Beyond target chemicals: updating the NORMAN prioritisation scheme to support the EU chemicals strategy with semi-quantitative suspect/non-target screening data - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Environmental Sciences Europe Year : 2024

Beyond target chemicals: updating the NORMAN prioritisation scheme to support the EU chemicals strategy with semi-quantitative suspect/non-target screening data

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 NKUA - National and Kapodistrian University of Athens
3 MUNI - Masaryk University [Brno]
4 University of Luxembourg [Luxembourg]
5 Aarhus University [Aarhus]
6 Swiss Federal Institute of Aquatic Science and Technology
7 IBP - Institute of Biogeochemistry and Pollutant Dynamics [ETH Zürich]
8 UFZ - Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research
9 Yale University [New Haven]
10 SLU - Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet
11 ISSeP - Institut scientifique de service public [Liège]
12 Environmental Institute Kos
13 STU - Slovak University of Technology in Bratislava
14 AD Eco Advies
15 DERAC Environmental Risk Assessment Chem
16 UBA - German Federal Environmental Agency / Umweltbundesamt
17 CIRSEE - Centre International de Recherche Sur l'Eau et l'Environnement [Suez]
18 KEMI - Swedish Chemicals Agency
19 IDAEA - Institute of Environmental Assessment and Water Research
20 Umeå University, Sweden
21 Swiss Centre for Applied Ecotoxicology (Ecotox Center)
22 KWR Watercycle Research Institute
23 BRGM - Bureau de Recherches Géologiques et Minières
24 IRSA - CNR Water Research Institute
25 INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement
26 RiverLy - RiverLy - Fonctionnement des hydrosystèmes
27 Aveco de Bondt
28 Environmental Protection Agency, Ireland
29 NILU - Norwegian Institute for Air Research
32 OFB - Office français de la biodiversité
33 Association of River Water Companies
34 UCPH - University of Copenhagen = Københavns Universitet
Anja Derksen
  • Function : Author
Leonard Osté
  • Function : Author
Laetitia Six
  • Function : Author
Anne Togola


Background Prioritisation of chemical pollutants is a major challenge for environmental managers and decision-makers alike, which is essential to help focus the limited resources available for monitoring and mitigation actions on the most relevant chemicals. This study extends the original NORMAN prioritisation scheme beyond target chemicals, presenting the integration of semi-quantitative data from retrospective suspect screening and expansion of existing exposure and risk indicators. The scheme utilises data retrieved automatically from the NORMAN Database System (NDS), including candidate substances for prioritisation, target and suspect screening data, ecotoxicological effect data, physico-chemical data and other properties. Two complementary workflows using target and suspect screening monitoring data are applied to first group the substances into six action categories and then rank the substances using exposure, hazard and risk indicators. The results from the ‘target’ and ‘suspect screening’ workflows can then be combined as multiple lines of evidence to support decision-making on regulatory and research actions. Results As a proof-of-concept, the new scheme was applied to a combined dataset of target and suspect screening data. To this end, > 65,000 substances on the NDS, of which 2579 substances supported by target wastewater monitoring data, were retrospectively screened in 84 effluent wastewater samples, totalling > 11 million data points. The final prioritisation results identified 677 substances as high priority for further actions, 7455 as medium priority and 326 with potentially lower priority for actions. Among the remaining substances, ca. 37,000 substances should be considered of medium priority with uncertainty, while it was not possible to conclude for 19,000 substances due to insufficient information from target monitoring and uncertainty in the identification from suspect screening. A high degree of agreement was observed between the categories assigned via target analysis and suspect screening-based prioritisation. Suspect screening was a valuable complementary approach to target analysis, helping to prioritise thousands of substances that are insufficiently investigated in current monitoring programmes. Conclusions This updated prioritisation workflow responds to the increasing use of suspect screening techniques. It can be adapted to different environmental compartments and can support regulatory obligations, including the identification of specific pollutants in river basins and the marine environments, as well as the confirmation of environmental occurrence levels predicted by modelling tools. Graphical Abstract
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Dates and versions

hal-04636520 , version 1 (05-07-2024)




Valeria Dulio, Nikiforos Alygizakis, Kelsey Ng, Emma L Schymanski, Sandrine Andres, et al.. Beyond target chemicals: updating the NORMAN prioritisation scheme to support the EU chemicals strategy with semi-quantitative suspect/non-target screening data. Environmental Sciences Europe , 2024, 36 (1), pp.113. ⟨10.1186/s12302-024-00936-3⟩. ⟨hal-04636520⟩
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