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Air Quality Parameters

The WBEA’s ambient air quality monitoring program is conducted through both continuous and time-integrated (non-continuous) sampling methods. The graphs in this section depict trends in annual mean concentrations from 1999 to 2020 for the parameters measured in the WBEA network.

Please note: Time-integrated data is currently not included on this data trend site; however, will be incorporated at a later date

Use this drop-down menu to select a parameter to view. Stations which monitor the chosen parameter can be selected from the list below.

Annual Mean TRS (ppb) Stations:

Total Reduced Sulphurs/Hydrogen Sulphide (TRS/H2S) Hydrogen sulphide is a colourless gas with a rotten egg odour. It is produced through industrial processes. The term “Total Reduced Sulphurs” covers a larger group of sulphur-containing compounds, including H2S, carbonyl sulphide, mercaptans, etc. These substances have the potential to cause odours in the region. In the WBEA airshed most industrial TRS and H2S emissions are from upgraders and tailings ponds, though there is a natural background ambient air concentration of the reduced sulphur compound carbonyl sulphide of approximately 0.5 ppb.