ArticleNature communications2023
Organic matter degradation causes enrichment of organic pollutants in hadal sediments.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- Article
- The Hidden Persistence of Deep-Sea Pollution.Environmental science & technology · 2026Article
- Superwettable-Membrane-Assisted Extraction and Separation as a General Method for Removal of Organic Pollutants From Water.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Extensive halogenated organic compound reservoirs and active microbial dehalogenation in Mariana Trench sediments.The ISME journal · 2025Article
- Adaptation of Archaeal Communities to Summer Hypoxia in the Sediment of Bohai Sea.Ecology and evolution · 2025Article
- Occurrence of polybrominated diphenyl ethers and benzotriazole UV stabilizers in the hadal amphipodiScience · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Burial of persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) in deep-sea sediments contributes to 60% of their historical emissions. Yet, empirical data on their occurrence in the deep-ocean is scarce. Estimates of the deep-ocean POP sink are therefore uncertain. Hadal trenches, representing the deepest part of the ocean, are hotspots for organic carbon burial and decomposition. POPs favorably partition to organic carbon, making trenches likely significant sinks for contaminants. Here we show that PCBs occur in both hadal (7720-8085 m) and non-hadal (2560-4050 m) sediment in the Atacama Trench. PCB concentrations normalized to sediment dry weight were similar across sites while those normalized to sediment organic carbon increased exponentially as the inert organic carbon fraction of the sediment increased in degraded hadal sediments. We suggest that the unique deposition dynamics and elevated turnover of organic carbon in hadal trenches increase POP concentrations in the deepest places on Earth.
Identifiers
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Registered trials
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