&lt;b&gt;Copper sulfate acute ecotoxicity and environmental risk for tropical fish

Silva, Adilson Ferreira da; Cruz, Claudinei da; Rezende, Flavia Regina Lazaro de; Yamauchi, Alfredo Kohiti Feres; Pitelli, Robinson Antônio

doi:10.4025/actascibiolsci.v36i4.18373

Cited by 9 publications

(14 citation statements)

References 20 publications

(9 reference statements)

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“…In agreement with previous studies [ 32 , 33 ], we found that adult zebrafishes were more sensitive to copper than embryos. It should be emphasized that the fish development stage can significantly affect the response to copper, in line with other similar studies [ 31 , 32 , 33 ].…”

Section: Resultssupporting

confidence: 88%

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Acute Toxicity of Cu-MOF Nanoparticles (nanoHKUST-1) towards Embryos and Adult Zebrafish

Abramenko

Deyko

Abkhalimov

et al. 2021

IJMS

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Metal-organic frameworks (MOFs) demonstrate unique properties, which are prospective for drug delivery, catalysis, and gas separation, but their biomedical applications might be limited due to their obscure interactions with the environment and humans. It is important to understand their toxic effect on nature before their wide practical application. In this study, HKUST-1 nanoparticles (Cu-nanoMOF, Cu3(btc)2, btc = benzene-1,3,5-tricarboxylate) were synthesized by the microwave (MW)-assisted ionothermal method and characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) techniques. The embryotoxicity and acute toxicity of HKUST-1 towards embryos and adult zebrafish were investigated. To gain a better understanding of the effects of Cu-MOF particles towards Danio rerio (D. rerio) embryos were exposed to HKUST-1 nanoparticles (NPs) and Cu2+ ions (CuSO4). Cu2+ ions showed a higher toxic effect towards fish compared with Cu-MOF NPs for D. rerio. Both forms of fish were sensitive to the presence of HKUST-1 NPs. Estimated LC50 values were 2.132 mg/L and 1.500 mg/L for zebrafish embryos and adults, respectively. During 96 h of exposure, the release of copper ions in a stock solution and accumulation of copper after 96 h were measured in the internal organs of adult fishes. Uptake examination of the major internal organs did not show any concentration dependency. An increase in the number of copper ions in the test medium was found on the first day of exposure. Toxicity was largely restricted to copper release from HKUST-1 nanomaterials structure into solution.

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Section: Resultssupporting

confidence: 88%

“… *—Data are presented based on the copper concentration; in brackets for HKUST-1. ** literature data [ 31 , 32 ]. …”

Section: Figures Scheme and Tablementioning

confidence: 99%

Acute Toxicity of Cu-MOF Nanoparticles (nanoHKUST-1) towards Embryos and Adult Zebrafish

Abramenko

Deyko

Abkhalimov

et al. 2021

IJMS

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“…[46] CuCl 2 .3Cu(OH) 2 and Cu(OH) 2 were less toxic than copper sulfate to Labeo rohita (LC50;96 h D 3.15 mg L ¡1 ); [47] P. caudimaculatus (LC50;96 h D 0.05 mg L ¡1 ), B. rerio (LC50;96 h D 0.13 mg L ¡1 ) and H. eques (LC50;96 h D 0.16 mg L ¡1 ). [19] The association DC0.1%CuCl 2 .3Cu(OH) 2 was more toxic to L. minor (LC50;7 d < 0.01 mg L ¡1 ) and less toxic to H. eques (LC50;48 h D 18.97 mg L ¡1 ; 25.87-13.91 mg L ¡1 ). The bioindicators sensitivity to this association was as follows: L. minor > A. caroliniana > P. canaliculata > H. eques ( Table 1).…”

Section: Control Efficacy For the Unicellular Algae Ankistrodesmus Grmentioning

confidence: 94%

“…[18] Organisms from several levels of the food chain are used in the ecotoxicological evaluation, accordingly to features such as sensitivity, management complexity, reproductive cycle duration, geographical distribution, and size. Among some of the bioindicators used in the ecotoxicological assessments are the fish, [19] the snail [20] and aquatic macrophytes. [21,22] Thus, the aim of this research was to evaluate the efficacy of diquat, copper oxychloride and copper hydroxide (Cu(OH) 2 ), and the associations of the herbicide with 0.1% of copper oxychloride and 0.1% of copper hydroxide in the control of the unicellular algae Ankistrodesmus gracilis and the filamentous algae Pithophora kewesis, and to estimate the 50% acute toxicity (LC50) for Hypressobrycon eques, Pomacea canaliculata, Lemna minor and Azolla caroliniana.…”

