Employing complementary multivariate methods for a designed nontarget LC-HRMS screening of a wastewater-influenced river

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

Environmental pollution issues, such as the impact of wastewater treatment plants (WWTPs) to contaminate the recipient waters, are multivariate problems in which several variables with varying correlation values contribute. Chemometrics-based methods can play a critical role to study the occurrence and fate of contaminants of emerging concern (CECs) in an environmental pollution question. This study performed nontarget screening (NTS) with liquid chromatography-high resolution mass spectrometry (LC-HRMS) for the investigation of pollution patterns of river water samples affected by the effluent of a WWTP (upstream/downstream) at three sampling times. The complex data sets collected in a designed experiment were analyzed using the ROIMCR approach, using data selection from MS regions of interest (ROI). Then, multivariate curve resolution alternating least-squares (MCR-ALS) was applied for simultaneous resolution of 18 upstream/downstream river water samples. The resolved and cleaned matrix of peak areas were subjected to group-wise ANOVA-simultaneous component analysis (GASCA) for interpretation of the variations induced by location and time factors in a sparse principal component analysis way and to uncover the groups of pollutants co-occurring in the environment. The resolved groups of significant features based on sampling site factor were compared with the prioritized features using partial least squares-discriminant analysis (PLS-DA) least squares-discriminant analysis ures using partial least-squares-discriminant analysis (PLS-DA). Here, we focused on the environmental relevance of groups of compounds with significant variations for a few tentatively identified contaminants. This study clearly shows that employing complementary chemometric tools for NTS can improve the current knowledge on exposure trends of CECs in water bodies for further investigation.

OriginalspracheEnglisch
Aufsatznummer105641
ZeitschriftMicrochemical Journal
Jahrgang160
ISSN0026-265X
DOIs
PublikationsstatusErschienen - 01.2021
Extern publiziertJa

Bibliographische Notiz

Publisher Copyright:
© 2020 Elsevier B.V.

DOI

Zuletzt angesehen

Publikationen

  1. Income inequality, status decline and support for the radical right
  2. Reflections from five associate editors on their role in the journal and on its future directions
  3. Der dunkle Transhumanismus
  4. Consumer Online Search Behavior
  5. Local perceptions as a guide for the sustainable management of natural resources
  6. Effect of heat treatment on the microstructure and creep behavior of Mg-Sn-Ca alloys
  7. Process window and mechanical properties for thin magnesium- and zinc-wires in dieless wire drawing
  8. Organizational identity and firm growth
  9. Purpurne Zeichen
  10. Rosa
  11. Correlates of naturalization and occupancy of introduced ornamentals in Germany
  12. Filming Futures
  13. Die qualitative Analyse internetbasierter Daten
  14. "i like reggae and Bob Marley is already dead"
  15. The impact of foreign takeovers: comparative evidence from foreign and domestic acquisitions in Germany
  16. L’approche néo-institutionelle et ses implications pour le management des relations avec les stakeholders en phase start-up
  17. The Theory and Processes of Citizen Entrepreneurship
  18. The Predictive Power of Social Media Sentiment for Short-Term Stock Movements
  19. Die Kontingenz des Gegebenen
  20. "You Are The Only Person In This Conference"
  21. Eine kluge Energiewende ist nicht zu teuer
  22. Debattenkulturen im Wandel
  23. Im Dunkel der Sexualität
  24. A strategic model of European gas supply (GASMOD)
  25. § 13 Umweltschutz im Planungsrecht
  26. Pentecostal voices and discourse perspectives to LGBTQ+ narratives in Nigeria
  27. Lebensalter
  28. Ins Bild kommen
  29. The reputation costs of executive misconduct accusations
  30. Die Materialität des Klangs und die Medienpraxis der Musikkultur