Toxicity enhancement of nano titanium dioxide to Brachionus calyciflorus (Rotifera) under simulated sunlight and the underlying mechanisms

Yang, Liu; Xu, Jinqian; Gao, Hua-Hua; Dai, Shiniu; Liu, Lingli; Xi, Yi-Long; Zhang, Gen; Wen, Xin-Li

doi:10.1016/j.ecoenv.2023.114556

Cited by 3 publications

(2 citation statements)

References 47 publications

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“…However, previous studies based on acute or chronic bioassay have proved that 6PPD-Q is less harmful to Gobiocypris rarus ( sh), D. magna (cladocera) and Brachionus calyci orus (rotifer) than 6PPD (Hiki et al, 2021;Di et al, 2022; Klauschies and Isanta-Navarro, 2022), indicating that the high sensitivity for 6PPD-Q is species-speci c and the environmental risk of 6PPD could not be overlooked. Here, we used an aquatic invertebrate D. magna as the test animal to explore the chronic toxicity of 6PPD at the environmental concentrations (no more than 20 µg/L) due to three reasons, including 1) D. magna is an excellent aquatic invertebrate for screening the toxicity of chemicals (Liu et al, 2007), 2) environmental 6PPD concentration did not exhibit any negative effects on B. calyci orus (Klauschies and Isanta-Navarro, 2022), which shares similar food niche with D. magna and is also often used in ecotoxicology (Yang et al, 2023), and 3) some aquatic invertebrate tests for acute oral toxicity in humans have been shown to be better than the rat LD 50 test for some chemicals (Liu et al, 2007).…”

Section: Chronic Toxicity Of 6ppd Alone In F0 Generationmentioning

confidence: 99%

The chronic toxicity and intergenerational effects of environmental concentration of N-(1,3-dimethylbutyl)-N’- phenyl-p-phenylenediamine (6PPD) alone and the mixture of 6PPD and Zn 2+ to Daphnia magna (Cladocera)

Yang,

Liu,

Shi

et al. 2024

Preprint

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N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) and Zn2+ extensively used in the manufacturing process of tires, can be frequently detected in freshwater. However, the chronic toxicity of environmental 6PPD concentrations remains uncertain, and the intergenerational effects of single treatment of 6PPD and joint exposure of 6PPD and Zn2+ at environmental level are still unknown. In this study, the chronic toxicity and intergenerational effects of environmental concentrations of 6PPD (0.02-20 µg/L) and the mixture of 6PPD and Zn2+ (5 µg/L) were conducted based on three-generation bioassays using Daphnia magna. In F0, 6PPD produced a hormesis effect on reproduction of D. magna, and a dose-response relationship was observed for the total number of offspring. In the presence of Zn2+, the reproduction toxicity of 6PPD was exacerbated. Across three generations, the degenerative maternal effect was concurrently observed in the 0.02 µg/L 6PPD alone and the combined treatment of 0.02 µg/L 6PPD and Zn2+, but the adaptive maternal effect was simultaneously shown in the single and the joint exposures with 20 µg/L 6PPD. However, the grandmaternal effect only occurred in the co-exposure treatment with 20 µg/L 6PPD, suggesting that Zn2+ could be capable to stimulate the potential toxicity of 6PPD. Our study would provide the first insight into the intergenerational effects of 6PPD alone and the mixture of 6PPD and heavy metal at environmentally relevant concentrations, and could be conducive to understand the environmental risk of tire-derived chemicals due to the synergistic effect of 6PPD and Zn2+ and the delayed toxicity effect across generations.

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Section: Chronic Toxicity Of 6ppd Alone In F0 Generationmentioning

confidence: 99%

The chronic toxicity and intergenerational effects of environmental concentration of N-(1,3-dimethylbutyl)-N’- phenyl-p-phenylenediamine (6PPD) alone and the mixture of 6PPD and Zn 2+ to Daphnia magna (Cladocera)

Yang,

Liu,

Shi

et al. 2024

Preprint

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“…Therefore, if rotifer populations are adversely affected by a toxin, the function of aquatic ecosystems could be altered [17]. Rotifers have been used as model organisms to evaluate the toxicity of many environmental chemicals, including heavy metals [18], organic compounds [19], and nano-sized materials [20]. And increased supply of algal food could effectively alleviate the negative effects of toxicants to rotifers [21][22].…”

mentioning

confidence: 99%

Effects of Tribromomethane on the Life-Table Demography of the Freshwater Rotifer <i>Brachionus calyciflorus</i> Pallas under Different Algal Densities

Li¹,

Xu²,

Tao³

et al. 2023

Pol. J. Environ. Stud.

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One of the most adopted methods to inactivate coronaviruses (COVID-19) is to use chlorine-containing disinfectants. Unfortunately, as a result, large amounts of disinfection byproducts (DBPs) containing chlorine can enter the river through the sewage treatment system [1]. It is even worse that chlorination is still the most widely applied disinfection method to inactivate pathogenic microorganisms for water treatment. Trihalomethanes (THMs), e.g. trichloromethane (TCM), bromodichloromethane

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Metal-based nanomaterials in aquatic environments: What do we know so far about their ecotoxicity?

Ale,

Andrade,

Gutierrez

et al. 2024

Aquatic Toxicology

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Toxicity enhancement of nano titanium dioxide to Brachionus calyciflorus (Rotifera) under simulated sunlight and the underlying mechanisms

Cited by 3 publications

References 47 publications

The chronic toxicity and intergenerational effects of environmental concentration of N-(1,3-dimethylbutyl)-N’- phenyl-p-phenylenediamine (6PPD) alone and the mixture of 6PPD and Zn 2+ to Daphnia magna (Cladocera)

The chronic toxicity and intergenerational effects of environmental concentration of N-(1,3-dimethylbutyl)-N’- phenyl-p-phenylenediamine (6PPD) alone and the mixture of 6PPD and Zn 2+ to Daphnia magna (Cladocera)

Effects of Tribromomethane on the Life-Table Demography of the Freshwater Rotifer <i>Brachionus calyciflorus</i> Pallas under Different Algal Densities

Metal-based nanomaterials in aquatic environments: What do we know so far about their ecotoxicity?

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