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First report on hydroxylated and methoxylated polybrominated diphenyl ethers in terrestrial environment from the Arctic and Antarctica
- Source :
- Journal of Hazardous Materials. 424:127644
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- Terrestrial plants, which account for the world’s largest biomass and constitute the basis of most food webs, take up, transform, and accumulate organic chemical contaminants from the ambient environment. In this study, we determined the concentrations and congener profiles of polybrominated diphenyl ethers (PBDEs) and hydroxylated and methoxylated polybrominated diphenyl ethers (OH-PBDEs and MeO-PBDEs) in surface soil and vegetation samples collected from the Arctic (Svalbard) and Antarctica (King George Island) during the Chinese Scientific Research Expeditions. The concentrations of total PBDEs (∑PBDEs) in soil and vegetation samples collected from the Arctic (5.6–270 pg/g dry weight) were higher than those from Antarctica (2.3–33 pg/g dw), whereas the concentrations of ∑MeO-PBDEs and ∑OH-PBDEs were lower in Arctic terrestrial samples (n.d.–0.75 and 0.0008–1.1 ng/g dw, respectively) than in samples from Antarctica (0.007–4.0 and 0.034–25 ng/g dw, respectively). Long-range atmospheric transport and human activities were potential sources of PBDEs in polar regions, whereas the dominance of ortho-substituted MeO-PBDE and OH-PBDE congeners in terrestrial matrices indicated the importance of natural sources. To the best of our knowledge, this study represents the first report on the levels and behaviors of MeO-PBDEs and OH-PBDEs in terrestrial environment of polar regions.
- Subjects :
- Food Chain
Environmental Engineering
ved/biology
Health, Toxicology and Mutagenesis
ved/biology.organism_classification_rank.species
Antarctic Regions
Vegetation
Pollution
Soil
Polybrominated diphenyl ethers
Congener
Arctic
Dry weight
Environmental chemistry
Terrestrial plant
Halogenated Diphenyl Ethers
Humans
Environmental Chemistry
Dominance (ecology)
Environmental science
Terrestrial ecosystem
Waste Management and Disposal
Environmental Monitoring
Subjects
Details
- ISSN :
- 03043894
- Volume :
- 424
- Database :
- OpenAIRE
- Journal :
- Journal of Hazardous Materials
- Accession number :
- edsair.doi.dedup.....b765fe3611d90d359c97fde130bcbfd5