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| Main Authors: | , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Marine environmental research
2026
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41780266/ |
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| _version_ | 1868266077002137602 |
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| author | Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang |
| author_facet | Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang |
| collection | PubMed - marine biology |
| contents | Occurrence and partitioning of p-phenylenediamines and their quinones in seawater and sediment from East China Sea. Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang Water Pollutants, Chemical Seawater Geologic Sediments Environmental Monitoring China Phenylenediamines Quinones As a group of emerging contaminants of global concern, tire additives and their transformation products are causing a severe threat to aquatic ecosystems. Recent studies have shown that N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q) has an acute lethal effect on coho salmon (Oncorhynchus kisutch). However, data on the occurrence and ecological risks of tire additives and their quinoid transformation products in the environment of the East China Sea remain scarce. In this study, seawater (n = 78) and surface sediment (n = 39) samples were collected from the East China Sea to investigate the distribution characteristics, interphase partitioning, and potential ecological risks of seven PPDs and seven PPD-Qs. The results showed that the target PPDs and PPD-Qs were frequently detected in seawater and sediments. Higher contaminant concentrations were observed in surface water than in bottom water, and in coastal areas than in offshore areas. Among PPDs, N,N'-bis(2-methylphenyl)-1,4-benzenediamine (DTPD) had the highest mean log-transformed sediment-water partition coefficient (log K) value, and DPPD-Q showed the highest mean log K among PPD-Qs. Ecological risk assessment using risk quotients indicated that IPPD and 6PPD-Q in sediments presented moderate to high ecological risks. This study provides reliable and detailed data support for the systematic assessment of the pollution levels and environmental behavior of PPDs and PPD-Qs in the East China Sea. |
| format | Artículo científico |
| id | pubmed_41780266 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Marine environmental research |
| record_format | pubmed |
| spellingShingle | Occurrence and partitioning of p-phenylenediamines and their quinones in seawater and sediment from East China Sea. Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang Water Pollutants, Chemical Seawater Geologic Sediments Environmental Monitoring China Phenylenediamines Quinones Occurrence and partitioning of p-phenylenediamines and their quinones in seawater and sediment from East China Sea. Zhu, Ningning Liu, Mingzhi Yan, Zhongyong Zhou, Hanghai Wu, Zhou Xiao, Zeyu Jiang, Rijin Mu, Qinglin Li, Yanhong Zhang, Chunfang Water Pollutants, Chemical Seawater Geologic Sediments Environmental Monitoring China Phenylenediamines Quinones As a group of emerging contaminants of global concern, tire additives and their transformation products are causing a severe threat to aquatic ecosystems. Recent studies have shown that N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q) has an acute lethal effect on coho salmon (Oncorhynchus kisutch). However, data on the occurrence and ecological risks of tire additives and their quinoid transformation products in the environment of the East China Sea remain scarce. In this study, seawater (n = 78) and surface sediment (n = 39) samples were collected from the East China Sea to investigate the distribution characteristics, interphase partitioning, and potential ecological risks of seven PPDs and seven PPD-Qs. The results showed that the target PPDs and PPD-Qs were frequently detected in seawater and sediments. Higher contaminant concentrations were observed in surface water than in bottom water, and in coastal areas than in offshore areas. Among PPDs, N,N'-bis(2-methylphenyl)-1,4-benzenediamine (DTPD) had the highest mean log-transformed sediment-water partition coefficient (log K) value, and DPPD-Q showed the highest mean log K among PPD-Qs. Ecological risk assessment using risk quotients indicated that IPPD and 6PPD-Q in sediments presented moderate to high ecological risks. This study provides reliable and detailed data support for the systematic assessment of the pollution levels and environmental behavior of PPDs and PPD-Qs in the East China Sea. |
| title | Occurrence and partitioning of p-phenylenediamines and their quinones in seawater and sediment from East China Sea. |
| topic | Water Pollutants, Chemical Seawater Geologic Sediments Environmental Monitoring China Phenylenediamines Quinones |
| url | https://pubmed.ncbi.nlm.nih.gov/41780266/ |