Hexabromocyclododecane: concentrations and isomer profiles from sources to environmental sinks
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články
Grantová podpora
LO1214
Czech Ministry of Education, Youth and Sports
LM2015051
RECETOX Research Infrastructure
CZ.02.1.01/0.0/0.0/16_013/0001761
RECETOX Research Infrastructure
PubMed
30377961
DOI
10.1007/s11356-018-3381-4
PII: 10.1007/s11356-018-3381-4
Knihovny.cz E-zdroje
- Klíčová slova
- Atmospheric transport, Consumer products, Flame retardants, HBCD, Isomer profiles, Sources,
- MeSH
- bromované uhlovodíky analýza chemie MeSH
- isomerie MeSH
- látky znečišťující životní prostředí analýza chemie MeSH
- monitorování životního prostředí metody MeSH
- půda chemie MeSH
- retardanty hoření analýza MeSH
- spotřebitelská bezpečnost produktů MeSH
- vzduch analýza MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
- Názvy látek
- bromované uhlovodíky MeSH
- hexabromocyclododecane MeSH Prohlížeč
- látky znečišťující životní prostředí MeSH
- půda MeSH
- retardanty hoření MeSH
Concentrations and isomer compositions of hexabromocyclododecane (HBCD) were measured in six matrices in the Czech Republic (HBCD technical mixture; consumer products; indoor and outdoor air at industrial, urban and background locations; soils; and sediments) to provide insight into changes in concentrations and isomer profiles between environmental sources and environmental sinks. A distinct gradient of air concentrations was observed, from 1600 ng/m3 in the industrial area to < 10 pg/m3 in urban and background air. Isomer profiles also showed a distinct gradient in air, from 95% γ-HBCD in industrial air to 40% γ-HBCD in background air, suggesting the influence of differential atmospheric transport and phototransformation of γ- to α-HBCD. Concentrations and isomer compositions in consumer products were highly variable and indicated differences between products with intentional addition of HBCD as a flame retardant versus those with HBCD as an impurity, e.g., from recycled plastic. Understanding the isomer-specific environmental distributions and processes remains important for risk assessment and toxicology, considering the continued use of HBCD and the isomer-specific differences in uptake, metabolism, and toxicity, and further, demonstrates the utility of isomer profiles to better understand environmental processes of HBCDs.
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