Contaminants of emerging concern in urban stormwater: Spatiotemporal patterns and removal by iron-enhanced sand filters (IESFs)

Water Research
David J FairbairnBenjamin M Westerhoff

Abstract

Numerous contaminants of emerging concern (CECs) typically occur in urban rivers. Wastewater effluents are a major source of many CECs. Urban runoff (stormwater) is a major urban water budget component and may constitute another major CEC pathway. Yet, stormwater-based CEC field studies are rare. This research investigated 384 CECs in 36 stormwater samples in Minneapolis-St. Paul, Minnesota, USA. Nine sampling sites included three large stormwater conveyances (pipes) and three paired iron-enhanced sand filters (IESFs; untreated inlets and treated outlets). The 123 detected compounds included commercial-consumer compounds, veterinary and human pharmaceuticals, lifestyle and personal care compounds, pesticides, and others. Thirty-one CECs were detected in ≥50% of samples. Individual samples contained a median of 35 targeted CECs (range: 18-54). Overall, median concentrations were ≥10 ng/L for 25 CECs and ≥100 ng/L for 9 CECs. Ranked, hierarchical linear modeling indicated significant seasonal- and site type-based concentration variability for 53 and 30 CECs, respectively, with observed patterns corresponding to CEC type, source, usage, and seasonal hydrology. A primarily warm-weather, diffuse, runoff-based profile included many h...Continue Reading

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Citations

Jul 7, 2018·Environmental Toxicology and Chemistry·Benjamin M WesterhoffHeiko L Schoenfuss
Jun 28, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Carolyn M RodakJason R Vogel
Aug 23, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Jianmin WangChin-Pao Huang
Sep 11, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Archie NgLokesh P Padhye
Feb 14, 2021·International Journal of Environmental Research and Public Health·Emile S Massima MoueleLeslie F Petrik
Feb 26, 2021·The Science of the Total Environment·Jane R de LambertMark A Borchardt
Mar 8, 2021·The Science of the Total Environment·Jessica R DeereTiffany M Wolf
Aug 24, 2020·Environmental Pollution·Lucie PinasseauEmmanuelle Vulliet
Jun 30, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Sumaiya Saifur, Courtney M Gardner
Apr 1, 2020·Environmental Science & Technology·Lena MutznerChristoph Ort
Dec 12, 2019·Analytical Chemistry·Susan D Richardson, Susana Y Kimura
Dec 16, 2021·The Science of the Total Environment·Ila ShimabukuRebecca Sutton
Feb 5, 2022·Water Environment Research : a Research Publication of the Water Environment Federation·Sarah M ElliottHeiko L Schoenfuss

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