Quinolones antibiotics in the Baiyangdian Lake, China: Occurrence, distribution, predicted no-effect concentrations (PNECs) and ecological risks by three methods

Zhang, Lulu; Shen, Lei; Qin, Shan; Cui, Jiansheng; Liu, Yong

doi:10.1016/j.envpol.2019.113458

Cited by 56 publications

(25 citation statements)

References 46 publications

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“…Extensively used different fluoroquinolones (FQs) are detected in industrial and municipal wastewater as well as in surface and ground water resources in different countries of the world viz. Argentina, China, Egypt, India, Iran, Pakistan, and Spain [2][3][4][5][6][7][8][9]. Moreover, Levofloxacin (LFX) which is one of the widely used FQs class antibiotic for different bacterial infections is observed in wastewater due to its persistency to biodegradation [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Varma

Gandhi

2021

Advances in Wastewater Treatment II

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Degradation performance of Cu-TiO2 photocatalytic materials against a widely used antibiotic drug levofloxacin (LFX) was investigated under visible LED light source of 40 W. Cu-TiO2 (0.25-1.0 wt%) nanomaterials are prepared through reverse micelle mediated modified sol-gel method. Characterization of synthesized Cu-TiO2 samples are performed by XRD, UV-Vis, and DLS techniques. The doping of 0.5 wt% copper in TiO2 shown lower crystallite size (5.79 nm) and visible light absorption characteristics with energy band gap of 2.84 eV. 0.5 wt% Cu-TiO2 photocatalyst has shown significant LFX degradation of 75.5% with catalyst loading of 1 g/L and initial pollutant concentration of 50 mg/L.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Varma

Gandhi

2021

Advances in Wastewater Treatment II

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“…However, the specific relationship between the composition of CDOM and bacterial community structure and functional composition in Baiyangdian Lake in northern China is unclear. Previous studies of Baiyangdian Lake mainly focused on water quality evolution [ 12 ], ecological risk assessment [ 13 ], aquatic macrophyte variation [ 14 ], antibiotic distribution [ 15 ], and pollutant release fluxes [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Linking Shifts in Bacterial Community Composition and Function with Changes in the Dissolved Organic Matter Pool in Ice-Covered Baiyangdian Lake, Northern China

Zhou

Sun

et al. 2020

Microorganisms

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The relationship between CDOM (Chromophoric dissolved organic matter) and the bacterial community was investigated in ice-covered Baiyangdian Lake. The results showed that environmental parameters significantly differed in Baiyangdian Lake, whereas a-diversity was not significantly different. Moreover, the microbial and functional communities exhibited significant differences, and T (Temperature), pH, ORP (Oxidation-reduction potential), DO (Dissolved oxygen), NO3−-N, NH4+-N, and Mn (Manganese) were the main environmental factors of these differences, based on redundancy analysis and the Mantel test. Biomarkers of the microbial and functional communities were investigated through linear discriminant analysis effect size and STAMP analysis. The number of biomarkers in the natural area was highest among the typical zones, and most top functions were related to carbohydrate metabolism. Two protein-like components (C1 and C2) and one humic-like component (C3) were identified by parallel factor analysis, and C1 was positively related to C2 (R = 0.99, p < 0.001), indicating the same sources. Moreover, CDOM significantly differed among the typical zones (p < 0.001). The high biological index, fluorescence index, β:α, and low humification index indicated a strong autochthonous component and aquatic bacterial origin, which was consistent with the results of UV-vis absorption spectroscopy. Network analysis revealed non-random co-occurrence patterns. The bacterial and functional communities interacted closely with CDOM. The dominant genera were CL500-29_marine_group, Flavobacterium, Limnohabitans, and Candidatus_Aquirestis. Random forest analysis showed that C1, C2, and C3 are important predictors of α- and β-diversity in the water bacterial community and its functional composition. This study provides insight into the interaction between bacterial communities and DOM (Dissolved organic matter) in ice-covered Baiyangdian Lake.

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“…The risk assessment method we used is the AF method. This method has some limitations (Zhang et al., 2012; Zhang, Shen, Qin, Cui, & Liu, 2019). First, NOEC and EC50 data were collected from the literature (Agerstrand et al., 2015), and the PNEC values were calculated based on some species’ toxicity data in our study.…”

Section: Resultsmentioning

confidence: 99%

“…Second, the combined risk of these antibiotics and estrogen compounds was not considered. Third, the AF method is based on single‐species toxicity tests in the food web (Zhang, Shen, et al., 2019), and it cannot determine the indirect ecological risk of antibiotics and estrogen. Hence, for future studies, a model such as AQUATOX model is suggested to assess the direct as well as indirect ecological risks of chemicals (European Commission, 2011; Zhang, Shen, et al., 2019).…”

Section: Resultsmentioning

confidence: 99%

Co‐occurrence characteristics of antibiotics and estrogens and their relationships in a lake system affected by wastewater

2020

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Antibiotics and estrogens are recognized as emerging contaminants in the water environment because of their potentially adverse effects on aquatic ecosystems. The concentrations of four steroid estrogens (17α-estradiol, 17βestradiol, estrone, and estriol) and eight antibiotics (norfloxacin, levofloxacin, ciprofloxacin, enrofloxacin, metronidazole, sulfapyridine, doxycycline, and sulfamethoxazole) in the Chaohu Lake basin in Anhui province, China, were analyzed along with adjacent wastewater. The levels of the target antibiotics and estrogens were below detection limits (not detected [nd])-89.86 and nd-118.09 ng L −1 , respectively, in the lake water. All of the target antibiotics and estrogens were detected in sediment, and the concentrations ranged widely (nd-35,544 and nd-16,344 ng kg −1 , respectively). Antibiotics and estrogens varied spatially in the study area and mostly came from untreated wastewater. Antibiotics and estrogens were associated with water parameters such as pH and total nitrogen. A significant positive correlation was observed between estriol and levofloxacin concentrations (r = .65; p < .01), indicating that levofloxacin from the same source might have inhibited the microbiological degradation of estriol in the surface water. Overall, the estrogens pose a more severe risk than antibiotics to the Chaohu Lake system. However, co-occurrence of antibiotics may affect the fate of estrogens in the same lake media. More attention should be given to estrogens than to antibiotics in wastewater-affected lake systems.

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Quinolones antibiotics in the Baiyangdian Lake, China: Occurrence, distribution, predicted no-effect concentrations (PNECs) and ecological risks by three methods

Cited by 56 publications

References 46 publications

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Linking Shifts in Bacterial Community Composition and Function with Changes in the Dissolved Organic Matter Pool in Ice-Covered Baiyangdian Lake, Northern China

Co‐occurrence characteristics of antibiotics and estrogens and their relationships in a lake system affected by wastewater

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