Cited by 67Pharmaceutical and Antibiotic Environmental ImpactsEnvironmental Chemistry and AnalysisWastewater Treatment and Nitrogen Removal

The effect of environmental and therapeutic concentrations of antibiotics on nitrate reduction rates in river sediment

Yan, Chen, Dinh, Quoc Tuc, Chevreuil, Marc, Garnier, Josette, Roose-Amsaleg, Céline, Labadie, Pierre, Laverman, Anniet M.·2013·Water Research

Abstract

The use of antibiotics in both human and veterinary medicine has led to increased presence of these compounds and antibiotic resistance in the environment. In this study, the effect of low, environmentally relevant (<mg L(-1)) and high therapeutic (>mg L(-1)) concentrations of vancomycin (VA), flumequine (FLU), and sulfamethoxazole (SMX) on nitrate reduction rates was studied in river sediments. Nitrate reduction rates were determined by supplying intact sediments for several weeks with both nitrate and antibiotics (ng L(-1), μg L(-1), and mg L(-1) concentrations), including a non-amended control. Furthermore the concentrations of the three investigated antibiotics were measured in the initial (natural) sediments and the sediments supplied with the antibiotics. The antibiotic concentrations in the sediments decreased (on average 62% for FLU and 93% for SMX) during the experiments, indicating loss of antibiotics due to sorption or (bio) degradation. Nitrate reduction rates were not affected by environmental concentrations of VA, FLU and SMX. FLU and SMX only partially inhibited nitrate reduction rates at high, therapeutic concentrations by 41 and 39% respectively. The three tested antibiotics significantly enhanced the production of nitrite, an intermediate in dissimilatory nitrate reduction. Nitrite production increased 1.9 and 1.4 fold for environmental VA concentrations (107 and 187 μg L(-1) respectively), application of 58 mg L(-1) SMX resulted in a 7.5 fold increase and augmented 16 and 8.5 fold in the presence of respectively 13 μg L(-1) and 52 mg L(-1) FLU. Even though inhibition of nitrate reduction rates was observed at therapeutic antibiotic concentrations, nitrate reduction proceeded under all experimental conditions, indicating the presence of resistance toward these antibiotics among the nitrate reducing bacteria. The accumulation of nitrite suggests that the nitrite reduction step was more affected than the overall nitrate reduction process.

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Crossref · 10.1016/j.watres.2013.04.025

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Authors
Yan, C., Dinh, Q. T., Chevreuil, M., Garnier, J., Roose-Amsaleg, C., Labadie, P., & Laverman, A. M.
Affiliations
  • Milieux environnementaux, transferts et interactions dans les hydrosystèmes et les sols (FR)
  • École Pratique des Hautes Études (FR)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Laverman, Anniet M.
Venue
Water Research
Publisher
Elsevier BV
Published
2013-07
Volume
47
Issue
11
Pages
3654-3662
ISSN
0043-1354 (ISSN-L)
OpenAlex
W2072596475
Cited by
67
References
51
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 7 · 2021: 2 · 2020: 4 · 2019: 10 · 2018: 6 · 2017: 5 · 2016: 12 · 2015: 5 · 2014: 1 · 2013: 2
FWCI
5.20
Type
journal article
Language
en
Open access
closed
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
  • Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
Keywords
river sediments, vancomycin, flumequine, sulfamethoxazole, nitrite production, dissimilatory nitrate reduction, antibiotic resistance, antibiotic sorption, antibiotic degradation, nitrate-reducing bacteria
MeSH terms
Anti-Bacterial Agents, Biodegradation, Environmental, France, Nitrates, Nitrites, Oxidation-Reduction, Sulfamethoxazole, Vancomycin, Water Pollutants, Chemical, Geologic Sediments, Fluoroquinolones, Rivers

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