Sorption-desorption and biodegradation of sulfometuron-methyl and its effects on the bacterial communities in Amazonian soils amended with aged biochar

Obregón, Dasiel; Mendes, Kássio Ferreira; Tosi, Micaela; Souza, Leandro Fonseca de; Cedano, Johnny Carlos Campos; Falção, Newton Paulo de Souza; Dunfield, Kari E.; Tsai, Siu Mui; Tornisielo, Valdemar Luiz

doi:10.1016/j.ecoenv.2020.111222

Cited by 18 publications

(6 citation statements)

References 62 publications

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“…When the concentration of EPM was low, this compound was preferentially adsorbed by OM (which has a strong adsorption capacity); meanwhile, soils with higher OM contents (e.g., Phaeozems; S 1 ) desorbed EPM slowly. The positive relationship between sorption and OM has been reported previously (Hochman et al, 2021;Obregón Alvarez et al, 2021;Patel et al, 2021). Moreover, the adsorption ability of EPM has been found to be high, similar to those of other herbicides (e.g., chlorsulfuron, imazamethabenz methyl, flumetsulam, and bispyribac sodium; Kalsi and Kaur, 2019;Medo et al, 2020;Spadotto et al, 2020).…”

Section: Adsorption-desorption Isothermssupporting

confidence: 78%

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils

Zhou

Jia

et al. 2022

SOIL

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Abstract. E or pyriminobac-methyl (EPM), a pyrimidine benzoic acid esters herbicide, has a high potential as weedicide; nevertheless, its environmental behaviors are still not well understood. In this study, we systematically investigated, for the first time, the adsorption–desorption, degradation, and leaching behaviors of EPM in agricultural soils from five exemplar sites in China (Phaeozems – S1; Anthrosol – S2; Ferralsol – S3; Alisol – S4; Plinthosol – S5) through laboratory simulation experiments. Our results show that the EPM adsorption–desorption results were well fitted by the Freundlich model (R2>0.9999). In the analyzed soils, the Freundlich adsorption (i.e., Kf ads) and desorption (i.e., Kf des) coefficients of EPM varied between 0.85 and 32.22 mg1-1/n L1/n kg−1 and 0.78–5.02 mg1-1/n L1/n kg−1, respectively. The mobility of EPM in soils S1–S5 was categorized as immobile, slightly immobile, highly mobile, slightly mobile, and slightly mobile, respectively. Moreover, the degradation of EPM reflected first-order kinetics, where its half-life ranged between 37.46 and 66.00 d, depending on the environmental conditions, and abiotic degradation was predominant in the degradation of this compound. Overall, the high leaching ability and desorption capacity of EPM were accompanied by a low adsorption capacity, and there were no significant relationships between pH and the leaching rate of EPM in the five types of soils. In contrast, the organic matter content, cation exchange capacity, and soil clay content were the main components responsible for the observed leaching rates. We found that EPM degrades easily, has a high adsorption affinity, and a low mobility in S1, which results in a low contamination risk for groundwater systems. On the contrary, this compound degrades slowly in S2, S3, S4, and S5, due to a low adsorption affinity and moderate mobility, which results in a high contamination risk for groundwater systems. Therefore, our results may serve as a reference for evaluating the risks involved in the increasingly wide application of this compound.

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Section: Adsorption-desorption Isothermssupporting

confidence: 78%

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils

Zhou

Jia

et al. 2022

SOIL

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“…When the concentration of EPM was low, this compound was preferentially adsorbed by OM (which has a strong adsorption capacity); meanwhile, soils with higher OM contents (e.g., Phaeozems, S1) desorbed EPM slowly. The positive relationship between sorption and OM has been reported previously (Hochman et al 2021;Obregón Alvarez et al 2021;Patel et al 2021). Moreover, the adsorption ability of EPM has been found to be high, similar to those of other herbicides (e.g., chlorsulfuron, imazamethabenz-methyl, flumetsulam, and bispyribac-sodium) (Kalsi and Kaur 2019; Medo et al 2020;Spadotto et al 2020).…”

