Source Emissions in Tailings Ponds, Oil Sands Region
Concentrations of Polycyclic Aromatic Hydrocarbons and Total Petroleum Hydrocarbons in Tailings Pond Water in the Oil Sands Region – September 2013
To evaluate evaporation from tailings ponds as a potential source of emissions of pollutants to air, bulk water samples were collected from 8 locations in two ponds at a single facility in the oil sands region over two days in September 2013. Chemical measurements of polycyclic aromatic hydrocarbons (PAHs) and total petroleum hydrocarbons (TPH) were made. PAH data are reported for the sixteen species identified as priority pollutants by the US EPA. TPH refers to the total amount of hydrocarbon compounds. In this dataset, TPH values represent the amount of saturate and aromatic hydrocarbons measured in the tailings pond water samples as determined using specific analytical techniques (fractionation and gas chromatography). PAHs are included on the List of Toxic Substances of the Canadian Environmental Protection Act (CEPA) and are subject to management under the Act. Preliminary estimates suggest that PAH emissions to the atmosphere from tailings pond water are significant when compared to other reported sources in the region, as reported in the paper by Galarneau et al., 2014.
Concentrations and Fluxes of Odours, Reduced Sulphur Compounds (RSCs) and Volatile Organic Compounds (VOCs) Emitted from Tailings Pond Water in the Oil Sands Region – October 2014
To generate estimates of potential emissions to the air from tailings pond water, surface water samples were collected from five locations within a single tailings pond in October 2014. A laboratory flux chamber was used to evaluate potential emissions to the air from tailings pond water. The air was then analysed for reduced sulphur compounds (RSC), volatile organic compounds (VOC) and odour perceptibility. VOC and RSC fluxes to the atmosphere from tailings pond water contribute to the overall burden of smog- and odour-causing compounds in the region. Results are presented as concentrations in the generated air and as emission fluxes (i.e. rate of flow of the compound from the water to the air) derived using the flux chamber flow characteristics. Air concentrations measured using laboratory flux chambers simulate the state of the atmosphere under limited conditions and do not represent the full range of values that can arise due to variations in factors such as temperature and wind speed.Ambient air quality objectives (AAQOs) do not apply to air directly above emissions sources such as tailings ponds; nor do they apply to these air data generated from tailings pond water samples.
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|JOSM_Tailings_PAH__GC_MS_FID_AB_2013_V2.csv||18-Nov-2016 14:38||52K||Comma separated|
|JOSM_Tailings_VOC_RSC__GC_MS_FID_AB_2014_V2.csv||18-Nov-2016 14:42||100K||Comma separated|
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