Herbicidal triazines: Acute toxicity onDaphnia, fish, and plants and analysis of its relationships with structural factors

Marchini, Silvia; Passerini, Laura; Cesareo, D.; Tosato, Maria Livia

doi:10.1016/0147-6513(88)90029-2

Cited by 44 publications

(16 citation statements)

References 3 publications

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“…However, terbutryn is a herbicide, which means that no toxic effects on invertebrates were intended when the product was designed. This is supported by the reported effect concentrations of terbutryn for Daphnia magna (LC 50 (48 h) = 7.1 mg l −1 , Marchini et al 1988) and Lumbriculus variegatus (LC 50 (48 h) = 23.7 mg l −1…”

Section: Discussionsupporting

confidence: 71%

Herbicide indirectly reduces physiological condition of a benthic grazer

Rybicki¹,

Winkelmann²,

Hellmann³

et al. 2012

Aquat. Biol.

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Freshwater ecosystems are polluted with various environmental chemicals. For example, pesticides enter the aquatic environment via spray drift or surface runoff from catchment areas used for industrialised agriculture. In the present study, we investigated the response of the grazer−aufwuchs interaction when exposed to the herbicide terbutryn in a microcosm experiment. Terbutryn induced a trophic cascade with negative effects on grazers by inhibiting growth of primary producers. We determined a no-observed-effect concentration (measured as particulate organic carbon, NOEC POC ) of 0.21 µg l −1 for aufwuchs biomass and a lowest-observed-effect concentration (LOEC POC ) of 2.01 µg l −1. Furthermore, a shift in the aufwuchs community was detected in all terbutryn treatments nearly 4 wk after exposure, and this shift persisted until the end of the experiment in the treatment with the highest terbutryn concentration. In addition, reduced energy stores (triglycerides, TG) of the grazer Rhithrogena semicolorata (Heptageniidae: Ephemeroptera) were found (NOEC TG = 0.03 µg l ), which was interpreted as an indication of moderate starvation during the experiment. While starvation did not result in reduced larval growth as might have been expected, the ob served reduction of TG content in larvae (24%) is consistent with results from a separate experiment in which starvation alone induced a 15% reduction of TG content as well as reduced emergence, reduced size at emergence, and reduced egg production.

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Section: Discussionsupporting

confidence: 71%

Herbicide indirectly reduces physiological condition of a benthic grazer

Rybicki¹,

Winkelmann²,

Hellmann³

et al. 2012

Aquat. Biol.

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“…[3][4][5][6] They are often found in drinking water too. 7,8 The triazines (atrazine, prometryn, metribuzine) are applied by spraying, so polluted waters, resulting from the rinsing of spray containers, contain significant levels of these pesticides, at concentration in the range 10-100 ppm. 9 Typical volumes of highly contaminated rinse water per operator amount to about 10 3 m 3 annually.…”

Section: Introductionmentioning

confidence: 99%

Atrazine Toxicity Reduction Following H₂O₂/TiO₂‐Photocatalyzed Reaction and Comparison with H₂O₂‐Photolytic Reaction

Campanella

Vitaliano

2006

Annali di Chimica

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Summary -An atrazine photodegradation study carried out by a Q-Panel suntest apparatus is reported in this work. H 2 O 2 /TiO 2 photocatalyzed reaction yield and parameters (time, irradiance, temperature, H 2 O 2 (40%) volume, TiO 2 amount) were exactly determined relating to the used atrazine concentration. An experimental kinetic study was performed to establish the reaction order in fixed conditions. Using a biosensor method, 10 -4 M Atrazine solution toxicity and final photocatalytic reaction solution toxicity were quantitatively determined. A consistent toxicity decrease was observed on passing from the analyte to the products of the photocatalytic reaction. An analogous photolytic reaction carried out in absence of TiO 2 , but in the same experimental conditions of time, irradiance, temperature and H 2 O 2 volume, brings to a toxicity increase.

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“…Atrazine toxicity to D. magna, for example, was reported to be in the range of 49 mg L -1 (Putt, 1991). 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).…”

Section: Whenmentioning

confidence: 99%

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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Herbicidal triazines: Acute toxicity onDaphnia, fish, and plants and analysis of its relationships with structural factors

Cited by 44 publications

References 3 publications

Herbicide indirectly reduces physiological condition of a benthic grazer

Herbicide indirectly reduces physiological condition of a benthic grazer

Atrazine Toxicity Reduction Following H₂O₂/TiO₂‐Photocatalyzed Reaction and Comparison with H₂O₂‐Photolytic Reaction

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

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Herbicidal triazines: Acute toxicity onDaphnia, fish, and plants and analysis of its relationships with structural factors

Cited by 44 publications

References 3 publications

Herbicide indirectly reduces physiological condition of a benthic grazer

Herbicide indirectly reduces physiological condition of a benthic grazer

Atrazine Toxicity Reduction Following H2O2/TiO2‐Photocatalyzed Reaction and Comparison with H2O2‐Photolytic Reaction

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

Contact Info

Product

Resources

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Atrazine Toxicity Reduction Following H₂O₂/TiO₂‐Photocatalyzed Reaction and Comparison with H₂O₂‐Photolytic Reaction