Occurrence and Cytotoxicity of Aliphatic and Aromatic Halogenated Disinfection Byproducts in Indoor Swimming Pool Water and Their Incoming Tap Water

Environmental Science & Technology, Год журнала: 2022, Номер 56(24), С. 17763 - 17775

Опубликована: Дек. 8, 2022

Disinfection byproducts (DBPs) in swimming pool water are of wide concern for public health. In this study, the occurrence five categories aliphatic halogenated DBPs, i.e., trihalomethanes (THMs), haloacetic acids (HAAs), haloacetonitriles (HANs), halonitromethanes (HNMs), and haloketones (HKs), six aromatic halophenols (HPs), halonitrophenols (HNPs), halohydroxy-benzaldehydes (HBALs), halohydroxybenzoic (HBAs), halobenzoquinones (HBQs), haloanilines (HAs), was examined seven indoor their incoming tap water. The correlations between DBP concentrations quality parameters were explored. Moreover, cytotoxicity DBPs tested with human hepatoma (HepG2) cells, concentration-cytotoxicity contributions different calculated. results demonstrate that 24 (5 THMs, 8 HAAs, 5 HANs, 4 HNMs, 2 HKs) 50 (9 HPs, HNPs, 9 HBALs, HBAs, 11 HBQs, HAs) present water, among which 41 detected first time. average order HAAs > HANs HKs THMs while those HNMs. significantly lower than following HBQs HPs HBAs HBALs HAs HNPs. followed HNMs HNPs HAs, possessing main (93.2% total) all categories.

Язык: Английский

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The occurrence, ecological risk, and control of disinfection by-products from intensified wastewater disinfection during the COVID-19 pandemic

The Science of The Total Environment, Год журнала: 2023, Номер 900, С. 165602 - 165602

Опубликована: Июль 20, 2023

Язык: Английский

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Occurrence and Ecological Risk Assessment of Highly Toxic Halogenated Byproducts during Chlorination Decolorization of Textile Printing and Dyeing Wastewater

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Сен. 26, 2024

Textile printing and dyeing wastewater is a substantial source of highly toxic halogenated pollutants because the chlorination decolorization. However, information on occurrence fate byproducts, which are produced by decolorization textile wastewater, very limited. In this study, six categories byproducts (haloacetic acids (HAAs), haloacetonitriles (HANs),

Язык: Английский

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Low-concentration of trichloromethane and dichloroacetonitrile promote the plasmid-mediated horizontal transfer of antibiotic resistance genes

Journal of Hazardous Materials, Год журнала: 2021, Номер 425, С. 128030 - 128030

Опубликована: Дек. 9, 2021

Disinfection by-products (DBPs) are one of the unintended consequences water disinfection that commonly detected in various environments. Although DBPs known to induce antimicrobial resistance via stimulation chromosomal mutations, it remains unclear whether low-concentration could stimulate conjugative transfer antibiotic genes (ARGs). The present study aimed investigate effect two typical DBPs, namely trichloromethane (TCM) and dichloroacetonitrile (DCAN), on RP4 plasmid Escherichia coli genera. results demonstrated exposure low concentrations TCM DCAN significantly stimulated ARGs, wherein application 25 μg/L 10 resulted maximum fold change ~5.5– ~6.0–fold, respectively, at 16 h exposure. Further, assessment underlying mechanisms revealed involvement intracellular reactive oxygen species generation, SOS response, increase cell membrane permeability, upregulation expression proteins related pilus ATP synthesis, gene expression. Our findings provided a better understanding hidden biological effects ecological risks environment, especially concerning their spread resistance.

Язык: Английский

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Molecular interactions between bovine serum albumin (BSA) and trihalophenol: Insights from spectroscopic, calorimetric and molecular modeling studies

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2022, Номер 287, С. 122054 - 122054

Опубликована: Окт. 28, 2022

Язык: Английский

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