A nationwide study of occurrence and exposure assessment of neonicotinoid insecticides and their metabolites in drinking water of China

Mahai, Gaga; Wan, Yanjian; Xia, Wei; Wang, Aizhen; Shi, Lisha; Qian, Xi; He, Zhen-Yu; Xu, Shunqing

doi:10.1016/j.watres.2020.116630

Cited by 113 publications

(40 citation statements)

References 51 publications

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“…Although the search for new and alternative insecticides is well on its way, 109 neonicotinoids are still in use in many countries, 110 some of which are reporting frequent detection of neonicotinoids in drinking water. 111 Modern water treatment facilities use multistep processes to remove potential unwanted residues from wastewater, but adsorption processes are still primarily used for removal of micropollutants, such as neonicotinoids. 112 Typically these processes use active carbon as an adsorbent, but the successful use of ILs has also been reported in cases where more specificity is required.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Martini 3 Coarse-Grained Model for Type III Deep Eutectic Solvents: Thermodynamic, Structural, and Extraction Properties

Vainikka

Thallmair

Souza

et al. 2021

ACS Sustainable Chem. Eng.

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Deep eutectic solvents (DESs) are a more environmentally friendly, cost-effective, and recyclable alternative for ionic liquids. Since the number of possible deep eutectic solvents is very large, there are needs for effective methods to predict the physicochemical nature of possible new deep eutectic solvents that are not met by the currently available models. Here, we have built coarse-grained models for a few well-known and actively studied deep eutectic solvents using the recently published Martini 3 force field. Molecular dynamics simulations demonstrate that our models predict the properties of these particular DESs with an acceptable accuracy, and they are capable of capturing known liquid−liquid extraction processes as well as morphological shape changes of surfactant aggregates. Our coarse-grained approach is novel in the study of DESs, opening new possibilities for rapid screening of new DESs and their properties.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Martini 3 Coarse-Grained Model for Type III Deep Eutectic Solvents: Thermodynamic, Structural, and Extraction Properties

Vainikka

Thallmair

Souza

et al. 2021

ACS Sustainable Chem. Eng.

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“… a Data sources: Velisek et al 2011; Wightwick et al 2012; Sánchez‐Bayo and Hyne 2014; Morrissey et al 2015; Wandscheer et al 2017; European Food Safety Authority 2019; Borsuah et al 2020; Pietrzak et al 2019, 2020; Pesticide Properties DataBase 2020a, 2020b; Mahai et al 2021; National Center for Biotechnology Information 2021.…”

Section: Methodsmentioning

confidence: 99%

Evaluating Multiple Biochemical Markers in Xenopus laevis Tadpoles Exposed to the Pesticides Thiacloprid and Trifloxystrobin in Single and Mixed Forms

Uçkun

Özmen

2021

Enviro Toxic and Chemistry

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Pesticide exposure is thought to be one of the common reasons for the decline in amphibian populations, a phenomenon that is a major threat to global biodiversity. Although the single effects of pesticides on amphibians have been well studied, the effects of mixtures are not well known. The present study aimed to evaluate the acute toxicity of the insecticide thiacloprid and the fungicide trifloxystrobin on early developmental stages of Xenopus laevis using various biochemical markers (glutathione S-transferase, glutathione reductase, acetylcholinesterase, carboxylesterase, glutathione peroxidase, catalase, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, Na + K + -adenosine triphosphatase [ATPase], Ca 2+ -ATPase, Mg 2+ -ATPase, and total ATPase). The median lethal concentrations (LC50s) of thiacloprid and trifloxystrobin were determined to be 3.41 and 0.09 mg a.i. L -1 , respectively. Tadpoles were exposed to the LC50, LC50/2, LC50/10, LC50/20, LC50/50, and LC50/100 of these pesticides. Both pesticides significantly affected (inhibited/activated) the biomarkers even at low concentrations. The pesticides showed a synergistic effect when applied as a mixture and altered the biomarkers more than when applied individually. In conclusion, we can assume that tadpoles are threatened by these pesticides even at environmentally relevant concentrations. Our findings provide important data to guide management of the ecotoxicological effects of these pesticides on nontarget amphibians.

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“…Lastly, Bradley et al [ 51 ] selected 224 and 119 target pesticides in water surface and sediment matrices, respectively, covering a wide spectrum of compounds. The remaining studies screened specific groups of compounds, such as neonicotinoid insecticides (NEOs) (e.g., acetamiprid, clothianidin, and imidacloprid) [ 52 , 53 ], OCPs and some specific metabolites [ 39 , 40 , 41 , 54 , 55 ], and OPPs and OCPs, among others [ 56 ].…”

Section: Indirect Approaches: Environmental Monitoringmentioning

confidence: 99%

“… Sample Nº Pesticides or Biomarkers Sample Treatment Separation and Detection Technique Recovery % LOD Ref. Matrix Volume/Weight Method Extraction Clean-up Drinking water (TPW and tap) 50 mL 7 LLE 30 mL DCM Purified passing sample through a chromatographic column UPLC–QqQ-MS/MS: in MRM ESI + 73–94% 30–70 ng/L [ 52 ] Drinking water (groundwater and tap) 500 mL 16 SPE Oasis HLB (6 cc/500 mg) eluted with 4 mL CAN + 4 mL methanol - UPLC–MS/MS: in MRM ESI + 74–123% 0.01–0.2 ng/L * [ 53 ] Groundwater 1000 mL 56 LLE 20 mL DCM (×3): with three pH conditions (6.5–8.0, <2.0, and >10.0) - GC–MS: SIM and SCAN mode EI 70–133% 2.5–247 (ng/L) [ ...…”

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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A nationwide study of occurrence and exposure assessment of neonicotinoid insecticides and their metabolites in drinking water of China

Cited by 113 publications

References 51 publications

Martini 3 Coarse-Grained Model for Type III Deep Eutectic Solvents: Thermodynamic, Structural, and Extraction Properties

Martini 3 Coarse-Grained Model for Type III Deep Eutectic Solvents: Thermodynamic, Structural, and Extraction Properties

Evaluating Multiple Biochemical Markers in Xenopus laevis Tadpoles Exposed to the Pesticides Thiacloprid and Trifloxystrobin in Single and Mixed Forms

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

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