Chronic toxicity of tebuthiuron to an alga (Selenastrum capricornutum), a cladoceran (Daphnia magna), and the fathead minnow (Pimephales promelas)

Meyerhoff, Roger D.; Grothe, Douglas W.; Sauter, Scott; Dorulla, G.K.

doi:10.1002/etc.5620040513

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…Several researchers (Daniels and Allan, 1981;Ingersoll and Winner, 1982) have suggested that survival in chronic toxicity tests is the best index of toxicity because it is more sensitive and less variable than reproductive parameters. Day and Kaushik (1987), however, suggested that survival is only a good indicator when exposure to (Meyerhoff et al, 1985). * Significantly different from control (P < 0.05).…”

Section: Cladoceran Life-cycle Studymentioning

confidence: 87%

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Chronic Toxicity of Fenitrothion to an Algae (Nannochloris oculata), a Rotifer (Brachionus calyciflorus), and the Cladoceran (Daphnia magna)

Ferrando

Sancho

Andreu-Moliner

1996

Ecotoxicology and Environmental Safety

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Section: Cladoceran Life-cycle Studymentioning

confidence: 87%

“…Approximately 5 × 10 5 cells/ml of N. oculata were added daily to each beaker to feed the daphnids . The young cladocerans used in this test were the second or a successive brood from stock animals (Meyerhoff et al, 1985).…”

Section: Algal Assaymentioning

confidence: 99%

Chronic Toxicity of Fenitrothion to an Algae (Nannochloris oculata), a Rotifer (Brachionus calyciflorus), and the Cladoceran (Daphnia magna)

Ferrando

Sancho

Andreu-Moliner

1996

Ecotoxicology and Environmental Safety

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“…For simazine, 48 h-LC50s for D. magna were scored at 1 and 3.5 mg L -1 by Sanders (1970) and Marchini et al (1988), respectively. For tebuthiuron, D. magna toxicity was estimated to be 100 mg L -1 (Meyerhoff et al, 1985). Interactions between free chlorine, THMs and/or herbicides found in FW and TW in October 2010 cannot, however, be excluded as a possible explanation for at least some of the observed toxicity toward daphnids.…”

Section: Whenmentioning

confidence: 95%

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

Monteiro¹,

Silva²,

Messias³

et al. 2014

Rev. ambiente água

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Physicochemical and ecotoxicological measurements were employed to appraise the water quality of the Corumbataí River raw water (RW) intake, and that of its filtered (FW) and treated (TW) waters, processed by the Water Treatment Plant (WTP) of Piracicaba (SP, Brazil) during 2010. Some herbicides: ametrine, atrazine, simazine and tebuthiuron, were measured, with levels ranging from 0.01 to 10.3 µg L -1 . These were lower than those required to produce ecotoxicological effects to aquatic life based on published literature. Similarly, trihalomethanes, such as chloroform and bromodichloromethane produced as a result of the WTP process were also shown to be present in concentrations that would neither harm environmental nor human health. Elevated free chlorine concentrations found in FW and TW were credibly responsible for toxicity effects observed in algae and daphnids. (Pseudokirchneriella subcapitata and Daphnia magna). In contrast, results of toxicity testing conducted with Hydra attenuata suggested that this organism is resistant to free chorine and could be used for drinking water evaluations. Coupling bioassays with chemical analyses proved valuable to uncover putative cause-effect relationships existing between physical, chemical and toxic results, as well as in optimizing data interpretation of water quality.Keywords: herbicides residues, trihalomethanes, drinking water.Avaliações químicas e ecotoxicológicas em amostras de água antes e após serem processadas por uma Estação de Tratamento RESUMOAvaliações físico-químicas e ecotoxicológicas foram utilizadas para avaliar a qualidade de amostras da água do rio Corumbataí, água bruta (RW), filtrada (FW) e tratada (TW), 7Chemical and ecotoxicological assessments of water samples … Rev. Ambient. Água vol. 9 n. 1 Taubaté -Jan. / Mar. 2014 processadas pela Estação de Tratamento de Água (ETA) de Piracicaba (SP, Brasil), em 2010. Alguns resíduos de herbicidas, tais como: ametrina, atrazina, simazina e tebutiuron, foram medidos encontrando níveis entre 0,01-10,3 µg L -1 sendo esses menores do que os necessários para produzir efeitos ecotóxicos à vida aquática, com base na literatura publicada. Da mesma forma, trihalometanos, tais como: clorofórmio e bromodiclorometano produzido como resultados do processo da ETA foram também encontrados em concentrações que não prejudicam a saúde ambiental ou humana. Concentrações de cloro livre elevadas foram encontradas nas amostras de água FW e TW e foram os prováveis responsáveis pelos efeitos de toxicidade observados em algas e dáfnias (Pseudokirchneriella subcapitata, Daphnia magna). Por outro lado, resultados dos testes de toxicidade realizados com Hydra attenuata mostraram que este organismo é resistente a água clorado sendo um organismo potencial a ser utilizado para avaliações ecotoxicológicas em águas tratadas. Testes de toxicidade simultâneos com análises químicas revelaram úteis para descobrir relações de causa-efeito existentes entre supostos resultados tóxicos, físicos e químicos e, assim como na melhora de interp...

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“…Martin et al (2003) (Chu et al, 2005). Meyerhoff et al (1985) observed a lower length in D. magna exposed to the herbicide tebuthiuron than in blank control animals when the cladocerans were exposed to 44.2 mg/L herbicide. Hanazato (1998) indicated that the neonatal body size determines the size at maturation.…”

Section: Amino Acid Synthesis Inhibitorsmentioning

confidence: 72%

Adverse Effects of Herbicides on Freshwater Zooplankton

Rico‐Martínez¹,

Arias-Almeida²,

Pérez‐Legaspi³

et al. 2012

Herbicides - Properties, Synthesis and Control of Weeds

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Chronic toxicity of tebuthiuron to an alga (Selenastrum capricornutum), a cladoceran (Daphnia magna), and the fathead minnow (Pimephales promelas)

Cited by 11 publications

References 9 publications

Chronic Toxicity of Fenitrothion to an Algae (Nannochloris oculata), a Rotifer (Brachionus calyciflorus), and the Cladoceran (Daphnia magna)

Chronic Toxicity of Fenitrothion to an Algae (Nannochloris oculata), a Rotifer (Brachionus calyciflorus), and the Cladoceran (Daphnia magna)

Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

Adverse Effects of Herbicides on Freshwater Zooplankton

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