A systemic assessment of the environmental impacts and remediation strategies for chloroacetanilide herbicides

Mohanty, Satya Sundar; Jena, Hara Mohan

doi:10.1016/j.jwpe.2019.100860

Cited by 36 publications

(18 citation statements)

References 148 publications

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“…One important category of pesticides, both synthetic and natural, is the herbicides. As in the case of insecticides, the extensive use of synthetic herbicide can lead to a wide range of toxic effects both on the environment and fauna [72,73]. These potential harmful effects led in turn to the development of alternative, "greener" herbicides, either of microbial or plant origin [74,75].…”

Section: Herbicidal Properties Of Eosmentioning

confidence: 99%

The application of essential oils as a next-generation of pesticides: recent developments and future perspectives

Fierăscu

Fierascu

Dinu-Pîrvu

et al. 2019

Zeitschrift Für Naturforschung C

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Abstract The overuse of synthetic pesticide, a consequence of the rush to increase crop production, led to tremendous adverse effects, as they constitute a major pollutant for both soils and water, with a high toxicity towards humans and animals and, at the same time, led to development of pest resistance. In the last period, the researches were directed towards finding new solutions with a lower toxicity, less damaging behaviour towards the environment, and a better specificity of action. In this context, the use of essential oils, a complex and unique mixture of compounds, can be considered for the next-generation pesticides. This review aims to present the main applications of the essential oils as insecticides, herbicides, acaricides, and nematicides, as they emerged from the scientific literature published in the last 5 years (2015 to present). From the identified articles within the time period, only those dealing with essential oils obtained by the authors (not commercially available) were selected to be inserted in the review, characterized using established analytical techniques and employed for the envisaged applications. The review is concluded with a chapter containing the main conclusions of the literature study and the future perspectives, regarding the application of essential oils as next-generation pesticides.

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Section: Herbicidal Properties Of Eosmentioning

confidence: 99%

The application of essential oils as a next-generation of pesticides: recent developments and future perspectives

Fierăscu

Fierascu

Dinu-Pîrvu

et al. 2019

Zeitschrift Für Naturforschung C

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“…Mohanty and Jena (2019) presented a review summary on the toxicological aspects, and critical analyses available related to remediation technologies of herbicides. The authors highlighted that biological methods were useful for complete mineralization of herbicides in the presence of many other technologies.…”

Section: Toxicologymentioning

confidence: 99%

Pesticides and herbicides

Choudri

Charabi

Al‐Nasiri

et al. 2020

Water Environment Research

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This paper highlights a review of scientific papers published in the year 2019 regarding pesticides and herbicides. The scientific review presented in this paper includes the presence and occurrence of pesticides and herbicides in the environment. The entire review divided into different sections, which are grouped into four main sections. Each of these sections provides studies conducted on toxicology, ecological risk assessment, strategies of treatment, policies, modeling, and guidelines regarding pesticides and herbicides management.

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“…Reductions in the production yields as high as 80% resulted in big concerns regarding the growth control of these undesirable plants from the farm fields [2]. The use of chemical herbicides is considered one of the most efficient methods to prevent weed invasion, being an essential and common practice in modern agriculture [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The particular case of acetochlor, metolachlor, and alachlor reach the 4th (~33 million lb), 10th (~18 million lb), and 16th (~8 million lb) place in the most widely used agricultural chemicals in the US, according to the United States Environmental Protection Agency (US EPA) [7,8]. In addition, their use has been observed to reach countries in Africa, Europe, Latin America [3,9]. China is also a great consumer of chloroacetanilide herbicides, using around 10,000 metric tons every year [4].…”

Section: Introductionmentioning

confidence: 99%

“…Their accidental consumption has been associated with eye, liver, kidney, spleen problems and anemia [7]. Indeed, recent studies have shown significant rates of the carcinogenic nature of acetochlor in rats, tadpoles and minnows causing stomach, liver, bone, thyroid and lung tumors [3]. Furthermore, these substances exhibit moderate to high chronic toxicity to aquatic vertebrates and invertebrates; and high toxicity to aquatic plants and some green algae [8,15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of the Nucleophile’s Nature on Chloroacetanilide Herbicides Cleavage Reaction Mechanism. A DFT Study

Cuesta

Torres

Rincón

et al. 2021

IJMS

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In this study, the degradation mechanism of chloroacetanilide herbicides in the presence of four different nucleophiles, namely: Br−, I−, HS−, and S2O3−2, was theoretically evaluated using the dispersion-corrected hybrid functional wB97XD and the DGDZVP as a basis set. The comparison of computed activation energies with experimental data shows an excellent correlation (R2 = 0.98 for alachlor and 0.97 for propachlor). The results suggest that the best nucleophiles are those where a sulfur atom performs the nucleophilic attack, whereas the other species are less reactive. Furthermore, it was observed that the different R groups of chloroacetanilide herbicides have a negligible effect on the activation energy of the process. Further insights into the mechanism show that geometrical changes and electronic rearrangements contribute 60% and 40% of the activation energy, respectively. A deeper analysis of the reaction coordinate was conducted, employing the evolution chemical potential, hardness, and electrophilicity index, as well as the electronic flux. The charge analysis shows that the electron density of chlorine increases as the nucleophilic attack occurs. Finally, NBO analysis indicates that the nucleophilic substitution in chloroacetanilides is an asynchronous process with a late transition state for all models except for the case of the iodide attack, which occurs through an early transition state in the reaction.

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A systemic assessment of the environmental impacts and remediation strategies for chloroacetanilide herbicides

Cited by 36 publications

References 148 publications

The application of essential oils as a next-generation of pesticides: recent developments and future perspectives

The application of essential oils as a next-generation of pesticides: recent developments and future perspectives

Pesticides and herbicides

Effect of the Nucleophile’s Nature on Chloroacetanilide Herbicides Cleavage Reaction Mechanism. A DFT Study

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