Transport, sorption and degradation of atrazine in two clay soils from Mexico: Andosol and Vertisol

Prado, Blanca; Duwig, Céline; Hidalgo, Claudia; Müller, Karin; Mora, Lucy; Raymundo, Elías Raymundo; Etchevers, Jorge D.

doi:10.1016/j.geoderma.2014.06.011

Cited by 69 publications

(18 citation statements)

References 56 publications

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“…Rate constants from the SFO fitting were used, because they are available for both pesticides in both soils and because one constant covers the whole degradation period. Correlation coefficients (batch approach, r = −0.783; saturated paste approach, r = −0.813) confirm that both constants were inversely related, in agreement with other reports concerning different pesticide families, which have established an inverse relationship between pesticide adsorption and degradation in soils (Di et al, 1998;Sánchez et al, 2003;Prado et al, 2014), suggesting that the degradation rate in the soil solution is more rapid than in the sorbed phase (Guo et al, 2000). In addition, the rate constants (k 2 ) from the fitting to the DFOP model, which explain the decay herbicide behaviour of N85% in S5 and N72% in S2 (Tables 2 and 3), were also inversely correlated with sorption constants (batch approach, r = − 0.792; saturated paste approach, r = − 0.890) (ElGouzi et al, 2012) implying a further confirmation of the previous assumption.…”

Section: Non-sterile Soilssupporting

confidence: 89%

Changes in the persistence of two phenylurea herbicides in two Mediterranean soils under irrigation with low- and high-quality water: A laboratory approach

ElGouzi

Draoui

Chtoun

et al. 2015

Science of The Total Environment

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Section: Non-sterile Soilssupporting

confidence: 89%

Changes in the persistence of two phenylurea herbicides in two Mediterranean soils under irrigation with low- and high-quality water: A laboratory approach

ElGouzi

Draoui

Chtoun

et al. 2015

Science of The Total Environment

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“…Although the persistence of atrazine in the present study increased in subsurface horizons in comparison with surface soil, the half‐life of atrazine only ranged between 18 and 29 d for both soils, which are substantially smaller values than those reported in some studies , but similar to the 43 or 47 d found by Vryas et al and Sarmah et al and greater than the value reported by Prado et al .…”

Section: Resultscontrasting

confidence: 70%

“…Considering horizon A as a whole (A 0 þ A 1 ) for soils at the General Alvarado and Tres Arroyos sites, values of atrazine DT50 ranged between 13 and 17 d (Figure 2), in agreement with several published reports [29,[36][37][38], including the work of Hang et al [39] in Mollisols soils from Argentina. In contrast, several authors found DT50 values for atrazine ranging from 37 to 101 d [8,[40][41][42][43][44], whereas others obtained smaller half-life values that were attributed to the process of enhanced degradation occurring in fields with repeated annual applications of atrazine on continuous corn [10,45,46]. Although the main decomposition route of atrazine is rapid microbial breakdown through the opening of the s-triazine ring, in acid soils with high organic matter content (e.g., the A horizons in the present study; Table 1), the formation of bound residues is an important abiotic attenuation process.…”

Section: Persistence Of Acetochlor Atrazine and S-metolachlormentioning

confidence: 99%

Persistence of acetochlor, atrazine, and S‐metolachlor in surface and subsurface horizons of 2 typic argiudolls under no‐tillage

