
Environment International, Год журнала: 2024, Номер 193, С. 109139 - 109139
Опубликована: Ноя. 1, 2024
As a group of emerging contaminants global concern, tire additives and their transformation products (TATPs) are causing severe threat to aquatic ecosystems, particularly the highly lethal effects N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q) on certain fish species. Yet, contamination status TATPs in lake ecosystems remains largely uncharacterized. This study conducted first nationwide monitoring distribution characteristics 208 sediments collected from five regions across China. All 13 were identified sediments, with total levels varying between 1.4 1355 ng/g, 4-hydroxydiphenylamine (4-OH-PPD) as most dominant. The decreased following order: Yunnan-Guizhou Plateau > Inner Mongolia-Xinjiang Region, Eastern Plain Qinghai-Tibet Plateau, Northeast (p < 0.05). geographical was significantly driven by organic carbon content, temperature, population density. N,N'-di-2-naphthyl-p-phenylenediamine, 6PPD-Q, N,N'-diphenyl-p-phenylenediamine, 4-OH-PPD belonged high-priority contaminants. Our emphasizes that pollutant place significant pressure deserve urgent attention.
Язык: Английский