Toxicity of atrazine and the products of its homogeneous photocatalytic degradation on the aquatic organisms Lemna minor and Daphnia magna

Klementová, Šárka; Hornychová, Lucie; Šorf, Michal; Zemanová, Jana; Kahoun, David

doi:10.1007/s11356-019-05710-0

Cited by 33 publications

(18 citation statements)

References 31 publications

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“…Difenoconazole and atrazine stand out as being among the most used pesticides in agriculture that have been detected as contaminants in the environment [ 3 , 4 ]. Difenoconazole (triazole family) is a fungicide that interferes with the biosynthesis of ergosterol in fungi, acting mainly on the demethylation of C 14 , which causes morphological and functional alterations of the cell wall [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Toxicity of Difenoconazole and Atrazine and Their Photodegradation Products on Aquatic Biota: Environmental Implications in Countries Lacking Good Agricultural Practices

Herrera

Iñiguez–Armijos

Alcarria

et al. 2023

Toxics

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Agriculture is fundamental for human development, but it may also have a range of unwanted effects on ecosystems when pesticides inadvertently enter the environment. We determined the toxicity of difenoconazole and atrazine, as well as their photodegradation products, on the bioindicators Lemna minor and Daphnia magna. For L. minor, we assessed the number of leaves, biomass, and chlorophyll content exposed to different concentrations of difenoconazole (0–8 mg/L) and atrazine (0–3.84 mg/L). For D. magna, we assessed the mortality to difenoconazole (0–1.6 mg/L) and atrazine (0–80 mg/L). We found that the higher the concentrations of the pesticides, the higher the toxicity for both bioindicators. In L. minor, the highest toxicity for atrazine was 0.96 mg/L, whereas for difenoconazole, it was 8 mg/L. For D. magna, the 48 h LC50 for difenoconazole was 0.97 mg/L, while for atrazine, it was 86.19 mg/L. For L. minor, the toxicity of difenoconazole and atrazine was not different compared to that of their photodegradation products. In contrast, for D. magna, difenoconazole, but not atrazine, was more toxic compared to its respective photodegradation products. Pesticides are a serious threat to aquatic biota, and their photodegradation products remain toxic in the environment. Additionally, the use of bioindicators can help monitor these pollutants in aquatic ecosystems in countries where the application of pesticides is imperative for agricultural production.

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Section: Introductionmentioning

confidence: 99%

Toxicity of Difenoconazole and Atrazine and Their Photodegradation Products on Aquatic Biota: Environmental Implications in Countries Lacking Good Agricultural Practices

Herrera

Iñiguez–Armijos

Alcarria

et al. 2023

Toxics

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“…Cladocerans are highly sensitive to changes in the water environment (Dodson and Hanazato, 1995;Yang et al, 2011), so they have been widely used as model organisms to study the effects of pollutants (Lyu et al, 2013(Lyu et al, , 2016. Previous studies have reported that atrazine increases the proportion of male offspring, reduces fecundity, and affects the expression of genes related to reproduction and energy metabolism in cladocerans (Dodson et al, 2000;Klementova et al, 2019). Atrazine, as an endocrine disrupting chemical (Mizota and Ueda, 2006;Benotti et al, 2009), may interfere with responses of organisms to predation risk and further affect prey populations.…”

Section: Introductionmentioning

confidence: 99%

Impact of atrazine on the dynamic response of Daphnia pulex populations to fish predation risk

Qin

Xia

et al. 2023

Front. Ecol. Evol.

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Herbicide pollution is persistent, which not only has a negative impact on individual organisms, but also may alter population dynamics and stability of interspecific relationships. Cladocerans, an important part of zooplankton, are often simultaneously exposed to environmental pollutants and predation risk in the aquatic environment. To evaluate the combined effects of atrazine and fish predation risk on the population traits of cladocerans, we exposed Daphnia pulex to different concentrations of atrazine (0, 0.05, 0.10, and 1.0 mg L−1) with or without fish (Rhodeus ocellatus) kairomone, recorded the key population traits, and fitted Gaussian model to population dynamics. Results showed that fish kairomone increased the population density at the end of the experiment and resting eggs production, and tended to decrease the total biomass and the average dry weight per individual of D. pulex. Atrazine reduced the total biomass, the average dry weight per individual, and resting eggs production of D. pulex populations. Atrazine also decreased the population density at the end of the experiment of D. pulex in fish kairomone treatment, and attenuated the promoting effect of fish kairomone on resting eggs production and the reduction of the total biomass. The findings highlighted the importance of considering the combined impact of environmental pollutants and predation risks on zooplankton populations.

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“…In addition, adsorbents can be tailored to the pollutant and made recoverable and reusable by devising proper supporting materials. Finally, adsorption usually generates no environmentally harmful byproducts [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

A “Zero-Cost” Adsorbing Hydroxyapatite-Based Material from Amazon Fishery Waste for Water Remediation and Nutrient Release for Agriculture

et al. 2023

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This paper puts forward the use of “low-cost/low-end” hydroxyapatite-based adsorbing materials prepared from Tambaqui fish cleaning residues (i.e., bones) by grinding and/or thermal annealing. The nature of raw materials and treatments practically resulted in a “zero-cost” adsorbent for atrazine pesticide and Co2+ ion remediation in an aqueous solution. Despite the distinctive character of the two contaminants, all adsorptions were found to follow pseudo-second order kinetics and Freundlich isotherm models. Pristine hydroxyapatite proved to be more effective in adsorbing atrazine at low concentrations due to interactions with collagen residues. Conversely, heat-treated materials demonstrated better adsorption performances for cobalt due to the removal of organic residues hindering access to the surface. On the other hand, lower adsorption affinities resulted into a faster and more efficient Co2+ release into water. The different behavior in terms of phosphate and cobalt release shown by the three hydroxyapatite-based absorbents can be exploited for differential liberation of targeted nutrients, with high seed germination rates. Considering circular economic principles, waste-derived hydroxyapatites may be potentially attractive for removing ionic species, minimizing water pollution stemming from heavy industry, and for their subsequent targeted release to edible plants, enhancing agricultural availability of mineral nutrients for soil fertilization.

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Toxicity of atrazine and the products of its homogeneous photocatalytic degradation on the aquatic organisms Lemna minor and Daphnia magna

Cited by 33 publications

References 31 publications

Toxicity of Difenoconazole and Atrazine and Their Photodegradation Products on Aquatic Biota: Environmental Implications in Countries Lacking Good Agricultural Practices

Toxicity of Difenoconazole and Atrazine and Their Photodegradation Products on Aquatic Biota: Environmental Implications in Countries Lacking Good Agricultural Practices

Impact of atrazine on the dynamic response of Daphnia pulex populations to fish predation risk

A “Zero-Cost” Adsorbing Hydroxyapatite-Based Material from Amazon Fishery Waste for Water Remediation and Nutrient Release for Agriculture

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