Fate of Pesticides in Soils: Toward an Integrated Approach of Influential Factors

Chaplain, Véronique; Mamy, Laure; Vieublé-Gonod, Laure; Mougin, Christian; Benoît, Pierre; Barriuso, Enrique; Nélieu, Sylvie

doi:10.5772/17035

Cited by 40 publications

(39 citation statements)

References 135 publications

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“…Agrochemicals can reach the soil due to direct applications, such as for weed control and following seed treatment, as well as indirectly by spraying of the aerial parts of plants, the falling of treated foliage or fruits, and the movement of contaminated water on the surface and within the soil profile (Chaplain et al, 2011;Chowdhury et al, 2008;Cycon et al, 2017;Gevao et al, 2000). Once accumulated in the soil, these chemicals can be transported by leaching and surface runoff and they can undergo chemical processes such as hydrolysis, photolysis, and chemical degradation, as well as they can interact with the living fraction of the soil (the microbiota) and be biodegraded (Arias-Estévez et al, 2008;Chaplain et al, 2011;Kookana et al, 1998;Meite et al, 2018;Salazar-Ledesma et al, 2018;Shaheen et al, 2017). As a result of these processes, pesticides and/or their metabolites (which may be more or less toxic than the parent compounds) can reach hydric resources (surface and subterranean waters), become bioaccumulated through the food chain, be completely mineralized, or persist for long periods in the soil (Chaplain et al, 2011;Gevao et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Once accumulated in the soil, these chemicals can be transported by leaching and surface runoff and they can undergo chemical processes such as hydrolysis, photolysis, and chemical degradation, as well as they can interact with the living fraction of the soil (the microbiota) and be biodegraded (Arias-Estévez et al, 2008;Chaplain et al, 2011;Kookana et al, 1998;Meite et al, 2018;Salazar-Ledesma et al, 2018;Shaheen et al, 2017). As a result of these processes, pesticides and/or their metabolites (which may be more or less toxic than the parent compounds) can reach hydric resources (surface and subterranean waters), become bioaccumulated through the food chain, be completely mineralized, or persist for long periods in the soil (Chaplain et al, 2011;Gevao et al, 2000). The intensive use of agrochemicals increases their persistence in the soil and thereby negatively affecting the soil microbiota.…”

Section: Introductionmentioning

confidence: 99%

“…The intensive use of agrochemicals increases their persistence in the soil and thereby negatively affecting the soil microbiota. The microorganisms that compose this microbiota respond in different ways to the different types of pesticides, and may exhibit increased or inhibited growth and metabolism (Chaplain et al, 2011;Chowdhury et al, 2008;Cycon et al, 2017). Many studies have shown that pesticides cause qualitative and quantitative changes in the soil microbiota (Duah-Yentumi and Johnson, 1986;Hartmann et al, 2015;Komorowicz et al, 2010), alteration of nitrogen cycling (Damin and Trivelin, 2011), changes in soil enzymatic activity, and disruption of the symbiosis between mycorrhizae and root nodules in legumes.…”

Section: Introductionmentioning

confidence: 99%

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Recent decades have witnessed major growth in the use of agrochemicals worldwide,for maximizing the food production for a rapidly growing human population. However, the indiscriminate use of these substances especially the pesticides has led to the accumulation of toxic residues in food, soil, air, and water, as well as the development of resistance in pests. Moreover, pesticides affect soil enzymes, which are essential catalysts that govern soil quality. In order to meet the food security, it is necessary to produce more food, sustainably and safely, in a diminishing area of available arable land and with decreased water resources. Given this situation, there is an increased interest in the use of alternative substances to synthetic agrochemicals that present less risk to the environment and human health while increasing the food safety. Promising results have been obtained using compounds derived from aromatic plants for the control of agricultural pests. Such compounds of botanical origin can be highly effective, with multiple mechanisms of action, while at the same time having low toxicity towards nontarget organisms. However, the large-scale application of these substances for pest control is limited by their poor stability and other technological issues. In this backdrop, the present work discusses perspectives for the use of compounds of botanical origin, as well as strategies employing the encapsulation techniques that can contribute to the development of systems for use in sustainable agricultural practices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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“…Gathering information about this performance involves investigating the sorption capacity of pesticides by biomass-soil mixtures and their potential for desorption as an indicator of the bioavailability of the sorbed compounds. These processes depend on the characteristics of wood-soil systems and on the properties of pesticides (Chaplain et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Study of processes influencing bioavailability of pesticides in wood-soil systems: Effect of different factors

