Exploring micropollutants in polar environments based on non-target analysis using LC-HRMS.

Autor: Kang D; Department of Environmental Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of Korea., Ahn YY; Korea Polar Research Institute (KOPRI), Incheon 21990, Republic of Korea., Moon HB; Department of Marine Sciences and Convergent Technology, College of Science and Convergence Technology, Hanyang University, Ansan 15588, Republic of Korea., Kim K; Korea Polar Research Institute (KOPRI), Incheon 21990, Republic of Korea; Department of Polar Science, University of Science of Technology (UST), Incheon 21990, Republic of Korea., Jeon J; Department of Environmental Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of Korea; School of Smart and Green Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of Korea. Electronic address: jjh0208@changwon.ac.kr.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Dec; Vol. 209 (Pt A), pp. 117083. Date of Electronic Publication: 2024 Oct 10.
DOI: 10.1016/j.marpolbul.2024.117083
Abstrakt: The routine use of chemicals in polar regions contributes to unexpected occurrence of micropollutants, with sewage discharge as a prominent pollution source. The aim of this study was to identify and quantify micropollutants in polar environments near potential point sources using non-target analysis (NTA) with liquid chromatography high-resolution mass spectrometry. Seawater samples were collected from Ny-Ålesund, Svalbard and Marian Cove, King George Island, in 2023. We tentatively identified 32 compounds with NTA, along with 105 homologous series substances. Of these, 18 substances were confirmed, and 13 were quantified using the internal standard method. Most quantified substances in the Ny-Ålesund, including caffeine, naproxen, and polyethylene glycols (PEGs), exhibited concentrations ranged from 0.9 to 770,000 ng/L. In Marian Cove, the analysis predominantly detected acetaminophen, with concentrations ranging from 13 to 35 ng/L. The findings underscore the presence and spatial distribution of emerging micropollutants resulting from wastewater discharge in polar regions.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024. Published by Elsevier Ltd.)
Databáze: MEDLINE
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