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Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters

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Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters. / Xiong, J.; Pu, C.; Qian, Z. et al.
In: Water Research, Vol. 269, 122772, 01.02.2025.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Xiong, J, Pu, C, Qian, Z, Yi, J, Wang, K, Zhang, C, Liu, W, Chen, W, Xu, L, Qi, S, Zhang, Z, Zhang, H & Jones, KC 2025, 'Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters', Water Research, vol. 269, 122772. https://doi.org/10.1016/j.watres.2024.122772

APA

Xiong, J., Pu, C., Qian, Z., Yi, J., Wang, K., Zhang, C., Liu, W., Chen, W., Xu, L., Qi, S., Zhang, Z., Zhang, H., & Jones, K. C. (2025). Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters. Water Research, 269, Article 122772. https://doi.org/10.1016/j.watres.2024.122772

Vancouver

Xiong J, Pu C, Qian Z, Yi J, Wang K, Zhang C et al. Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters. Water Research. 2025 Feb 1;269:122772. Epub 2024 Nov 25. doi: 10.1016/j.watres.2024.122772

Author

Xiong, J. ; Pu, C. ; Qian, Z. et al. / Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters. In: Water Research. 2025 ; Vol. 269.

Bibtex

@article{1656f7814c37475692350108983f830f,
title = "Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters",
abstract = "Neonicotinoid insecticides (NNIs) are among the most widely-used insecticides, although their threat to non-target organisms has attracted attention in recent years. In this study, a diffusive gradient in thin-films (DGT) passive sampling technique was developed for in situ monitoring of time-weighted average (TWA) concentrations of NNIs in groundwater and wastewater. Systematic studies demonstrated that DGT with HLB as binding gels (HLB-DGT) is suitable for quantitative sampling of NNIs under a wide range of conditions, independent of pH (5–9.5), ionic strength (0.001–0.5 M) and dissolved organic matter (0–10 mg/L). The HLB-DGT performance was also independent of the typical groundwater ionic environments. The thicknesses of in-situ measured diffusive boundary layer were 0.35 and 0.25 mm in the groundwater and effluent, respectively. HLB-DGT can provide TWA concentrations over 14–18 days{\textquoteright} deployment with linear uptake in both groundwater and wastewater. Concentrations and occurrence patterns of NNIs obtained by HLB-DGT were consistent with those measured from grab samples. The median TWA concentration of NNIs was 4.42 ng/L in water from the largest urban lake of China (the Tangxun Lake) in winter, with wastewater discharge being the main potential source. The reliability and stability of the HLB-DGT for measuring NNIs in the groundwater and surface water were confirmed and can be used to improve understanding of the occurrence and fate of NNIs in aquatic environment. ",
keywords = "Diffusive gradients in thin-films (DGT), Groundwater, Neonicotinoid insecticides (NNIs), Passive sampling, Wastewater, Groundwater pollution, Lakes, Diffusive gradient in thin-film, Diffusive gradients in thin films, In-situ measurement, Measurements of, Neonicotinoid insecticide, Neonicotinoid insecticides, Non-target organism, Sampling technique, Time-weighted average concentrations, Ionic strength, insecticide, neonicotinoid, aquatic environment, dissolved organic matter, groundwater-surface water interaction, in situ measurement, neonicotinoid pesticide, thin section, wastewater treatment, adsorption kinetics, Article, boundary layer, China, diffusive gradients in thin films, effluent, environmental monitoring, instrument detection limit, ionic strength, ionization, lake, long term exposure, maximum concentration, nontarget organism, pH, quality control, quality control procedure, reliability, rural area, solid phase extraction, thickness, ultrasound assisted extraction, wastewater, water flow, water temperature, winter, Hubei, Tangxun Lake",
author = "J. Xiong and C. Pu and Z. Qian and J. Yi and K. Wang and C. Zhang and W. Liu and W. Chen and L. Xu and S. Qi and Z. Zhang and H. Zhang and K.C. Jones",
year = "2025",
month = feb,
day = "1",
doi = "10.1016/j.watres.2024.122772",
language = "English",
volume = "269",
journal = "Water Research",
issn = "0043-1354",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Diffusive gradients in thin-films (DGT) for in situ measurement of neonicotinoid insecticides (NNIs) in waters

AU - Xiong, J.

AU - Pu, C.

AU - Qian, Z.

AU - Yi, J.

AU - Wang, K.

AU - Zhang, C.

AU - Liu, W.

AU - Chen, W.

AU - Xu, L.

AU - Qi, S.

