Widespread Surveillance of Emerging Contaminants in the Yamuna River Basin: Evaluation of Surface Water, Sediments, Groundwater, and Aquatic Plants

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(5), P. 2044 - 2056

Published: April 15, 2024

Anthropogenic activities release hundreds of emerging contaminants (ECs) into the environment. Treated or partially treated wastewater carries ECs, metabolites, and transformation products (TPs) to nearby surface waters, contaminating majority river ecosystem. The present study discussed occurrence 32 ECs in different environmental matrices Yamuna River Basin including wastewater, water, sediments, groundwater, aquatic biota. concentration estrone was detected at highest concentrations ranging from not 28,532.2 ng/L aqueous matrices, while solid ranged 504,274.6 ng/kg. Apart estrone, 17β estradiol, bisphenol A, caffeine were also elevated levels all sample with equal 2552.2, 4500.5, 5562.8 ng/L, respectively, samples 153,2.1 454,451.7, 213,916.6 ng/kg, samples. Reports on biota, especially plants, are sparse require attention. Bioaccumulation factors between sediment biota highlighted higher affinity toward identified 21 metabolites TPs water

Language: Английский

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Fermentation broth from fruit and vegetable waste works: Reducing the risk of human bacterial pathogens in soil by inhibiting quorum sensing

Environment International, Journal Year: 2024, Volume and Issue: 188, P. 108753 - 108753

Published: May 15, 2024

Fermentation broth from fruit and vegetable waste (FFVW) has demonstrated remarkable ability as a soil amendment in reducing antibiotic resistance genes (ARGs) pollution. However, the potential of FFVW to mitigate other microbial contamination such human bacterial pathogens (HBPs) virulence factor (VFGs), which are closely associated with health, remains unknown. In this study, metagenomic analysis revealed that reduced HBPs high-risk ARGs VFGs including Klebsiella pneumoniae (reduced by 40.4 %), Mycobacterium tuberculosis 21.4 %) Streptococcus 38.7 %). Correspondingly, VFG abundance decreased 3.40 copies/cell 2.99 copies/cell. Further illustrated these was mainly attributed inhibition quorum sensing (QS). QS signals, synthesis rpaI luxS, well receptor rpfC fusK, resulting risk VFGs. The pure culture experiment expression related QS, VFGs, mobile genetic elements (MGEs) were downregulated Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli K. treated FFVW, consistent result analysis. This study suggested an environmentally friendly approach for controlling VFGs/ARGs-carrying HBPs, is crucial both health under framework "One Health".

Language: Английский

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Occurrence and human exposure risk of antibiotic resistance genes in tillage soils of dryland regions: A case study of Northern Ningxia Plain, China

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135790 - 135790

Published: Sept. 10, 2024

Language: Английский

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Elevated Toxicity and High-Risk Impacts of Small Polycyclic Aromatic Hydrocarbon Clusters on Microbes Compared to Large Clusters

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Polycyclic aromatic hydrocarbons (PAHs) are widespread contaminants that can accumulate in microorganisms, posing significant ecological risks. While previous studies primarily focused on PAH concentrations, the impacts of self-clustering have been largely overlooked, which will lead to inaccurate assessments their This study evaluates toxic effects four prevalent clusters microbes with an emphasis comparing cluster sizes. Results revealed over 95% PAHs form aquatic environment, smaller more likely at lower concentrations and fewer benzene rings. To quantify understand underlying mechanisms, single-cell Raman-D2O was employed link bacterial phenotypes transcriptomic profiles. Bacteria exposed showed a 1%–10% reduction metabolic activity, associated 1.8–2.9-fold increase intracellular reactive oxygen species (ROS). Furthermore, when clusters, expression genes related ROS response efflux pumps upregulated by up 6.33-fold 4.97-fold, respectively, suggesting pose greater toxicity microbes. These findings underscore potentially overlooked risks environmental systems deepen our understanding fate these contaminants.

Language: Английский

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Antibiotic resistance at environmental multi-media interfaces through integrated genotype and phenotype analysis

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136160 - 136160

Published: Oct. 15, 2024

Language: Английский

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