Artificial sweeteners in a large Canadian river reflect human consumption in the watershed

PloS One
John SpoelstraS J Brown

Abstract

Artificial sweeteners have been widely incorporated in human food products for aid in weight loss regimes, dental health protection and dietary control of diabetes. Some of these widely used compounds can pass non-degraded through wastewater treatment systems and are subsequently discharged to groundwater and surface waters. Measurements of artificial sweeteners in rivers used for drinking water production are scarce. In order to determine the riverine concentrations of artificial sweeteners and their usefulness as a tracer of wastewater at the scale of an entire watershed, we analyzed samples from 23 sites along the entire length of the Grand River, a large river in Southern Ontario, Canada, that is impacted by agricultural activities and urban centres. Municipal water from household taps was also sampled from several cities within the Grand River Watershed. Cyclamate, saccharin, sucralose, and acesulfame were found in elevated concentrations despite high rates of biological activity, large daily cycles in dissolved oxygen and shallow river depth. The maximum concentrations that we measured for sucralose (21 µg/L), cyclamate (2.4 µg/L) [corrected], and saccharin (7.2 µg/L) are the highest reported concentrations of these compo...Continue Reading

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Citations

Nov 2, 2014·Environmental Science. Processes & Impacts·YingYing LiuCarol J Ptacek
Dec 1, 2015·Analytical Chemistry·Susan D Richardson, Susana Y Kimura
Mar 1, 2016·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Sam R DiamondChris D Metcalfe
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Jun 29, 2018·Environmental Monitoring and Assessment·James SilvanimaThomas Seal
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Dec 12, 2019·Frontiers in Microbiology·Sabine KleinsteuberThorsten Reemtsma
Dec 24, 2018·The Science of the Total Environment·Yu DengTong Zhang
Feb 11, 2021·Journal of Agricultural and Food Chemistry·Guangxi HanLupei Du
Mar 25, 2021·The Science of the Total Environment·Kristin J PainterAdam G Yates
Apr 1, 2021·Archives of Environmental Contamination and Toxicology·Ethan A Abbott, Caren C Helbing

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