Section: Introductionmentioning

confidence: 99%

Diquat associated with copper sources for algae control: Efficacy and ecotoxicology

Garlich

Cruz

Silva

et al. 2016

Journal of Environmental Science and Health, Part B

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The aims of this research were to evaluate the efficacy of copper oxychloride (CuCl2.3Cu(OH)2), copper hydroxide (Cu(OH)2) and diquat (1.1'-ethylene-2.2'-bipyridyldiylium dibromide), isolated and in association with 0.1% of both copper sources, in the control of the unicellular algae Ankistrodesmus gracilis and the filamentous algae Pithophora kewesis, and to determine the acute toxicity of the tested chemicals in Hyphressobrycon eques, Pomacea canaliculata, Lemna minor and Azolla caroliniana. The efficacy was estimated by the methods of chlorophyll a and pheophytin a readings, changed into growth inhibition percentage. Both algae were exposed to the following concentrations: 0.2; 0.4; 0.8; 1.2 mg L(-1) of diquat and its association with the copper sources; and 0.1; 0.3; 0.5; 0.7; 1.0 and 1.5 mg L(-1) in the isolated applications of copper hydroxide and copper oxychloride. An untreated control was kept. The acute toxicity was estimatedby 50% lethal concentration (LC50). The copper sources were effective for A. gracilis control, at rates as high as 0.1 mg L(-1) (>95% efficacy). Isolated diquat and its association with copper hydroxide were both effective at rates as high as 0.4 mg L(-1), with 95 and 88% control efficacy, respectively. The copper oxychloride was effective at 0.2 mg L(-1), with 93% efficacy. None of the tested chemicals and associations was effective on P. kewesis control. The most sensitive non target organism to the tested chemicals was L. minor; the less sensitive was H. eques.

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“…Considering the treated reactors declined significantly in a trend proportional to dose, the algaecide treatment might have impacted other members of the photosynthetic community. The impact of algaecide on non-target species is a largely understudied topic; however, eco-toxicological impact from copper sulfate has been well documented [6,20,22,29]. Reactors treated with half and quarter dose EarthTec depicted a rebound in chl-a of 254% (p < 0.05) and 544% (p < 0.05), respectively, from 7 to 14 days (Fig.…”

Section: Bench-scale Results Of Cyanobacteria Suppression With Earthtecmentioning

confidence: 99%

Bench-scale assessment of three copper-based algaecide products for cyanobacteria management in source water

et al. 2021

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Three copper-based algaecide products were investigated for use in a drinking water source to address cyanobacteria growth. Bench-scale experiments were used to determine the optimal dose of each product given Lake Rockwell’s indigenous population and reservoir-specific characteristics. The optimal dose of Cutrine Ultra was determined to be a quarter dose (corresponding to 0.125 mg/L Cu) as it decreased 55% of the cyanobacteria population with limited release of microcystin and minimal rebound in the cyanobacteria population. The optimal dose for EarthTec was determined to be a half dose (i.e., 0.5 mg/L). The full dose was optimal for SeClear (1 mg/L Cu). The optimal doses had extracellular microcystin levels of 0.99 ± 0.09 µg/L (quarter dose Cutrine Ultra), 3.69 ± 0.43 µg/L (half dose EarthTec) and 0.92 ± 0.26 µg/L (full dose SeClear) by day 2. EarthTec and Cutrine Ultra facilitated a similar overall response, and the cyanobacteria population was predominately suppressed in the initial 2 days following treatment and then increased between 7 and 14 days after treatment (i.e., rebound). Both the suppression within the first 2 days and the rebound between 7 and 14 days after treatment were a function of dose (e.g., lower dose, larger increase in rebound). Although SeClear suppressed the cyanobacteria population during the initial 2 days after treatment (42,000 ± 3240 cells/mL at the baseline to 4822 ± 841), the cyanobacteria population rebounded significantly (p < 0.05) between 2 and 7 days after treatment.

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<b>Copper sulfate acute ecotoxicity and environmental risk for tropical fish

Cited by 9 publications

References 20 publications

Acute Toxicity of Cu-MOF Nanoparticles (nanoHKUST-1) towards Embryos and Adult Zebrafish

Acute Toxicity of Cu-MOF Nanoparticles (nanoHKUST-1) towards Embryos and Adult Zebrafish

Diquat associated with copper sources for algae control: Efficacy and ecotoxicology

Bench-scale assessment of three copper-based algaecide products for cyanobacteria management in source water

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