AU - Zhang, Z.

AU - Zhang, H.

AU - Jones, K.C.

PY - 2025/2/1

Y1 - 2025/2/1

N2 - Neonicotinoid insecticides (NNIs) are among the most widely-used insecticides, although their threat to non-target organisms has attracted attention in recent years. In this study, a diffusive gradient in thin-films (DGT) passive sampling technique was developed for in situ monitoring of time-weighted average (TWA) concentrations of NNIs in groundwater and wastewater. Systematic studies demonstrated that DGT with HLB as binding gels (HLB-DGT) is suitable for quantitative sampling of NNIs under a wide range of conditions, independent of pH (5–9.5), ionic strength (0.001–0.5 M) and dissolved organic matter (0–10 mg/L). The HLB-DGT performance was also independent of the typical groundwater ionic environments. The thicknesses of in-situ measured diffusive boundary layer were 0.35 and 0.25 mm in the groundwater and effluent, respectively. HLB-DGT can provide TWA concentrations over 14–18 days’ deployment with linear uptake in both groundwater and wastewater. Concentrations and occurrence patterns of NNIs obtained by HLB-DGT were consistent with those measured from grab samples. The median TWA concentration of NNIs was 4.42 ng/L in water from the largest urban lake of China (the Tangxun Lake) in winter, with wastewater discharge being the main potential source. The reliability and stability of the HLB-DGT for measuring NNIs in the groundwater and surface water were confirmed and can be used to improve understanding of the occurrence and fate of NNIs in aquatic environment.

AB - Neonicotinoid insecticides (NNIs) are among the most widely-used insecticides, although their threat to non-target organisms has attracted attention in recent years. In this study, a diffusive gradient in thin-films (DGT) passive sampling technique was developed for in situ monitoring of time-weighted average (TWA) concentrations of NNIs in groundwater and wastewater. Systematic studies demonstrated that DGT with HLB as binding gels (HLB-DGT) is suitable for quantitative sampling of NNIs under a wide range of conditions, independent of pH (5–9.5), ionic strength (0.001–0.5 M) and dissolved organic matter (0–10 mg/L). The HLB-DGT performance was also independent of the typical groundwater ionic environments. The thicknesses of in-situ measured diffusive boundary layer were 0.35 and 0.25 mm in the groundwater and effluent, respectively. HLB-DGT can provide TWA concentrations over 14–18 days’ deployment with linear uptake in both groundwater and wastewater. Concentrations and occurrence patterns of NNIs obtained by HLB-DGT were consistent with those measured from grab samples. The median TWA concentration of NNIs was 4.42 ng/L in water from the largest urban lake of China (the Tangxun Lake) in winter, with wastewater discharge being the main potential source. The reliability and stability of the HLB-DGT for measuring NNIs in the groundwater and surface water were confirmed and can be used to improve understanding of the occurrence and fate of NNIs in aquatic environment.

KW - Diffusive gradients in thin-films (DGT)

KW - Groundwater

KW - Neonicotinoid insecticides (NNIs)

KW - Passive sampling

KW - Wastewater

KW - Groundwater pollution

KW - Lakes

KW - Diffusive gradient in thin-film

KW - Diffusive gradients in thin films

KW - In-situ measurement

KW - Measurements of

KW - Neonicotinoid insecticide

KW - Neonicotinoid insecticides

KW - Non-target organism

KW - Sampling technique

KW - Time-weighted average concentrations

KW - Ionic strength

KW - insecticide

KW - neonicotinoid

KW - aquatic environment

KW - dissolved organic matter

KW - groundwater-surface water interaction

KW - in situ measurement

KW - neonicotinoid pesticide

KW - thin section

KW - wastewater treatment

KW - adsorption kinetics

KW - Article

KW - boundary layer

KW - China

KW - diffusive gradients in thin films

KW - effluent

KW - environmental monitoring

KW - instrument detection limit

KW - ionic strength

KW - ionization

KW - lake

KW - long term exposure

KW - maximum concentration

KW - nontarget organism

KW - pH

KW - quality control

KW - quality control procedure

KW - reliability

KW - rural area

KW - solid phase extraction

KW - thickness

KW - ultrasound assisted extraction

KW - wastewater

KW - water flow

KW - water temperature

KW - winter

KW - Hubei

KW - Tangxun Lake

U2 - 10.1016/j.watres.2024.122772

DO - 10.1016/j.watres.2024.122772

M3 - Journal article

VL - 269

JO - Water Research

JF - Water Research

SN - 0043-1354

M1 - 122772

ER -