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April 10, 2026Journal of Hazardous MaterialsOpen Access

Multi-criteria risk assessment for prioritising contaminants of emerging concern in treated wastewater and surface waters

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Authors

EKElena KoumakiNational Technical University of AthensEKEvina KatsouImperial College LondonSMSimos MalamisNational Technical University of Athens

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Overview

Evaluates environmental risks from contaminants in wastewater, suggesting improved monitoring methods.

Key Points

  • The aim is to prioritize contaminants of emerging concern (CECs) using a multi-criteria risk assessment framework.
  • Applied a multi-criteria risk assessment framework to CECs in treated wastewater and surface waters.
  • Integrated three methodologies: Occurrence–Persistence–Bioaccumulation–Toxicity, Risk Quotients, and Toxic Units.
  • Conducted a mixture risk assessment on a dataset from a decentralized wastewater treatment plant.
  • Cumulative risks exceeded accepted thresholds by over an order of magnitude despite individual risks being low.
  • A few dominant substances accounted for most mixture toxicity.
  • Key substances identified include galaxolidone, fipronil, and diclofenac, ranked high in multiple metrics.

Cite This Study

Koumaki et al. (2026) studied this question.

synapsesocial.com/papers/69d8930e6c1944d70ce04261https://doi.org/10.1016/j.jhazmat.2026.142002
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