Adsorption behavior of imidacloprid pesticide on polar microplastics under environmental conditions: critical role of photo-aging

Liu, Weiyi; Pan, Ting; Liu, Huan; Jiang, Mengyun; Zhang, Tingting

doi:10.1007/s11783-023-1641-0

Cited by 19 publications

(8 citation statements)

References 40 publications

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“…On the other hand, when ionic or ionizable pesticides are considered, log K ow fails to predict adsorption [110]. For these types of compounds (e.g., glyphosate, MCPA or mecoprop), electrostatic interactions appear to be preferred [100,[110][111][112][113].…”

Section: Mechanisms and Factors Governing The Interactions Of Pestici...mentioning

confidence: 99%

Interactions of Microplastics with Pesticides in Soils and Their Ecotoxicological Implications

2023

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In the middle of the 20th century, the production of plastics exploded worldwide because of their low cost and the versatility of their applications. However, since plastic debris is highly resistant to environmental degradation, a growing presence of plastics in all the ecosystems has been confirmed. Among them, plastic particles < 5 mm, also known as microplastics (MPs), are of special concern because they are dispersed in aerial, terrestrial and aquatic environments, being the soil the main environmental sink of these contaminants. Due to their large specific surface area and hydrophobicity, MPs are considered good adsorbents for other environmental organic pollutants also present in terrestrial ecosystems, such as pharmaceuticals, personal-care products or pesticides with which they can interact and thus modify their environmental fate. In this review article, we examine the recent literature (from 2017 to 2022) to get a better understanding of the environmental fate of pesticides in soil (adsorption, mobility and/or degradation) when they are simultaneously present with MPs and the ecological risks on living organisms of the interactions between MPs and pesticides in soil. More studies are needed to fully understand the toxicological impact of the copresence in soil of pesticides and MPs.

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Section: Mechanisms and Factors Governing The Interactions Of Pestici...mentioning

confidence: 99%

Interactions of Microplastics with Pesticides in Soils and Their Ecotoxicological Implications

2023

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“… 73 Despite this, it is encouraging to see that even without robust testing of different simulation parameters, interaction energies calculated with MD can still reasonably align with experimentally calculated adsorption capacities. Similar to antibiotics, pesticides have also been shown to adsorb to FPPs, 74 , 75 and in the same year, Li et al also published a study examining the adsorption of three different pesticides (imidacloprid, buprofezin, and difenoconazole) onto the surface of polyethylene microplastics. 76 Their methodology was quite similar to that used by Chen et al, but a key difference involved the use of Grand Canonical Monte Carlo (GCMC) in addition to MD simulations.…”

Section: The Application Of Molecular Dynamics To Fpp Adsorptionmentioning

confidence: 99%

Adsorption in Action: Molecular Dynamics as a Tool to Study Adsorption at the Surface of Fine Plastic Particles in Aquatic Environments

Townsend

2024

ACS Omega

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The presence of microscopic fine plastic particles (FPPs) in aquatic environments continues to be a societal issue of great concern. Further, the adsorption of pollutants and other macromolecules onto the surface of FPPs is a well-known phenomenon. To establish the adsorption behavior of pollutants and the adsorption capacity of different plastic materials, batch adsorption experiments are typically carried out, wherein known concentrations of a pollutant are added to a known amount of plastic. These experiments can be time-consuming and wasteful by design, and in this work, an alternative theoretical approach to considering the problem is reviewed. As a theoretical tool, molecular dynamics (MD) can be used to probe and understand adsorbent−adsorbate interactions at the molecular scale while also providing a powerful visual picture of how the adsorption process occurs. In recent years, numerous studies have emerged that used MD as a theoretical tool to study adsorption on FPPs, and in this work, these studies are presented and discussed across three main categories: (i) organic pollutants, (ii) inorganic pollutants, and (iii) biological macromolecules. Emphasis is placed on how MD-calculated interaction energies can align with experimental data from batch adsorption experiments, and particular consideration is given to how MD can complement existing approaches. This work demonstrates that MD can provide significant insight into the adsorption behavior of different pollutants, but modern approaches are lacking a generalized formula for theoretically predicting adsorption behavior. With more data, MD could be used as a robust, initial assessment tool for the prioritization of chemical pollutants in the context of the microplastisphere, meaning that less timeconsuming and potentially wasteful experiments would need to be carried out. With additional refinement, modern simulations will facilitate an improved understanding of chemical adsorption in aquatic environments.

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“…Pesticides migrate downward in the soil through pores and fssures, which is known as leaching, and as water descends, soil typically flters it to remove impurities such as pesticides [48]. Pesticide migration can be infuenced by the characteristics of the soil, the pesticides, location, and weather (leaching), and pesticides that leak through soil may contaminate ground water [49].…”

Section: Leaching To Groundwatermentioning

confidence: 99%

Residue of Pesticides in Fruits, Vegetables, and Their Management in Ethiopia

Gelaye,

Negash

2024

Journal of Chemistry

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In Ethiopia, using pesticides to manage pests in the growing of fruits and vegetables is a standard practice. Various classes of pesticides have been approved to combat pests, but the majority of those in use now are outdated broad-spectrum insecticides with significant residual effects on crops of freshly eaten fruits and vegetables. This review reveals that Ethiopia’s assessment of the residual pesticide level in fruits and vegetables has been lacking. According to the reviewed literature, crops that are often treated with pesticides in many countries have significant residual pesticide levels. However, Ethiopia has not adequately reported on this issue. Furthermore, due to a lack of knowledge regarding the impact of pesticide residues on human health, Ethiopians frequently use pesticides improperly to control pests in fruits and vegetables. The majority of consumers eat their fruits and vegetables unprocessed, without washing or cooking them first. To reduce the risk of pesticide residues in fruits and vegetables for consumer safety and to battle the health effects of toxic chemicals in humans, monitoring pesticide residues and raising awareness about the adverse effects of pesticides on humans are urgently needed. Before they may be registered and sold, pesticide residues in fruits and vegetables as well as in the environment must also undergo proper testing and evaluation. New pesticide generations that have fewer side effects on fruits and vegetables must also be developed. By washing, peeling, canning, or boiling fruits and vegetables before consumption, the detrimental effects of pesticide residues on human health can be minimized.

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Adsorption behavior of imidacloprid pesticide on polar microplastics under environmental conditions: critical role of photo-aging

Cited by 19 publications

References 40 publications

Interactions of Microplastics with Pesticides in Soils and Their Ecotoxicological Implications

Interactions of Microplastics with Pesticides in Soils and Their Ecotoxicological Implications

Adsorption in Action: Molecular Dynamics as a Tool to Study Adsorption at the Surface of Fine Plastic Particles in Aquatic Environments

Residue of Pesticides in Fruits, Vegetables, and Their Management in Ethiopia

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