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Palliser Airshed Society

Welcome to the Palliser Airshed

The Palliser Airshed Society (PAS) was established in the Spring of 2003 to monitor air quality in the Medicine Hat / Redcliff region. To date there is one continuous monitoring site and 22 passive sampling sites. PAS also recently initiated operations of an airpointer continuous monitoring station in Brooks.

The continuous monitoring site (located in Crescent Heights, Medicine Hat) provides real time data for NO2, SO2, O3, CO, THC, PM2.5 and Meteorological Data. Monthly data from the passive sites includes NOx, SO2 and O3. Real time data from the Brooks airpointer are available beginning July 1, 2015.

Air Quality Health Index (AQHI)

The Air Quality Health Index is a scale designed to help you understand what the air quality around you means to your health. It is designed to help you make decisions to protect your health by limiting short-term exposure to air pollution and adjusting your activity levels during increased levels of air pollution. For more information, please visit:

Current Minute Data Now Available Using Microsoft® SilverLight™.

SilverLight™ requires Internet Explorer®

Final hourly data are available through the CASA Data Warehouse at

Data for the Portable Jenner station are available for October 1, 2009 to February 28, 2010. Data for the Portable Hays station are available for May 18 to September 30, 2011.

INFO!   Now Available: A PDF download of the 2014 Annual Report is available (14.3 MB).

INFO!   Monthly Dashboard Summaries are available for download.

The Palliser Airshed Society would like to thank Alberta Environment and Parks as well as the Alberta Environmental Monitoring Evaluation and Reporting Agency for providing funding support of operations in 2015. In addition to contributions from industry partners, these funds allow PAS to continue to operate a monitoring network which provides access to air quality data for residents of the southeastern region of Alberta.

Palliser Health Region Map

Contact Us

Ken Perl, Executive Director
Palliser Airshed Society
Suite 208
3271 Dunmore Road SE, Unit 3
Medicine Hat, AB. T1B 3R2
PH 403 892 7745

The current Air Quality Health Index (AQHI) in Medicine Hat is:
Enjoy your usual outdoor activities.

The current Air Quality Health Index (AQHI) in Brooks is:
Enjoy your usual outdoor activities.
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Palliser Airshed Society