Section: Adsorption-desorption Isothermssupporting

confidence: 75%

Environmental Behaviors of (E)-Pyriminobac-methyl in Agricultural Soils

Zhou

Jia

et al. 2021

Preprint

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(E)-Pyriminobac-methyl (EPM), a pyrimidine benzoic acid esters herbicide, has a high potential as weedicide; nevertheless, its environmental behaviors are still not well understood. In this study, we systematically investigated for the first time the adsorption–desorption, degradation, and leaching behaviors of EPM in agricultural soils from five exemplar sites in China (characterized by different physicochemical properties) through laboratory simulation experiments. The EPM adsorption–desorption results were well fitted by the Freundlich model (R2 > 0.9999). In the analyzed soils, the Freundlich adsorption (i.e., Kf-ads) and desorption (i.e., Kf-des) coefficients of EPM varied between 0.85–32.22 mg1−1/n L1/n kg−1 and between 0.78–5.02 mg1−1/n L1/n kg−1, respectively. Moreover, the degradation of EPM reflected first-order kinetics: its half-life ranged between 37.46–66.00 d depending on the environmental conditions, and abiotic degradation was predominant in the degradation of this compound. The mobility of EPM in the five soils varied from immobile to highly mobile. The groundwater ubiquity score ranged between 0.9765–2.7160, indicating that EPM posed threat to groundwater quality. Overall, the results of this study demonstrate the easy degradability of EPM, as well as its high adsorption affinity and low mobility in soils with abundant organic matter content and high cation exchange capacity. Under such conditions, there is a relatively low contamination risk for groundwater systems in relation to this compound. Overall, our findings provide a solid basis for predicting the environmental impacts of EPM.

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“…In contrast, a large amount of pesticides reaches the soil, resulting in severe soil pollution [51,52]. The sorption process is a phenomenon that binds pesticides to soil particles due to the attraction between chemical and soil particles [51,[53][54][55]. In addition, adsorption isotherms can be obtained according to the standard batch equilibration method (OECD106, 2000) and used for the assessment of pesticide retention in the environmental media [56].…”

Section: Pesticide Migration 621 Sorptionmentioning

confidence: 99%

Agriculture Development, Pesticide Application and Its Impact on the Environment

Tudi

Ruan

Wang

et al. 2021

IJERPH

949

481

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Pesticides are indispensable in agricultural production. They have been used by farmers to control weeds and insects, and their remarkable increases in agricultural products have been reported. The increase in the world’s population in the 20th century could not have been possible without a parallel increase in food production. About one-third of agricultural products are produced depending on the application of pesticides. Without the use of pesticides, there would be a 78% loss of fruit production, a 54% loss of vegetable production, and a 32% loss of cereal production. Therefore, pesticides play a critical role in reducing diseases and increasing crop yields worldwide. Thus, it is essential to discuss the agricultural development process; the historical perspective, types and specific uses of pesticides; and pesticide behavior, its contamination, and adverse effects on the natural environment. The review study indicates that agricultural development has a long history in many places around the world. The history of pesticide use can be divided into three periods of time. Pesticides are classified by different classification terms such as chemical classes, functional groups, modes of action, and toxicity. Pesticides are used to kill pests and control weeds using chemical ingredients; hence, they can also be toxic to other organisms, including birds, fish, beneficial insects, and non-target plants, as well as air, water, soil, and crops. Moreover, pesticide contamination moves away from the target plants, resulting in environmental pollution. Such chemical residues impact human health through environmental and food contamination. In addition, climate change-related factors also impact on pesticide application and result in increased pesticide usage and pesticide pollution. Therefore, this review will provide the scientific information necessary for pesticide application and management in the future.

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Sorption-desorption and biodegradation of sulfometuron-methyl and its effects on the bacterial communities in Amazonian soils amended with aged biochar

Cited by 18 publications

References 62 publications

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils

Environmental Behaviors of (E)-Pyriminobac-methyl in Agricultural Soils

Agriculture Development, Pesticide Application and Its Impact on the Environment

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Sorption-desorption and biodegradation of sulfometuron-methyl and its effects on the bacterial communities in Amazonian soils amended with aged biochar

Cited by 18 publications

References 62 publications

Environmental behaviors of (&lt;i&gt;E&lt;/i&gt;) pyriminobac-methyl in agricultural soils

Environmental behaviors of (&lt;i&gt;E&lt;/i&gt;) pyriminobac-methyl in agricultural soils

Environmental Behaviors of (E)-Pyriminobac-methyl in Agricultural Soils

Agriculture Development, Pesticide Application and Its Impact on the Environment

Contact Info

Product

Resources

About

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils

Environmental behaviors of (<i>E</i>) pyriminobac-methyl in agricultural soils