In Situ Catchment Scale Sampling of Emerging Contaminants Using Diffusive Gradients in Thin Films (DGT) and Traditional Grab Sampling: A Case Study of the River Thames, UK

• DOI: 10.1021/acs.est.0c01584
• Publication Date: 2020-08-15T02:04:13Z
• Authors: Runmei Wang; Emma Biles; Yanying Li; Monika D. Juergens; Michael J. Bowes; Kevin C. Jones; Hao Zhang
• Keywords: pharmaceuticals; impurities; 01 natural sciences; United Kingdom; 6. Clean water; 0104 chemical sciences; Diffusion; Rivers; 13. Climate action; 628; computer simulations; environmental pollution; organic compounds; Water Pollutants, Chemical; Environmental Monitoring; 0105 earth and related environmental sciences

The in situ passive sampling technique, diffusive gradients thin films (DGT), confronts many of the challenges associated with current methods used for emerging contaminants (ECs) aquatic systems. This study compared DGT and grab their suitability to screen monitor ECs at catchment scale River Thames system (U.K.) explored sources environmental fate. ubiquitous presence endocrine disrupting chemicals, parabens, metabolites is concern. first report organophosphate esters (OPEs) area. TEP (summer 13–160 winter 18–46, ng/L) TCPP 242–4282 215–854, were main OPEs. For chemicals which relatively stable rivers, good agreement. showed high variation water bodies, provided a better integral loadings exposure than sampling. was not as sensitive under procedures employed here, but there are several options improve it give comparable/better performance. samples require shorter preparation time analysis laboratory samples. Overall, can be powerful tool characterize throughout large dynamic system.