Study on the persistence of ciprofloxacin and sulfamethoxazole in simulated drinking water systems DOI Creative Commons
Victoria Rilstone, Yves Filion, Pascale Champagne

et al.

ENVIRONMENTAL SYSTEMS RESEARCH, Journal Year: 2025, Volume and Issue: 14(1)

Published: April 26, 2025

Abstract The antibiotics ciprofloxacin and sulfamethoxazole are well-known to be persistent in drinking water, as they have been detected at the highest concentration frequency, respectively. These persist despite their residence time, water treatment, environmental conditions encountered distribution systems. To better understand this phenomenon, objectives of study were determine degradation kinetics a residual, sub-minimum inhibitory while exposed multi-species biofilms polyvinyl chloride (PVC) pipe, well examine effect on total cell count (TCC). results revealed that both continued after experimental period 12 days. Ciprofloxacin concentrations decreased by 31.1% (± 3.9%) 27.4% 7.7%) during exposure biofilm PVC-only control respectively, whereas 87.2% 15.8%) 3.6% 8.6%) control, Biofilm TCC increased significantly when ( p -value < 0.005), but showed no significant change > 0.05), which suggested enhanced formation. address gap antibiotic persistence research tracing concentrations, elucidating mechanisms sorption degradation, discussing relative implications. As continue interaction with may contribute long-term selection antibiotic-resistant bacteria, posing potential risks safety public health.

Language: Английский

Study on the persistence of ciprofloxacin and sulfamethoxazole in simulated drinking water systems DOI Creative Commons
Victoria Rilstone, Yves Filion, Pascale Champagne

et al.

ENVIRONMENTAL SYSTEMS RESEARCH, Journal Year: 2025, Volume and Issue: 14(1)

Published: April 26, 2025

Abstract The antibiotics ciprofloxacin and sulfamethoxazole are well-known to be persistent in drinking water, as they have been detected at the highest concentration frequency, respectively. These persist despite their residence time, water treatment, environmental conditions encountered distribution systems. To better understand this phenomenon, objectives of study were determine degradation kinetics a residual, sub-minimum inhibitory while exposed multi-species biofilms polyvinyl chloride (PVC) pipe, well examine effect on total cell count (TCC). results revealed that both continued after experimental period 12 days. Ciprofloxacin concentrations decreased by 31.1% (± 3.9%) 27.4% 7.7%) during exposure biofilm PVC-only control respectively, whereas 87.2% 15.8%) 3.6% 8.6%) control, Biofilm TCC increased significantly when ( p -value < 0.005), but showed no significant change > 0.05), which suggested enhanced formation. address gap antibiotic persistence research tracing concentrations, elucidating mechanisms sorption degradation, discussing relative implications. As continue interaction with may contribute long-term selection antibiotic-resistant bacteria, posing potential risks safety public health.

Language: Английский

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