Photodegradation of the pure and formulated alpha-cypermethrin insecticide gives different products

Gosetti, Fabio; Bolfi, B; Chiuminatto, Ugo; Manfredi, Marcello; Robotti, Elisa; Marengo, Emílio

doi:10.1007/s10311-017-0685-4

Cited by 12 publications

(4 citation statements)

References 35 publications

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“…What is more, 3-PBA is classified as an endocrine-disrupting chemical and thus presents a greater risk than its parent compound (McCarthy, Thomson, Shaw, & Abell, 2006). It is also worth to mention that these two compounds have even been detected in human urine and elsewhere (Galea et al, 2015;Gosetti et al, 2018;Rousis, Zuccato, & Castiglioni, 2016). Hence, the removal of β-CY and 3-PBA from environment is urgent.…”

mentioning

confidence: 99%

Simultaneous degradation of β‐cypermethrin and 3‐phenoxybenzoic acid by Eurotiumcristatum ET1, a novel “golden flower fungus” strain isolated from Fu Brick Tea

Deng

Zhu

et al. 2018

MicrobiologyOpen

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Beta‐cypermethrin (β‐CY) and its major metabolite 3‐phenoxybenzoic acid (3‐PBA) spread extensively in the environment because of utilization in agricultural and home formulations, exerting negative impact on environment as well as human health. Several golden flower fungi were isolated from fu brick tea, by which the biodegradation of β‐CY and 3‐PBA was evaluated, turning out strain Eurotium cristatum ET1 had the highest capacity. Furthermore, β‐CY and 3‐PBA degradation rates were positively correlated with biomass of E . cristatum ET1, and the processes of degradation fitted well with a first‐order kinetic equation. The half‐lives of β‐CY and 3‐PBA ranged from 3.382 to 11.517 days and 1.749 to 3.194 days, respectively, under different substrate concentrations, incubation temperatures, and pH values. The degraded products were analyzed using gas chromatography‐mass spectrometry and liquid chromatography‐mass spectrometry, and results showed that E . cristatum ET1 degrades β‐CY by transforming it into 3‐PBA, which is then gradually metabolized into phenol and catechol. Moreover, E . cristatum ET1 showed efficiency in degrading these metabolites. Our results suggest that this strain is a potential microorganism for bioremediation of pesticide‐contaminated environments and fermented foods.

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mentioning

confidence: 99%

Simultaneous degradation of β‐cypermethrin and 3‐phenoxybenzoic acid by Eurotiumcristatum ET1, a novel “golden flower fungus” strain isolated from Fu Brick Tea

Deng

Zhu

et al. 2018

MicrobiologyOpen

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“…Non-target analysis highlighted only the presence of a degradation product of Ima (U2), since real paddy water is an open system, in which different mechanisms take place during the degradation of a pollutant, not only the sunlight or temperature effects but also the effect of soil sorption/desorption and the role of bacteria have to be considered (Gosetti et al 2018;Polati et al 2006).…”

Section: Paddy Water Pesticides Analysismentioning

confidence: 99%

“…Recent studies pointed out that the problem is more complex than thought, in fact also the class of "emerging contaminants" which are able to alter environmental ecosystems must be considered. In particular, there is a growing interest in contaminants transformation products, since they could be more toxic and/or persistent than their precursors (Gosetti et al 2010a(Gosetti et al , 2010b(Gosetti et al , 2015(Gosetti et al , 2018.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of water quality inflow and outflow of a farm in Italian Padana plain for rice cultivation: a case study of two years

