Linking Antibiotic Residues and Antibiotic Resistance Genes to Water Quality Parameters in Urban Reservoirs: A Seasonal Perspective

Environments, Journal Year: 2025, Volume and Issue: 12(3), P. 96 - 96

Published: March 18, 2025

The interaction between antibiotics and antibiotic resistance genes (ARGs) in freshwater ecosystems has become a critical environmental concern. This study investigates seasonal variations of sulfonamide tetracycline their relationship with ARGs three urban reservoirs Nanjing, China: Pingshan Forest Park, Shanhu Lake Wetland Zhaoqiao Reservoir. Sampling was conducted May September 2023 to assess water quality, concentrations, ARG abundance. A total 30 samples were analyzed regard physicochemical parameters, heavy metals, antibiotics. quantitative PCR assay used measure the abundance relative 16S rRNA gene. Sulfonamide concentrations ranged from 120 ng/L, while tetracyclines 50–160 ng/L. Notably, sulfamethazine decreased significantly two (Shanhu Zhaoqiao, p < 0.05), other showed minimal variation, indicating persistent contamination agricultural runoff wastewater discharge. lower than September, being cumulatively genes. Strong correlations (r > 0.7) observed parameters like dissolved oxygen pH. High levels areas without nearby hospitals or pharmaceutical companies, implicating agriculture as major pollution source. By analyzing across eutrophic China, we highlight drivers proliferation propose targeted mitigation strategies.

Language: Английский

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Influence of saline water and heavy rain on the fate of chlorinated ethenes in groundwater characterized by compound-specific isotope and microbial data

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137238 - 137238

Published: Jan. 15, 2025

Language: Английский

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Innovative Hollow Fiber Membranes Decorated with Cobalt-Doped Mn₃O₄: Sustainable Solution for Effective Tetracycline Removal from Wastewater

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137551 - 137551

Published: Feb. 10, 2025

Language: Английский

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Boosting biodegradation and mineralization efficiencies of chlorinated VOCs: The synergy of H2O2 and biotrickling filtration

Chemosphere, Journal Year: 2025, Volume and Issue: 377, P. 144309 - 144309

Published: March 19, 2025

Language: Английский

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Enhancing reductive dechlorination of trichloroethylene in bioelectrochemical systems with conductive materials

Environmental Research, Journal Year: 2024, Volume and Issue: 261, P. 119773 - 119773

Published: Aug. 12, 2024

Language: Английский

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Sulfate-Driven Microbial Collaboration for Synergistic Remediation of Chloroethene-Heavy Metal Pollution

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122738 - 122738

Published: Nov. 2, 2024

Language: Английский

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Synergistic effects of accompanying heterotrophic bacteria on sulfide-based autotrophic denitrification

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 159070 - 159070

Published: Dec. 1, 2024

Language: Английский

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Selective electro-induced reduction using bionic BC@SA-Nafion particle electrodes in 3D systems and phytotoxicity assessment

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 356, P. 130003 - 130003

Published: Oct. 9, 2024

Language: Английский

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Enhancing Reductive Dechlorination of Trichloroethylene in Bioelectrochemical Systems with Conductive Materials

Published: Jan. 1, 2024

Language: Английский

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Differential interaction modes of As(III)/As(V) with microbial cell membrane induces opposite effects on organic contaminant biodegradation in groundwater

Environment International, Journal Year: 2024, Volume and Issue: 193, P. 109074 - 109074

Published: Oct. 14, 2024

Arsenic, a widespread toxic metalloid in groundwater, derives both from natural geological environment and industrial discharge, is extensively detected to be coexisting with organic contaminants, such as 2,4,6-trichlorophenol (TCP), prior concerned pollutant. During biological remediation of arsenic potentially intervenes microbial behaviors. This study found an opposite interference its two different valences (III V) on the degradation TCP by functional bacteria, Sphingomonas fennica K101. As(III) inhibited concentration-dependent manner (from 0.1-10 mg/L), maximum inhibition rate 35.5%, whereas As(V) exhibited promoting effects 13.8% 33.2% at 1 mg/L 10 mg/L, respectively. Employing field emission transmission electron microscopy, quantum chemical calculations, fourier-transform ion cyclotron resonance mass spectrometry metabolomic analysis, we unveil distinct interactions between cell membranes valence states. Exposure led significant accumulation cytoplasm, followed interaction intracellular ferritin (ferritin heavy chain 1), releasing iron ions generating ROS. Subsequently, it induced ferroptosis disrupted bacterial basal metabolism, thereby inhibiting biodegradation. Oppositely, bound critical component sphingosine triggered polymerization, increasing membrane permeability, which was evidenced measuring lactate dehydrogenase release. process facilitated transmembrane permeation reducing or extracellular secretion resistance. concurrently upregulated energy metabolism accelerated degradation. Our elucidates influence prevalent biodegradation efficacy, particularly amidst changing redox conditions associated varying valences.

Language: Английский

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