The CASA Data Warehouse
Welcome to the Alberta Ambient Air Data Management System (AAADMS). The AAADMS, more commonly known as the CASA Data Warehouse, is a central repository for ambient air quality data collected in Alberta.
Data contained on the CASA Data Warehouse Web site is archived data and may be at least one-month old. To access archived air quality data, click on the Data Reports Icon or click on "Data Reports" to the left of this page. Data is available in graphical or tabular formats. Data can be downloaded into comma-separated-variable files and imported into a spreadsheet program. Additional air quality data is available at Web sites of contributing organizations listed.
Near real-time current air quality data is available by clicking on the Current Air Quality link or at http://www.envinfo.gov.ab.ca/AQHI/ Data from this web page have not undergone quality control and quality assurance procedures, is considered "raw data" and may contain errors.
In Alberta, air quality is monitored by a comprehensive network of stations operated by Alberta Environment, air quality management zones, Environment Canada and industry stations. 48 continuous (hourly) monitoring stations currently provide data to the CASA Data Warehouse routinely every month.
Additionally, organizations provide data collected from portable stations; continuous hourly stations that are located on a temporary basis to address regional issues.
Non-continuous or intermittent data is also submitted such as VOC (Volatile Organic Compounds) data, PAH (Polycyclic Aromatic Hydrocarbons) data, Wet Deposition or Precipitation data, Particulate data, and Passive or Diffusive data.
The CASA Data Warehouse also contains historical data from stations that have been moved, decommissioned or shut down. Historically, Alberta Environment operated all the ambient air monitoring stations in Alberta; with the formation of airsheds in the 1990's the operation of many of these stations were transferred to an airshed. Regardless of the ownership of the air monitoring station, the data in the CASA Data Warehouse for a particular station will be uninterrupted; historical and current data can be found in the stations name under the current site or airshed name. If the station is moved to another site, the station name will change. If the monitoring program is discontinued, the data collection will cease.
Some of the links in the CASA Data Warehouse Web site to the Air Quality Database are being configured and may not work as expected. If you experience problems accessing any portions of this site, please contact the administrator.