Marín-Benito

Herrero‐Hernández

Rodríguez‐Cruz

et al. 2017

Ecotoxicology and Environmental Safety

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Lignocellulosic wastes and by-products containing lignin are now available in large amounts from forestry and industrial activities, and could be promising organic materials for the biosorption of pesticides by soils in order to reduce point-source pollution. Adding these materials to soil requires understanding the process of pesticide sorption-desorption by wood-soils, as sorption capacity could increase, with changes in pesticide bioavailability and final fate. The objective of this work was to study the effect that pine and oak wood added to soils had on the sorption/desorption of the pesticides linuron, alachlor, and metalaxyl. Experiments were conducted with two sandy loam and sandy clay soils each amended with two wood doses (5% and 50%) after different incubation times (0, 5 and 12 months). A low wood dose (5%) had no significant impact on the sorption (K) of alachlor, but K increased for linuron (up to 5.4-1.7 times) and metalaxyl (up to 4.4 and 8.6 times) in all wood-soil systems. The results were not significantly different after different incubation times. The desorption results indicated that wood decreases the sorption irreversibility of alachlor, and increases that of linuron and metalaxyl, with a varying effect of the wood-soil incubation time. The addition of a high wood dose to soil (50%) was more significant for increasing the sorption of all the pesticides, and the sorbed amounts remaining after desorption (>49% for linuron, >33% for alachlor and >6% for metalaxyl), although there was no apparent discrimination between the two types of woods. The role of the nature of the organic carbón (K values) for sorption was evidenced for alachlor and metalaxyl, but not for linuron. These outcomes are of interest for extending wood application to soil as a barrier for avoiding environmental risk by point-source pollution due to the use and management of pesticides in farming systems.

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“…Biotransformation of pesticides is carried out by living organisms (such as bacteria and fungi) and involves numerous biochemical transformation reactions, such as biodegradation, cometabolism and synthesis (Chaplain et al, 2011). Abiotic degradation is due to chemical or photochemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Biomonitoring of pesticides by pine needles — Chemical scoring, risk of exposure, levels and trends

Ratola

Homem

Silva

et al. 2014

Science of The Total Environment

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Vegetation is a useful matrix for the quantification of atmospheric pollutants such as semi-volatile organic compounds (SVOCs). In particular, pine needles stand out as effective biomonitors due to the excellent uptake properties of their waxy layer. Having previously validated an original and reliable method to analyse pesticides in pine needles, our workteam set the objective of this study to determine the levels of 18 pesticides in Pinus pinea needles collected in 12 different sampling sites in Portugal. These compounds were selected among a total of 70 pesticides by previous chemical scoring, developed to assess their probability to occur in the atmosphere. The risk of exposure was evaluated by the binomial chemical score / frequency of occurrence in the analyzed samples. Levels and trends of the chemical families and target of the pesticides were 2 obtained regarding the type of land occupation of the selected sites, including the use of advanced statistics (principal component analysis, PCA). Finally, some correlations with several characteristics of the sampling sites (population, energy consumption, meteorology, etc) were also investigated.

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Fate of Pesticides in Soils: Toward an Integrated Approach of Influential Factors

Cited by 40 publications

References 135 publications

Use of botanical insecticides for sustainable agriculture: Future perspectives

Use of botanical insecticides for sustainable agriculture: Future perspectives

Study of processes influencing bioavailability of pesticides in wood-soil systems: Effect of different factors

Biomonitoring of pesticides by pine needles — Chemical scoring, risk of exposure, levels and trends

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