Bedmar

Giménez

Costa

et al. 2017

Enviro Toxic and Chemistry

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Variations in soil properties with depth strongly influence the degradation and persistence of herbicides, underlining the importance of studying these processes in soil horizons with distinctively different properties. The persistence of the herbicides acetochlor, atrazine, and S-metolachlor was measured in samples of the A, B, and C horizons of 2 Typic Argiudolls from Argentina under no-till management. The soils studied differed in soil organic carbon (OC) content, pH, particle size distribution, and structure. Quantification of herbicides in soil was done through high-performance liquid chromatography with diode array detector. There were interactions of herbicide × horizon (p < 0.01) that resulted in degradation rates (k) of all herbicides decreasing, and their corresponding dissipation half-life (DT50) values increasing, with soil depth. Herbicide persistence across all soils and horizons ranged from 15 to 73 d for acetochlor, 13 to 29 d for atrazine, and 82 to 141 d for S-metolachlor, which had significantly (p < 0.01) greater persistence than atrazine and acetochlor. The DT50 values of herbicides were negatively correlated with the contents of OC (correlation coefficients ranging from -0.496 to -0.773), phosphorus (-0.427 to -0.564), and nitrogen-nitrate (-0.507 to -0.662), and with microbial activity (-0.454 to -0.687) and the adsorption coefficient (-0.530 to -0.595); DT50s were positively correlated with pH (0.366 to 0.648). Adsorption was likely the most influential process in determining persistence of these herbicides in surface and subsurface horizons. The present study can potentially improve the prediction of the fate of acetochlor, atrazine, and S-metolachlor in soils because it includes much needed information on the degradation of the herbicides in subsurface horizons. Environ Toxicol Chem 2017;36:3065-3073. © 2017 SETAC.

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“…Other researchers explain the formation of well-known non-extractable chloro-s-triazine residues in soil by chemical binding to HA by heteroatomic bonds after the substitution of a chlorine atom (Neto et al 1994;Yu and Cole 1997;Davies and Jabeen 2003;Zupancic-Kralj, 2005, Prosen et al 2007). Many researchers have demonstrated the influence of the mineral components of soil on the sorption of atrazine (Davies and Jabeen 2003;GonzalezPradas et al 2003;Lesueur et al 2008;Feria-Reyes et al 2011;Barchanska et al 2013;Prado et al 2014). SiO 2 and Al 2 O 3 are the predominant minerals present in soil.…”

Section: Introductionmentioning

confidence: 99%

The interaction between atrazine and the mineral horizon of soil: a spectroscopic study

et al. 2017

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Purpose In this paper, an attempt was made to explain the long-lasting occurrence of atrazine in soil. Despite the fact that this herbicide has been banned in European Union 10 years ago, it is still detected in the environment. Materials and methods Soil samples (organic and mineral horizon), SiO 2 and Al 2 O 3 sorbents were spiked with atrazine. The ultrasound-assisted extraction coupled with gas chromatography-electron capture detector was performed to establish the atrazine recovery depending on the type of soil horizon and sorbent. Fourier transform infrared spectroscopy (FTIR) analysis was conducted to determine the type of interactions between atrazine and sorbents. Results and discussion The atrazine recovery was lower for the mineral horizon (15%) compared to the organic horizon (63%). This finding suggests an interaction between atrazine and the mineral components of soil. Therefore, attempts have been made to explain atrazine's interaction with the main mineral components of soil, SiO 2 and Al 2 O 3 , and to investigate the influence of pH on atrazine's behaviour in soil. The atrazine recoveries were 86.5 and 10.7% for Al 2 O 3 and SiO 2 , respectively. The obtained results demonstrated that the protonated atrazine exhibits stronger interactions with the soil mineral layer (recovery below 0.1%) in comparison to molecular form of atrazine (recovery 86%). FTIR results suggested interactions between atrazine and SiO 2 . FTIR analysis revealed that 1,3,5-azidine ring interacts with SiO 2 molecule. Conclusions In acidic soil, atrazine remediation is limited, especially if the soil contains minerals with high SiO 2 contents. This situation may cause the long-lasting persistence of atrazine in soil.

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Transport, sorption and degradation of atrazine in two clay soils from Mexico: Andosol and Vertisol

Cited by 69 publications

References 56 publications

Changes in the persistence of two phenylurea herbicides in two Mediterranean soils under irrigation with low- and high-quality water: A laboratory approach

Changes in the persistence of two phenylurea herbicides in two Mediterranean soils under irrigation with low- and high-quality water: A laboratory approach

Persistence of acetochlor, atrazine, and S‐metolachlor in surface and subsurface horizons of 2 typic argiudolls under no‐tillage

The interaction between atrazine and the mineral horizon of soil: a spectroscopic study

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