Dissipation behavior and dietary risk assessment of lambda-cyhalothrin, thiamethoxam and its metabolite clothianidin in apple after open field application

Fan, Xueqi; Zhao, Shengming; Hu, Jiye

doi:10.1016/j.yrtph.2018.11.003

Cited by 31 publications

(15 citation statements)

References 24 publications

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“…Pre-harvest withholding intervals are usually set at seven days to ensure that pesticide residues are below the MRL [ 48 ]. However, half-lives of lambda-cyhalothrin and thiamethoxam have previously been noted from 7.01 d to 17.3 d [ 30 ], the half-life of abamectin was found to be 1.02 days in strawberry [ 49 ]. The dissipation rates of acetamiprid and lambda-cyhalothrin have previously been shown to be a first-order rate kinetic equation, with the half-lives of these chemicals in pomegranate fruits from 9.2 to 13 days and 13.5 to 17 days in the leaves [ 50 ].…”

Section: Resultsmentioning

confidence: 99%

“…The residue behavior of abamectin, chloranterbenamide, imidacloprid, and acetamiprid in the apple [ 29 , 30 ], grass carp [ 31 ], leek [ 32 ], tea [ 33 ], and cowpea [ 34 ] have been studied and reported in China and abroad. However, no systematic studies have been conducted to assess the residue distribution, degradation behavior, and associated dietary risk of clothianidam, imidacloprid, abamectin and chloranterbenamide in celery at the recommended dose and 1.5-fold the recommended dose.…”

Section: Introductionmentioning

confidence: 99%

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Pesticide Residue Behavior and Risk Assessment in Celery after Se Nanoparticles Application

Hejiang

Zhao

et al. 2021

Foods

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This study investigates pesticide levels in celery, and compares their degradation, dissipation, distribution, and dietary risk after spraying with selenium (Se) nanoparticles. Abamectin, imidacloprid, acetamiprid, thiamethoxam, and lambda-cyhalothrin were sprayed at 1.6, 6.8, 2.0, 1.0, and 0.7 g a.i. ha−1 followed by a 2 g·ha−1 Se nanoparticle application during the growing period. Thiamethoxam, abamectin, imidacloprid, lambda-cyhalothrin, and acetamiprid in celery degraded following a first order kinetic model after 2 g·ha−1 Se nanoparticles application. With the exception of acetamiprid, the half-lives of thiamethoxam, abamectin, imidacloprid, and lambda-cyhalothrin were reduced from 2.4, 0.5, 1.2, 4.2 days without Se nanoparticles application to 1.4, 0.2, 0.9, 3.7 days with the addition of Se nanoparticles (2 g·ha−1), respectively. The chronic dietary exposure risk probability (RQc) and the acute dietary exposure risk probability (RQa) of celery after Se nanoparticles application were within acceptable limits for consumption except for abamectin.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pesticide Residue Behavior and Risk Assessment in Celery after Se Nanoparticles Application

Hejiang

Zhao

et al. 2021

Foods

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“…ESI ionization differed between positive and negative depending on the target analytes. Fan et al [ 76 ] also applied LC–MS/MS-QqQ with positive electron ionization to specifically analyze thiamethoxam and clothianidin compounds. LC–FLD (fluorescence detector) was used to analyze residues of carbamate pesticides, and LC–DAD (diode array detection) was used to analyze imidacloprid and carbendazim from vegetables.…”

Section: Indirect Approaches: Environmental Monitoringmentioning

confidence: 99%

Non-Occupational Exposure to Pesticides: Experimental Approaches and Analytical Techniques (from 2019)

2021

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Background: Pesticide residues are a threat to the health of the global population, not only to farmers, applicators, and other pesticide professionals. Humans are exposed through various routes such as food, skin, and inhalation. This study summarizes the different methods to assess and/or estimate human exposure to pesticide residues of the global population. Methods: A systematic search was carried out on Scopus and web of science databases of studies on human exposure to pesticide residues since 2019. Results: The methods to estimate human health risk can be categorized as direct (determining the exposure through specific biomarkers in human matrices) or indirect (determining the levels in the environment and food and estimating the occurrence). The role that analytical techniques play was analyzed. In both cases, the application of generic solvent extraction and solid-phase extraction (SPE) clean-up, followed by liquid or gas chromatography coupled to mass spectrometry, is decisive. Advances within the analytical techniques have played an unquestionable role. Conclusions: All these studies have contributed to an important advance in the knowledge of analytical techniques for the detection of pesticide levels and the subsequent assessment of nonoccupational human exposure.

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“…Therefore, it is necessary to carry out the assessment of the residue level and dissipation behavior of pesticides after applying to vegetables, and establish the corresponding maximum residue limit (MRL) through these basic data. The establishment of MRL will provide an important technical guarantee for strengthening agricultural product quality and safety supervision and maintaining the sustainable development of agricultural international trade in China 3 , 4 .…”

Section: Introductionmentioning

confidence: 99%

Determination, residue analysis and risk assessment of thiacloprid and spirotetramat in cowpeas under field conditions

Chen

Xiang

et al. 2022

Sci Rep

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The dissipation and residue levels of thiacloprid, spirotetramat and its four metabolites residues in cowpeas were investigated under field conditions. The QuEChERS technique with high-performance liquid chromatography tandem mass spectrometry (HPLC–MS/MS) was used to detect thiacloprid, spirotetramat and its four metabolites residues content in cowpeas. The recoveries were 81.3–95.1% at a spike level of 0.005–0.5 mg/kg, the relative standard deviations (RSDs) were 2.1–9.5%. The dissipation kinetics data showed that thiacloprid and spirotetramat in cowpeas were degraded with the half-lives of 1.14–1.54 days and 1.25–2.79 days. The terminal residues of thiacloprid and spirotetramat were 0.0255–0.4570 mg kg−1 and 0.0314–0.3070 mg kg−1 after application 2 times with a pre-harvest interval (PHI) of 3 days under the designed dosages. The chronic and acute dietary exposure assessment risk quotient (RQ) values of thiacloprid in cowpeas for different consumers were 2.44–4.41% and 8.72–15.78%, respectively, and those of spirotetramat were 1.03–1.87% and 0.18–0.32%, respectively, all of the RQ values were lower than 100%. The dietary risk of thiacloprid through cowpeas to consumers was higher than spirotetramat. The results from this study are important reference for Chinese governments to develop criteria for the safe and rational use of thiacloprid and spirotetramat, setting maximum residue levels (MRLs), monitoring the quality safety of agricultural products and protecting consumer health.

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Dissipation behavior and dietary risk assessment of lambda-cyhalothrin, thiamethoxam and its metabolite clothianidin in apple after open field application

Cited by 31 publications

References 24 publications

Pesticide Residue Behavior and Risk Assessment in Celery after Se Nanoparticles Application

Pesticide Residue Behavior and Risk Assessment in Celery after Se Nanoparticles Application

Non-Occupational Exposure to Pesticides: Experimental Approaches and Analytical Techniques (from 2019)

Determination, residue analysis and risk assessment of thiacloprid and spirotetramat in cowpeas under field conditions

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