Trace organic compounds in rivers, streams, and wastewater in southeastern Alberta, Canada

Basiuk, Morgan; Brown, R. G.; Cartwright, Darlene; Davison, Ryan; Wallis, P. M.

doi:10.1080/20442041.2017.1329908

Cited by 16 publications

(9 citation statements)

References 37 publications

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“…Along with wastewater, antibiotics used in clinical practice and agriculture often end up in environmental reservoirs and in coastal marine environments ( Nödler et al, 2014 ; Nakayama et al, 2017 ). Here, they add to the burden of recalcitrant anthropogenic pollutants known as Trace Organic Compounds (TOrCs) ( Basiuk et al, 2017 ). Microorganisms inhabiting polluted water bodies are consequently exposed to varying low concentrations of chemical pollutants, including antibiotics ( Yadav, 2017 ; Chow et al, 2021 ).…”

Section: Biofilms In Naturementioning

confidence: 99%

Secondary Effects of Antibiotics on Microbial Biofilms

et al. 2020

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Biofilms are assemblages of microorganisms attached to each other, or to a surface, and encased in a protective, self-produced matrix. Such associations are now recognized as the predominant microbial growth mode. The physiology of cells in biofilms differs from that of the planktonic cells on which most research has been conducted. Consequently, there are significant gaps in our knowledge of the biofilm lifestyle. Filling this gap is particularly important, given that biofilm cells may respond differently to antibiotics than do planktonic cells of the same species. Understanding the effects of antibiotics on biofilms is of paramount importance for clinical practice due to the increased levels of antibiotic resistance and resistance dissemination in biofilms. From a wider environmental perspective antibiotic exposure can alter the ecology of biofilms in nature, and hence disrupt ecosystems. Biofilm cells display increased resilience toward antibiotics. This resilience is often explained by mechanisms and traits such as decreased antibiotic penetration, metabolically inactive persister cells, and intrinsic resistance by members of the biofilm community. Together, these factors suggest that cells in biofilms are often exposed to subinhibitory concentrations of antimicrobial agents. Here we discuss how cells in biofilms are affected by the presence of antibiotics at subinhibitory concentrations, and the possible ramifications of such secondary effects for healthcare and the environment.

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Section: Biofilms In Naturementioning

confidence: 99%

Secondary Effects of Antibiotics on Microbial Biofilms

et al. 2020

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“…SMX was detected at the highest concentration at 29.67 ng L − 1 in WWE2. SMX has been detected in WWEs in many countries, e.g., with mean concentrations at 18-910 ng L − 1 in USA (Kostich et al 2014;Nelson et al 2011), 519 ng L − 1 in Canada (Basiuk et al 2017), and 153−3375 ng L − 1 in France (Dinh et al 2017).…”

Section: Analysis Of Real Samplesmentioning

confidence: 99%

Fully-Automated SPE Coupled to UPLC-MS/MS Method for Simultaneous Detection of Trace Sulfonamides, Quinolones, and Macrolide antibiotics in Water

Zheng¹,

Tang²,

Bao³

et al. 2021

Preprint

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A fully automated solid-phase extraction (SPE) coupled ultra-high-performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) method was developed for analysis of antibiotics (sulfonamides, quinolones, and macrolide) in water matrices. Sample preparation optimization included the selection of the best SPE material and configuration (HLB disks), sample volume (500−1000 mL water sample (pH = 3)) with a flow rate at 1−2 mL min− 1, and an elution procedure with 2 ⋅ 6 mL methanol, 2 ⋅ 6 mL acetone-methanol (V/V = 1/1). Meanwhile, the parameters for UPLC-MS/S detection of each analyte was optimized, including LC retention time, and MS parameters. The instrumental limits of detection (LOD) and quantification (LOQ) of analytes ranged from 0.01−0.72 µg L− 1 and 0.05−2.39 µg L− 1, respectively, with good linear correlation (R2 > 0.995) and precision (< 9.9%). Matrix spike recoveries ranged between 63.3−99.2% in pure water, 60.8−91.3% in surface water (SW), and 59.9−102.8% in wastewater effluent (WWE) with relative standard deviations (RSD) below 11%. The matrix effects (MEs) observed for most of the analytes were ion suppression (0−25.8%) except for four compounds that had enhancement (0−8.0 %) in SW or WWE. This method can basically meet the needs of trace antibiotic residues detection in waters. Trace levels of sulfonamides, quinolones and macrolides using the developed antibiotic method were below LOQ (BQL) −94.47 ng L− 1 in WWEs and BQL−15.47 ng L− 1 in SW in the lower reaches of the Yangtze River Basin.

