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

Exploring the Mysteries of Nitrogen-Transforming Microorganisms: Investigating the Potential Role of Aerobic Denitrification in Nitrogen Cycling in Reservoir Water Sources

Environmental Science & Technology Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Language: Английский

Removal performance and health risk assessment of household water purifiers for different antibiotics in tap water in Shanghai

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133152 - 133152

Published: April 1, 2025

Language: Английский