Determination of groundwater origins and vulnerability based on multi-tracer investigations: New contributions from passive sampling and suspect screening approach

Pinasseau, Lucie; Mermillod‐Blondin, Florian; Fildier, Aurélie; Fourel, François; Vallier, Félix; Guillard, Ludovic; Wiest, Laure; Volatier, Laurence

doi:10.1016/j.scitotenv.2023.162750

Cited by 4 publications

(6 citation statements)

References 79 publications

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“…Validation studies of the developed model of the methodology for investigating safety indicators allow applying the methodology for monitoring surface waters of Ukraine. The search for a methodology for effective monitoring and detection of the effects of mixing surface water with various sources of pollution is described in the studies of other authors (Linlin et al, 2020;Pinasseau et al, 2023), which do not consider the content of suspended particles and their ability to absorb pesticides, but assume the presence of xenobiotics of various chemical groups in water.…”

Section: Resultsmentioning

confidence: 99%

“…At the preparatory stage of creating a new laboratory control methodology, it is necessary to assess the possibility of extracting target analytes from the sample (Tereshchenko et al, 2020), and, considering potential sources of contamination and the results of literature research, to create an expanded list of contaminants (Lopez et al, 2015;Pinasseau et al, 2023). The study of lipophilic xenobiotics in natural water samples is complicated by the presence of suspended particles that can be adsorbed by analytes ( Milyukin & Gorban, 2021).…”

Section: Resultsmentioning

confidence: 99%

“…These parameters are widely used in numerous theoretical and experimental models and studies of the distribution of differently functional chemical compounds in a system of two immiscible solvents ( Ferrari et al, 2018;Milyukin & Gorban, 2021). Given the changes in the component composition of agrochemicals, the persistence of xenobiotics in the environment and the prevalence of the use of a certain list of pesticides (Pinasseau et al, 2023), the search for optimal conditions for the methodology of extraction of target xenobiotics began with the consideration of the values of lipophilicity parameters (logD) of the molecules of active ingredients of various pesticide formulations (Table 1 In general, the scheme of sample preparation according to the proposed methodology is presented in Figure 1, aimed at the extraction of target xenobiotics molecules characterised by a wide range of lipophilicity parameters (Table 1). The proposed methodology is interesting because different molecules with appropriate logD parameters (Table 1) can be studied in the extract, and the methodology is not overloaded with the extraction and measurement of pesticide degradation products, specifically atrazine, which was investigated by other authors (Lopez et al, 2015) in surface water extracts.…”

Section: Resultsmentioning

confidence: 99%

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Methodology for determining the residual content of active ingredients of agrochemicals in surface waters

Tereshchenko,

Khyzhan,

Bobunov

et al. 2023

Rosl. g̀runtozn.

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Agricultural water bodies are multifunctional objects in the agricultural production cycle. Residual amounts of the active ingredients of pesticide agrochemicals can enter and contaminate a water body during some agro-technological tasks. The purpose of this study was to investigate the conditions for the extraction of residual amounts of xenobiotics from surface water containing suspended particles and to measure their content by chromatographic methods. To determine the optimal conditions for the extraction of target xenobiotics, the values of the lipophilicity parameters of their molecules were considered. The methodology for determining the content of lipophilic xenobiotics by chromatographic methods with mass-selective detection in surface water samples includes a step of separating suspended particles, the content of which in the samples under study was controlled by gravimetric analysis and varied within 135-1500 mg/m3. The target compounds were extracted using n-hexane and acetonitrile. The analytes in the acetonitrile concentrate were determined according to high-performance liquid and gas chromatography with mass-selective detectors (HPLC/MS/MS and GC/MS). The achieved limit of detection of xenobiotics was 0.02 µg/m3, the limit of quantification of xenobiotics was 0.10 µg/m3. To substantiate the possibility of applying the proposed methodology, the following indicators were investigated: linearity of analytical signals with the amount of analytes in the solution, correctness, convergence, and accuracy of measurement results. The linear concentration range of the method for the determination of xenobiotics of diverse groups is 0.10-1.00 µg/m3, characterised by a regression coefficient of the linear dependence of the measurement of individual compounds (R2) exceeding 0.99. The degree of analytes recovery (percentage of recovery r, %) was within 85-120%, which indicates the acceptability of the proposed xenobiotic extraction procedure. The error of the measurement results was calculated as the standard deviation (Sr, %), which did not exceed 6%. The findings of this study suggested that the developed methodology is suitable for monitoring the residual content of active ingredients of agrochemicals in surface waters and predicting the level of water pollution

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Methodology for determining the residual content of active ingredients of agrochemicals in surface waters

Tereshchenko,

Khyzhan,

Bobunov

et al. 2023

Rosl. g̀runtozn.

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show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Untitled

2023

Rosl. g̀runtozn.

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samples were analysed for humus content according to DSTU 4289:2004 and labile organic matter content according to DSTU 4732:2007. When chernozems are ploughed up, labile organic matter is mineralised the most and their share in humus decreases, while when arable land is converted to fallow land, it is restored the fastest. Minimising tillage systems and applying organic and mineral fertilisers increases the amount of labile organic matter in the humus of chernozems. The use of notill for sixteen years resulted in a 0.13% increase in humus content, and a 0.53% increase over fortytwo years compared to ploughing. The application of organo-mineral fertiliser increased the ratio of labile organic matter carbon content to total carbon content compared to the unfertilised variants. A strong correlation was found between the content of labile organic matter in chernozems and the yield of winter wheat and maize. The practical significance of the research results is to minimise the fertiliser rate and the C:N ratio to ensure gross crop yields and restore soil fertility

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Un nuevo método para la monitorización in-situ y la cuantificación de las respuestas dinámicas del agua subterránea a los efectos de la minería

Meng,

Wu,

Zeng

et al. 2024

Mine Water Environ

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Determination of groundwater origins and vulnerability based on multi-tracer investigations: New contributions from passive sampling and suspect screening approach

Cited by 4 publications

References 79 publications

Methodology for determining the residual content of active ingredients of agrochemicals in surface waters

Methodology for determining the residual content of active ingredients of agrochemicals in surface waters

Untitled

Un nuevo método para la monitorización in-situ y la cuantificación de las respuestas dinámicas del agua subterránea a los efectos de la minería

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