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“…As demonstrated in this study and several others previously conducted in Alberta, 2,4-D is extremely common in surface water throughout southern Alberta and the Canadian Prairie region (Rawn et al 1999, Donald et al 2001, Anderson 2005, Donald et al 2007). One study looking at organic compounds in southeastern Alberta (Basiuk et al 2017) did not often detect 2,4-D, likely because of the high analytical range (2-80 µg/L) of the ELISA used to perform analysis. In our study, with a quantification limit of 0.025 µg/L, 2,4-D's mean detected concentration was 0.230 µg/L, and detected concentrations ranged from 0.120 to 1.132 µg/L, well below the limit of detection of Basiuk et al (2017) for 2,4-D. Studies on the exposure of 2,4-D on insects (Freydier and Lundgren 2016), fish (DeQuattro and Karasov 2016, Guerrero-Estévez and López-López 2016), and human health (Morgan et al 2008) highlighted some potential impacts of this herbicide, including beneficial insect mortality, reduced larval survival, and endocrine disruption.…”

Section: Pesticide Sales Occurrence and Physicochemical Propertiesmentioning

confidence: 99%

“…One study looking at organic compounds in southeastern Alberta (Basiuk et al 2017) did not often detect 2,4-D, likely because of the high analytical range (2-80 µg/L) of the ELISA used to perform analysis. In our study, with a quantification limit of 0.025 µg/L, 2,4-D's mean detected concentration was 0.230 µg/L, and detected concentrations ranged from 0.120 to 1.132 µg/L, well below the limit of detection of Basiuk et al (2017) for 2,4-D. Studies on the exposure of 2,4-D on insects (Freydier and Lundgren 2016), fish (DeQuattro and Karasov 2016, Guerrero-Estévez and López-López 2016), and human health (Morgan et al 2008) highlighted some potential impacts of this herbicide, including beneficial insect mortality, reduced larval survival, and endocrine disruption. However, concentrations of 2,4-D and all other herbicides detected in this synoptic survey are well below the US Environmental Protection Agency's Aquatic Life Benchmarks for fish, aquatic invertebrates, and nonvascular plants (US EPA 2018).…”

Section: Pesticide Sales Occurrence and Physicochemical Propertiesmentioning

confidence: 99%

“…Several monitoring studies of pesticides in agricultural streams, irrigation water, and storm water conducted in Alberta have shown that surface water contamination is prevalent (Anderson 2005, Saffran 2005, Phelan 2012, Charest et al 2015, Basiuk et al 2017, but few studies have looked at pesticides in Alberta's groundwater (Munira et al 2018), urban storm water (Derksen et al 2015), and WWTP effluents (Kerr et al 2008). To our knowledge, none has looked at the occurrence of pesticides in all regions of Alberta at the watershed scale using a time-of-travel survey (in which sampling is performed as a conceptual parcel of the water flows from its headwaters to its confluence, and tributaries and effluents are sampled as they contribute to the parcel) to evaluate point-source pesticide contributions and to determine whether or not loads are cumulative with multiple input sources as the parcels flow downstream.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

From peaks to prairies: a time-of-travel synoptic survey of pesticides in watersheds of southern Alberta, Canada

et al. 2019

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A time-of-travel synoptic survey was conducted in August 2014 to assess pesticide occurrence in major river subbasins of southern Alberta, Canada. We collected 155 water samples from Alberta's South Saskatchewan River Basin (Bow, Oldman, Red Deer, and South Saskatchewan river subbasins) and analysed them for 106 pesticides. Samples were collected from mainstems (rivers) as well as tributaries and effluents (point sources) discharging into the rivers in an estimated timeof-travel to capture agricultural and urban contributions as the water flowed eastward from headwaters in the Rocky Mountains. The aim of the study was to assess point-source contributions of pesticides to Alberta's South Saskatchewan River Basin mainstems during low flow conditions. In addition to examining differences in pesticide contributions among source type and subbasins, the cumulative effect of inputs on the mainstem rivers, the influence of land use, and seasonality of pesticides in select effluents was analysed. We detected 17 pesticides and 1 metabolite, reflecting runoff from agricultural and urban land use. Pesticide detection frequency was significantly higher in effluents than in tributaries and mainstems, and pesticides were detected in effluents in summer and winter. Our evaluation of land-use relationships highlighted the influence of agriculture on pesticide occurrence in these aquatic agroecosystems. To our knowledge, this is the first watershed-wide time-of-travel survey of pesticides conducted in southern Alberta to measure contributions of pesticide loads from effluents and tributaries to the mainstems in all regions of Alberta's South Saskatchewan River Basin.

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Trace organic compounds in rivers, streams, and wastewater in southeastern Alberta, Canada

Cited by 16 publications

References 37 publications

Secondary Effects of Antibiotics on Microbial Biofilms

Secondary Effects of Antibiotics on Microbial Biofilms

Fully-Automated SPE Coupled to UPLC-MS/MS Method for Simultaneous Detection of Trace Sulfonamides, Quinolones, and Macrolide antibiotics in Water

From peaks to prairies: a time-of-travel synoptic survey of pesticides in watersheds of southern Alberta, Canada

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