Occurrence and fate of triclosan and triclocarban in a subtropical river and its estuary

Lv, Min; Sun, Qian; Xu, Houchao; Lin, Lifeng; Chen, Meng; Yu, Chang‐Ping

doi:10.1016/j.marpolbul.2014.07.065

Cited by 44 publications

(5 citation statements)

References 39 publications

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“…Therefore, the concentrations of 4-NP in the Shijing River are considered to be very high compared to reported values in other parts of the world, suggesting a high consumption of nonylphenol ethoxylates in this region and/or by poorly operating WWTPs.The antimicrobials, TCC and TCS, were detected at all sampling sites both during wet and dry seasons, which is consistent with the extensive usage of these two chemicals in China (Zhao et al, 2013;Zhang et al, 2015b). The maximum concentrations of TCC (210 ng/L) and TCS (282 ng/L) in the water samples were higher than most corresponding reported concentration data worldwide (not detected (n.d)-75 ng/L for TCC and n.d-285 ng/L for TCS) (e.g., Kantiani et al, 2008;Kumar et al, 2010;Katz et al, 2013;Montagner et al, 2013;Gautam et al, 2014;Lv et al, 2014). Among acid pharmaceuticals, non-steroidal anti-inflammatory drugs of ibuprofen and diclofenac are the compounds with the highest detection frequencies, followed by clofibric acid and indomethacin.…”

Section: Occurrence Of Edcs and Ppcps In Surface Water And Sedimentssupporting

confidence: 81%

Ecological risks of personal care ingredients for subtropical benthic communities

Peng¹

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Pseudokirchneriella subcapitata Algae 72 h, Growth inhibition, NOEC 0.53 (Tamura et al. 2013) Daphnia magna Crustacean 21 d, Reproduction, NOEC 40 (Orvos et al. 2002) Daphnia magna Crustacean 21 d, Survival, NOEC 200 (Orvos et al. 2002) Ceriodaphnia dubia Crustacean 7 d, Survival, NOEC 50 (Orvos et al. 2002) Ceriodaphnia dubia Crustacean 7 d, Survival, NOEC 339 (Orvos et al. 2002) Ceriodaphnia dubia Crustacean 8 d, Reproduction, NOEC 30 (Tamura et al. 2013) Ceriodaphnia dubia Crustacean 7 d, Reproduction, NOEC 6 (Orvos et al. 2002) Ceriodaphnia dubia Crustacean 7 d, Reproduction, NOEC 182 (Orvos et al. 2002

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Section: Occurrence Of Edcs and Ppcps In Surface Water And Sedimentssupporting

confidence: 81%

Ecological risks of personal care ingredients for subtropical benthic communities

Peng¹

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“…Concentrations of TCC in the environment are found at concentrations of parts per trillion in surface waters and parts per million for biosolids. TCC was detected in surface waters in concentrations between 0.05 and 6.75 ng/L mainly in China and the USA [1,8], corresponding to the high use of personal and domestic hygiene and cosmetic products. Maximum concentrations were detected in countries such as India and South Africa, respectively, at concentrations of 1119 and 360 ng/L [9].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Chemical Composition of Natural Waters about the Triclocarban Sorption on Pristine and Irradiated MWCNTs

et al. 2023

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The influence of the chemical composition of natural waters on triclocarban (TCC) sorption on pristine and irradiated multi-walled carbon nanotubes (MWCNTs) at different temperatures was studied. Natural waters have been characterized in terms of the concentrations of cations and anions, pH, and electric conductivity. The sorption process of TCC on MWCNTs is influenced by both the chemical composition of natural waters and the variation of the temperature. The adsorption capacity of TCC on pristine and irradiated MWCNTs in the studied natural waters increased by increasing the temperature. The increase of the concentration of monovalent cations (Na+ and K+) in natural waters determined a significant decrease of the adsorption capacity of TCC on both pristine and irradiated MWCNTs while the increase of the bivalent cations (Ca2+ and Mg2+) determined an easy increase adsorption capacity. Freundlich and Langmuir models were selected to describe the steady adsorption of the TCC on the pristine and irradiated MWCNTs.

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“…In recent decades, numerous studies have reported the occurrence of TCC at up to 100% detection frequencies in various environments around the world including the United States and China, especially in WWTP effluents, surface waters, biosolids, and sediments (Tables S1 and S2). − Specifically, sediments receiving treated and untreated wastewater inputs are known to contain TCC in high μg/kg to low mg/kg quantities . The average accumulative concentrations of TCC can reach up to 39 ± 59 and 25.2 ± 0.6 mg/kg in tested biosolids from the United States and China, respectively. , TCC has been ranked as one of the top 10 emerging environmental contaminants globally .…”

Section: Introductionmentioning

confidence: 99%

Functional Characterization of a Novel Amidase Involved in Biotransformation of Triclocarban and its Dehalogenated Congeners in Ochrobactrum sp. TCC-2

Yun

Liang

Qiu

et al. 2016

Environ. Sci. Technol.

102

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Haloaromatic antimicrobial triclocarban (3,4,4'-trichlorocarbanilide, TCC) is a refractory contaminant which is frequently detected in various aquatic and sediment environments globally. However, few TCC-degrading communities or pure cultures have been documented, and functional enzymes involved in TCC biodegradation hitherto have not yet been characterized. In this study, a bacterial strain, Ochrobactrum sp. TCC-2, capable of degrading TCC under both aerobic and anaerobic conditions was isolated from a sediment sample. A novel amidase gene (tccA), responsible for the hydrolysis of the two amide bonds of TCC and its dehalogenated congeners 4,4'-dichlorocarbanilide (DCC) and carbanilide (NCC) to more biodegradable chloroaniline or aniline products, was cloned and characterized. TccA shares low amino acid sequence identity (27 to 38%) with other biochemically characterized amidases and contains the conserved catalytic triad (Ser-Ser-Lys) of the amidase signature enzyme family. TccA was stable over a pH range of 5.0 to 10.0 and at temperatures lower than 60 °C, and it was constitutively expressed in strain TCC-2. In contrast to the halogenated TCC and DCC, the nonchlorinated NCC was the preferred substrate for TccA. TccA also had hydrolysis activity to a broad spectrum of amide bonds in herbicides, insecticides, and chemical intermediates. The constitutive expression and broad substrate spectrum of TccA suggested strain TCC-2 may be potentially useful for bioremediation applications.

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Occurrence and fate of triclosan and triclocarban in a subtropical river and its estuary

Cited by 44 publications

References 39 publications

Ecological risks of personal care ingredients for subtropical benthic communities

Ecological risks of personal care ingredients for subtropical benthic communities

The Influence of the Chemical Composition of Natural Waters about the Triclocarban Sorption on Pristine and Irradiated MWCNTs

Functional Characterization of a Novel Amidase Involved in Biotransformation of Triclocarban and its Dehalogenated Congeners in Ochrobactrum sp. TCC-2

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