Perspectives of compound-specific isotope analysis of organic contaminants for assessing environmental fate and managing chemical pollution

Nature Water, Год журнала: 2024, Номер 2(1), С. 14 - 30

Опубликована: Янв. 17, 2024

Язык: Английский

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Stable isotope composition of pesticides in commercial formulations: The ISOTOPEST database

Chemosphere, Год журнала: 2024, Номер 352, С. 141488 - 141488

Опубликована: Фев. 16, 2024

By assessing the changes in stable isotope compositions within individual pesticide molecules, Compound Specific Isotope Analysis (CSIA) holds potential to identify and differentiate sources quantify degradation environment. However, environmental application of CSIA is limited by general lack knowledge regarding initial isotopic composition active substances commercially available formulations used farmers. To address this limitation, we established a database aimed at cataloguing disseminating signatures commercial expand use CSIA. Our study involved collection 25 analytical standards 120 from 23 manufacturers. Subsequently, 59 were extracted, each their substance was analyzed for both δ

Язык: Английский

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Optimizing the QuEChERS method for efficient monitoring of fipronil, thiobencarb, and cartap residues in paddy soils with varying properties

Environmental Monitoring and Assessment, Год журнала: 2024, Номер 196(2)

Опубликована: Янв. 9, 2024

Язык: Английский

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Novel extraction methods and compound-specific isotope analysis of methoxychlor in environmental water and aquifer slurry samples

The Science of The Total Environment, Год журнала: 2024, Номер 931, С. 172858 - 172858

Опубликована: Май 5, 2024

Multi-element compound-specific stable isotope analysis (ME-CSIA) allows monitoring the environmental behavior and transformation of most common persistent contaminants. Recent advancements in analytical techniques have extended applicability ME-CSIA to organic micropollutants, including pesticides. Nevertheless, application this methodology remains unexplored concerning harmful insecticides such as methoxychlor, a polar organochlorine pesticide usually detected soil groundwater. This study introduces methods for dual carbon chlorine (δ

Язык: Английский

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Comment on egusphere-2024-2840

Опубликована: Янв. 13, 2025

Abstract. The prediction of pesticide dissipation on the catchment scale through hydrological models often encounters challenges due to limited availability field data capable distinguishing between degradative and non-degradative processes. This limitation complicates calibration frequently results in equifinality, impeding reliable forecast persistence soil its transportation from agricultural plots outlet. study examines benefits integrating Compound-Specific Isotope Analysis (CSIA) improve predictive accuracy assessing off-site transport at scale. research was conducted a 47-ha crop catchment, focusing widely used pre-emergence herbicide S-metolachlor. A novel conceptual model, named PIBEACH, developed predict daily rivers, incorporating changes carbon isotopic signatures (δ¹³C) targeted during degradation. Parameter model uncertainties were estimated using Generalized Likelihood Uncertainty Estimation (GLUE) method. inclusion S-metolachlor concentrations topsoil their associated δ¹³C values resulted more than two-fold reduction related degradation half-life six metrics transport. Moreover, indicates that moderate yet sampling effort can effectively identify hot-spots hot-moments when isotope fractionation is integrated into model. In summary, incorporation CSIA distributed holds potential alleviate parameter therewith significantly improving our ability dynamics

Язык: Английский

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Dissipation of the insecticide profenofos in tropical agricultural soils (Berambadi catchment, South India): insight from compound-specific isotope analysis (CSIA)

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 137428 - 137428

Опубликована: Янв. 1, 2025

Язык: Английский

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Lack of selectivity in sample preparation ‒ An achilles heel of compound-specific isotope analysis for environmental micropollutants

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 180, С. 117908 - 117908

Опубликована: Авг. 12, 2024

The role of compound-specific isotope analysis (CSIA) in environmental research has been proven over the last few decades. Despite advances analytical methods and instrumentation, applying CSIA to low-concentration contaminants, especially at field scale, remains limited. In this perspective paper, we argue that limitation stems from underdeveloped sample preparation techniques, particularly lack required selectivity. Drawing an extensive review nearly 600 studies on (i) analyze methodologies' distribution dedication studies, discussing their connection with maturity suitable techniques. Additionally, (ii) examine general trends sorbent phase technologies, assessing adequacy meet CSIA's targeted nature applicability micropollutants. advocating for a paradigm shift, (iii) emphasize need adapt future development strategies light past current innovations.

Язык: Английский

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Evaluating pesticide degradation in artificial wetlands with compound-specific isotope analysis: A case study with the fungicide dimethomorph

The Science of The Total Environment, Год журнала: 2023, Номер 900, С. 165767 - 165767

Опубликована: Июль 26, 2023

Язык: Английский

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Dimethomorph degradation in vineyards examined by isomeric and isotopic fractionation

Chemosphere, Год журнала: 2022, Номер 313, С. 137341 - 137341

Опубликована: Ноя. 21, 2022

Язык: Английский

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Tracking atrazine degradation in soil combining 14C-mineralisation assays and compound-specific isotope analysis

Chemosphere, Год журнала: 2024, Номер 363, С. 142981 - 142981

Опубликована: Июль 30, 2024

The quantification of pesticide dissipation in agricultural soil is challenging. In this study, we investigated atrazine biodegradation both liquid and experiments bioaugmented with distinct atrazine-degrading bacterial isolates. This was achieved by combining

Язык: Английский

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