View ECCC Data Mart (French) (French, HTML)

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Publisher-reported update

2022-10-13

In 2018 samples of raw influent and final effluent wastewater from fourteen municipal wastewater treatment plants at various locations in Canada were analyzed for priority alkyl aryl sulfonates (AAS) using the methods developed by Van Stempvoort and Brown (2018). The analyses included seven homologues of linear alkyl benzenesulfonates (ABS), nine homologues of branched ABS, and six homologues of alkyl-phenoxybenzene-sulfonates (APBS). The latter included five homologues of monoalkyldiphenylether disulfonates (MADS) and one monoalkyldiphenylether sulfonate (MAMS) homologue. In the samples of raw influent wastewater from the fourteen treatment plants, the concentrations of linear ABS (total) ranged from 349 to 2701 µg/L, the concentrations of branched ABS (total) ranged from 20 to 126 µg/L, and the concentrations of APBS (total) ranged from 0.9 to 13.6 µg/L (Table 7). These are apparently the first published reports of the detections of APBS in wastewater. Generally the samples of final effluent from the same plants had much lower concentrations: the linear ABS ranged from 0.25 to 900 µg/L, the branched ABS ranged from below detection to 58 µg/L, and the APBS ranged from below…

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