4.7 Article

Field evaluation of diffusive gradients in thin-film passive samplers for wastewater-based epidemiology

期刊

SCIENCE OF THE TOTAL ENVIRONMENT
卷 773, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.scitotenv.2021.145480

关键词

Wastewater based epidemiology; Diffusive gradient in thin film; Illicit drugs; Antibiotics; Hanoi; Guangzhou

资金

  1. International Partnership Program of the Chinese Academy of Sciences [132744KYSB20170002]
  2. STS Regional Key Project of the Chinese Academy of Sciences [KFJ-STS-QYZX-091]
  3. Local Innovative Scientific Research Team Project of Guangdong Pearl River Talents Plan [2017BT01Z134]
  4. Guangdong Foundation for Program of Science and Technology Research [2020B1212060053]
  5. Guangdong Provincial Science and Technology Projects: Guangdong-Hong Kong-Macao Greater Bay Area Urban Agglomeration Ecosystem Observation and Research Station [2018B030324002]
  6. SKLOG Open Funding Project [SKLOG-201929]

向作者/读者索取更多资源

This study investigated the potential use of diffusive gradients in thin films to sample organic compounds (o-DGT) for wastewater-based epidemiology. Results showed that the HLB resin performed better than the XAD 18 and XDA-1 resins, with methamphetamine and heroin being the two most popular illicit drugs consumed among the studied populations. Overall, the findings demonstrate that o-DGT passive samplers are a promising tool for WBE studies.
There is a need for a simple water sampling technique to enable routine monitoring of community drug consumption through wastewater-based epidemiology (WBE). This study investigates the potential use of diffusive gradients in thin films to sample organic compounds (o-DGT) for WBE. Three types of resin gels (HLB, XAD 18, and XDA-1) within o-DGT samplers each were deployed in triplicate at the inlets of two sewage treatment plants of Southern Asian cities. The target compounds included 15 illicit drugs and 18 antibiotics. A comprehensive evaluation was undertaken regarding each resin's ability to accumulate the target compounds and accuracy by comparing active samples. The organic compounds accumulated on each resin gel were characterised at the molecular level using Fourier transform ion-cyclotron-resonance mass spectrometry (FT-ICR MS). The results showed that the HLB resin performed better than the XAD 18 and XDA-1 resins. Based on calculations using the HLB-DGT data, methamphetamine and heroin were the two most popular illicit drugs consumed among the studied populations, and were followed by ketamine and codeine, which agreed well with the authoritative reports and reference data. The total drug consumption in Hanoi was one order of magnitude higher than that in Guangzhou, thus implying a probably more serious drug situation in the former. Overall, the findings of this study demonstrate that o-DGT passive samplers are a promising tool for WBE studies, particularly at WWTPs or in urban streams where an automatic sampler for taking composite water samples is absent. (C) 2021 Elsevier B.V. All rights reserved.

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