Sedimentary record of antibiotic accumulation in Minnesota Lakes

Kerrigan, Jill F.; Sandberg, Kyle D.; Engstrom, Daniel R.; LaPara, Timothy M.; Arnold, William A.

doi:10.1016/j.scitotenv.2017.10.130

Cited by 40 publications

(48 citation statements)

References 55 publications

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“…The larger watershed and sediment load of Lake Pepin are likely the main drivers of the observed difference in the magnitude of QAC accumulation rates, as hypothesized previously for similar observations with antibiotic accumulation at the same sites. 40 Similar temporal trends of QAC contamination as in Lake Pepin and Duluth Harbor were observed in cores from estuarine sediments in the New York City area for DADMACs, BACs, and ATMACs with maximum concentration approximately corresponding to 1990, 1965, and 1988, respectively. 25,27 In the same study area, C 10 -DADMAC concentrations continually increased over time from 1950 until 2010, 25 which is similar to temporal Fig.…”

Section: Qacs In Sediment Coressupporting

confidence: 60%

“…Four sediment cores were collected as part of a previous sampling campaign in August and September 2014 in Lake Pepin, Lake Winona, Lake Superior at Duluth Harbor, and Little Wilson Lake. 40 Additional surface sediment samples were collected along the bottom of Lake Winona in September 2014. 41 The sediment cores were vertically divided into 2-4 cm thick samples and dated by lead-210 methods (see Kerrigan et al 40 for details).…”

Section: Sediment Sample Collection and Preparationmentioning

confidence: 99%

“…40 Additional surface sediment samples were collected along the bottom of Lake Winona in September 2014. 41 The sediment cores were vertically divided into 2-4 cm thick samples and dated by lead-210 methods (see Kerrigan et al 40 for details). All sediment samples analyzed as part of this study were freeze-dried and stored at À20 C shortly aer sampling.…”

Section: Sediment Sample Collection and Preparationmentioning

confidence: 99%

“…Details on sampling procedures and locations, general sample characterization (e.g., organic carbon content), and calculation of sediment accumulation rates are given in previous publications. [40][41][42] Sediment extraction procedures for QAC analysis were adapted from Li and Brownawell 28 and performed in cleaned glassware. SPE was performed with the same procedure as described above for the effluent samples.…”

Section: Sediment Sample Collection and Preparationmentioning

confidence: 99%

“…This pattern was also reected in the concentrations of all BAC 45 The measured average sediment concentrations of Lake Winona can be converted to total QAC deposition rates with the known surface area and sediment accumulation rates. 40 Approximately 0.6 kg BACs, 5.2 kg DADMACs, 0.1 kg ATMACs, and 5.9 kg total QACs are deposited at the bottom of Lake Winona in one year. Estimating from the average concentrations determined in the 24 h effluent composites and a daily discharge of the WWTP located at Lake Winona of 3 million gallons, yearly inputs from wastewater into Lake Winona are approximately 0.9 kg BACs, 5.2 kg DADMACs, 3.0 kg ATMACs, and 9.9 kg total QACs.…”

Section: Qacs In Surface Sedimentsmentioning

confidence: 99%

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Section: Qacs In Sediment Coressupporting

confidence: 60%

Section: Sediment Sample Collection and Preparationmentioning

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A review of 82 papers published in 2018 is presented. The topics ranged from detailed descriptions of analytical methods, to fate and occurrence studies, to ecological effects and sampling techniques for a wide variety of emerging contaminants likely to occur in agricultural environments. New methods and studies on veterinary pharmaceuticals, microplastics, and engineered nanomaterials in agricultural environments continue to expand our knowledge base on the occurrence and potential impacts of these compounds. This review is divided into the following sections: Introduction, Analytical Methods, Fate and Occurrence, Pharmaceutical Metabolites, Anthelmintics, Microplastics, and Engineered Nanomaterials.Practitioner points New research describes innovative new techniques for emerging contaminant detection in agricultural settings. Newer classes of contaminants include human and veterinary pharmaceuticals. Research in microplastics and nanomaterials shows that these also occur in agricultural environments and will likely be topics of future work.

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‘Real-world’ contaminant exposure of sediment-dwelling biota is typically long-term, low-level and to multiple pollutants. However, sediment quality guidelines, designed to protect these organisms, relate only to single contaminants. This study uses radiometrically dated sediment cores from 7 English lakes with varying contamination histories to reconstruct temporal changes in likely risk to biota (herein termed ‘palaeotoxicity’). The Probable Effects Concentration Quotient (PEC-Q) approach was used to combine sediment concentrations from multiple contaminants (trace metals; PCBs; PBDEs) to determine risk allocated to metals and persistent organic pollutants (POPs) separately as well as combined (PEC-Q Mean-All). Urban-influenced lakes were considerably more contaminated, exceeding PEC-Q thresholds of 0.5 and 2.0 over long durations (some since the nineteenth century). This has been mainly due to metals (principally lead) and by factors of up to 10 for individual metals and by > 2 for PEC-Q Mean-Metals. In 6 out of 7 lakes, considerable reductions in risk associated with trace metals are observed since emissions reductions in the 1970s. However, at all lakes, PEC-Q Mean-POPs has increased sharply since the 1950s and at 5 out of 7 lakes now exceeds PEC-Q Mean-Metals. These organic pollutants are therefore now the dominant driver behind elevated contaminant risk to sediment-dwelling biota and recent temporal trends in PEC-Q Mean-All remain above threshold values as a result. Finally, PEC-Q Mean-All values were compared to standard biological toxicity tests for surface sediments at each site. While chironomid growth and daphniid reproduction were significantly reduced compared to controls at 5 out of 7, and all lakes, respectively, the scale of these reductions showed only limited quantitative agreement with predicted risk.Electronic supplementary materialThe online version of this article (10.1007/s10653-018-0080-5) contains supplementary material, which is available to authorized users.

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Sedimentary record of antibiotic accumulation in Minnesota Lakes

Cited by 40 publications

References 55 publications

Comprehensive screening of quaternary ammonium surfactants and ionic liquids in wastewater effluents and lake sediments

Comprehensive screening of quaternary ammonium surfactants and ionic liquids in wastewater effluents and lake sediments

Detection, occurrence, and fate of emerging contaminants in agricultural environments (2019)

Palaeotoxicity: reconstructing the risk of multiple sedimentary pollutants to freshwater organisms

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