updated to connect to the new AQS Data Mart. You may notice some changes, including faster query times for many tools. In particular, please note: Annual means (for...
View ArticleQuery Air Data has a new web site!
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...
View ArticleAirData offline Sunday evenings for weekly update
AirData will be offline WEEKLY from 6pm EST Sunday to 6am EST Monday for scheduled weekly database updates.
View ArticleThe “Download Data Files” page has been updated
The “Download Data Files” page has been updated. The “Download Data Files” page has been updated. All files have been updated to incorporate any new data that was submitted to EPA since the last...
View ArticleInteractive Map - a change is coming soon
We plan to replace the existing map application on AirData with a new one by the end of December 2015. The new application will display the same layers as the existing map and will provide the same...
View ArticleInteractive Map - new interface
The map application on AirData has been updated to be consistent with the EPA GeoPlatform. The new application displays the same layers as the previous application. Instructions for using the map are...
View ArticleAirData is down
The database is unavailable due to a problem with the overnight update. All AirData services are down temporarily. We hope to restore services by this afternoon and will post an update as soon as...
View Article