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. 2023 Apr 20;30(24):65192–65203. doi: 10.1007/s11356-023-27052-8

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© The Author(s) 2023

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — Comparison of average %R_SS on 102 mm QFF and 58 mm ACF 3A for dl-PCBs (Set-up B), at different sampling times (and corresponding volumes). A 24 h (288 m³); B 72 h (876 m³); C 168 h (2016 m.³). The individual PCB congeners are reported according to the IUPAC nomenclature; the “L” means “labelled”