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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 is 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 is available through the CASA Data Warehouse at

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

INFO!   Now Available: A PDF download of the DRAFT 2014 Annual Report is available (10.7 MB).

INFO!   Monthly Dashboard Summaries are available for download.

The Palliser Airshed Society would like to thank Alberta Environment and Sustainable Resource Development for providing an Environmental Collaboration and Partnerships Grant in 2014. The funding from this grant allowed PAS to continue to operate, and has provided the opportunity for PAS to increase our Education and Outreach initiatives in the region.

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) is:
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Palliser Airshed Society