Occurrence and partitioning of p-phenylenediamine antioxidants and their quinone derivatives in water and sediment

p-Phenylenediamine antioxidants (PPDs) and PPDs-derived quinones (PPDQs) may pose a threat to the river ecosystem. However, the knowledge on the occurrence and environmental behaviors of PPDs and PPDQs in the natural river environment remains unknown. In this study, we collected paired water (n = 30...

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Veröffentlicht in:The Science of the total environment 2024-03, Vol.914, p.170046, Article 170046
Hauptverfasser: Zhu, Jianqiang, Guo, Ruyue, Ren, Fangfang, Jiang, Shengtao, Jin, Hangbiao
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Sprache:eng
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Zusammenfassung:p-Phenylenediamine antioxidants (PPDs) and PPDs-derived quinones (PPDQs) may pose a threat to the river ecosystem. However, the knowledge on the occurrence and environmental behaviors of PPDs and PPDQs in the natural river environment remains unknown. In this study, we collected paired water (n = 30) and sediment samples (n = 30) from Jiaojiang River, China and analyzed them for nine PPDs and seven PPDQs. Our results showed that target PPDs and PPDQs are frequently detected in water samples, with the dominance of N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD; mean 12 ng/L, range 4.0–72 ng/L) and 6PPD-derived quinone (6PPDQ; 7.0 ng/L,
ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2024.170046