Gosetti

Robotti

Bolfi

et al. 2019

Environ Sci Pollut Res

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Rice cultivation requires a large use of pesticides and nutrients to control weeds proliferation and improve production. The water quality of four neighbouring rice fields located in the Lomellina area (Italian Padana plain) was monitored in this study along the cultivation period (before, during and after the period of planting), for two successive agricultural seasons (2015 and 2016). Two paddy fields were traditionally cultivated with wet-seeding and the other ones with dry-seeding.Eighteen sampling points were considered: 8 points for surface water, 2 points for underground water, and 8 points for porous cups with 2 different depth. In order to evaluate the goodness of Revised ManuscriptClick here to access/download;Manuscript;revised manuscript.docx Click here to view linked References the paddy field system to maintain unchanged the quality of the inflow with respect to the outflow water, three of the most used herbicides in Italian rice cultivation (imazamox, oxadiazon and profoxydim) and other physical-chemical parameters were determined, namely biological oxygen demand after 5 days, chemical oxygen demand, total suspended solids, anionic surfactants, total hardness, total amount of phosphorus, nitrogen, and potassium and heavy metal concentrations.In general, all the collected data confirmed that paddy fields did not contribute to worsen the environmental pollution. The different flooding techniques adopted in the fields did not highlight significant differences in concentrations of pesticides or metals. The pesticides reached their maximum concentration (of the magnitude order of few ng mL -1 ) in the day after the administration and in the day after the application in the adjacent field. A slight reduction of total As in grain was obtained adopting a dry period from the steam elongation up to booting. From the collected data, it was possible to identify a general water flow direction in the paddy fields from North-West to South-East: this prevailing flow direction was useful to understand not only the diffusion of the pesticides and of their degradation products in the fields, but also that of the nutrients.As concerns nutrients, it was important not to activate a recirculation of the water in the field during the first 10 days from the administration, in order to avoid loss of nitrogen in the water vents or for percolation. Moreover, the monitoring of potassium concentration allowed to avoid the use of unnecessary potassic fertilization when there was already a high amount of this element in the paddy field deriving from the irrigation. However, all the investigated water quality parameters were under the limits fixed by the European Regulation. In addition, the presence of seven unexpected compounds was identified by non-target approach in both campaigns in samples collected in the early summer period. Four of these emerging contaminants were identified as N,N-diethyl-meta-toluamide, tricyclazole, amidosulfuron and one of the imazamox photodegradation products.Although the low found concentrations of...

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“…However, these routine methods of analysis do not take into account the possible transformation products (TPs) that may originate in the environment by hydrolysis reactions, solar radiation or microbial degradation [3]. As a matter of fact, the TPs can have comparable toxicity to, or sometimes be even more toxic than, the starting compound, and for this reason, it is also necessary and important to monitor them in the environment [4][5][6][7]. Only some of the analytical methods developed ad hoc for this purpose take into consideration the TPs of the starting compounds [8][9][10][11][12]; often these studies are restricted only to the drug metabolites, which are generally known, as pharmacokinetic studies are requisite before the compounds are placed on the market [13].…”

Section: Introductionmentioning

confidence: 99%

Identification of Photodegradation Products of Escitalopram in Surface Water by HPLC-MS/MS and Preliminary Characterization of Their Potential Impact on the Environment

et al. 2022

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The study concerns the photodegradation of the antidepressant escitalopram (ESC), the S-enantiomer of the citalopram raceme, both in ultrapure and surface water, considering the contribution of indirect photolysis through the presence of nitrate and bicarbonate. The effect of nitrate and bicarbonate concentrations was investigated by full factorial design, and only the nitrate concentration resulted in having a significant effect on the degradation. The kinetics of ESC photodegradation is the pseudo-first-order (half-life = 62.4 h in ultrapure water and 48.4 h in lake water). The generation of transformation products (TPs) was monitored through a developed and validated HPLC-MS/MS method. Fourteen TPs were identified in ultrapure water (one of them, at m/z 261, for the first time) and other two TPs at m/z 327 (found for the first time in this study) were identified only in presence of a nitrate. Several TPs were the same as those formed during the photodegradation of citalopram. The photodegradation pathway of ESC and its mechanism of degradation in water is proposed. The method was applied successfully to the analyses of surface water samples, in which a few dozen of ng L−1 of ESC was determined together with the presence of TP2, TP5 and TP12. Finally, a preliminary in silico evaluation of the toxicological profile and environmental behavior of TPs by computational models was carried out; two TPs (TP4 and TP10) were identified as of potential concern, as they were predicted mutagenic by Ames test model.

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Photodegradation of the pure and formulated alpha-cypermethrin insecticide gives different products

Cited by 12 publications

References 35 publications

Simultaneous degradation of β‐cypermethrin and 3‐phenoxybenzoic acid by Eurotiumcristatum ET1, a novel “golden flower fungus” strain isolated from Fu Brick Tea

Simultaneous degradation of β‐cypermethrin and 3‐phenoxybenzoic acid by Eurotiumcristatum ET1, a novel “golden flower fungus” strain isolated from Fu Brick Tea

Monitoring of water quality inflow and outflow of a farm in Italian Padana plain for rice cultivation: a case study of two years

Identification of Photodegradation Products of Escitalopram in Surface Water by HPLC-MS/MS and Preliminary Characterization of Their Potential Impact on the Environment

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