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• Monitoring Stations & Data
  • Historical Monitoring Data
  • Monitoring Stations
    • Fort McKay (AMS 1)
    • Mildred Lake (AMS 2)
    • L.C. Met Tower (AMS 3)
    • Buffalo Viewpoint (AMS 4)
    • Mannix (AMS 5)
    • Patricia McInnes (AMS 6)
    • Athabasca Valley (AMS 7)
    • Fort Chipewyan (AMS 8)
    • Barge Landing (AMS 9)
    • Albian Mine Site (AMS 10)
    • Lower Camp (AMS 11)
    • Millennium (AMS 12)
    • Syncrude UE-1 (AMS 13)
    • Anzac (AMS 14)
    • CNRL Horizon (AMS 15)
    • Albian Muskeg River (AMS 16)
    • Mobile Monitoring Unit (MAMSL 1)
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• Fort McKay (AMS 1)
• Mildred Lake (AMS 2)
• Lower Camp Met Tower (AMS 3)
• Buffalo Viewpoint (AMS 4)
• Mannix (AMS 5)
• Patricia McInnes (AMS 6)
• Athabasca Valley (AMS 7)
• Fort Chipewyan (AMS 8)
• Barge Landing (AMS 9)
• Albian Mine Site (AMS 10)*
• Lower Camp (AMS 11)
• Millennium (AMS 12)
• Syncrude UE-1 (AMS 13)
• Anzac (AMS 14)
• CNRL Horizon (AMS 15)
• Albian Muskeg River (AMS 16)*

*Note: AMS 10 was retired due to mining in the location. It has been replaced with AMS 16 which is 4km SE of the former AMS 10 site.

The Mildred lake station is located at the Syncrude airstrip. In the picture shown above the station is the orange building on the left. This station was originally part of Syncrude's air monitoring network. Note the radio antenna on the tower. This antenna receives signals from the Buffalo Viewpoint station (station 4) located in Syncrude's South mine. There are no telephone lines available in the South mine, so two pairs of radio's transmit data from station 4 to station 2.

The Mildred Lake station contains analyzers that continuously measure SO₂, H₂S, THC, wind speed and direction, and temperature.

Our H₂S analyzers are based on a scientific measurement principle (fluorescence after thermal oxidation) specified by AENV in the Air Monitoring Directive (AMD). The H₂S analyzers also oxidize other sulphur compounds that are fluoresced and read as H₂S. The analyzer can, therefore, over report actual H₂S concentrations.

Within the WBEA network, H₂S is measured at some stations and Total Reduced Sulphur (TRS) is measured at other stations. TRS analyzers use the same measurement principle (fluorescence after thermal oxidation) as H₂S analyzers, but operate at a different oxidizing temperature. The choice of analyzer for each station is mandated by AENV Reporting Requirements in the Approvals to Operate a Facility and by the AMD.

The Alberta Ambient Air Quality Objective (AAAQO) for H₂S is based on odour perception.

Historical Monitoring Data

Current Data