Hexabromocyclododecane: concentrations and isomer profiles from sources to environmental sinks

Investor logo
Investor logo

Warning

This publication doesn't include Faculty of Sports Studies. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

OKONSKI Krzysztof MELYMUK Lisa Emily KOHOUTEK Jiří KLÁNOVÁ Jana

Year of publication 2018
Type Article in Periodical
Magazine / Source Environmental Science and Pollution Research
MU Faculty or unit

Faculty of Science

Citation
Web https://link.springer.com/article/10.1007%2Fs11356-018-3381-4
Doi http://dx.doi.org/10.1007/s11356-018-3381-4
Keywords HBCD; Flame retardants; Atmospheric transport; Sources; Isomer profiles; Consumer products
Description 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 1600ng/m(3) in the industrial area to <10pg/m(3) in urban and background air. Isomer profiles also showed a distinct gradient in air, from 95% -HBCD in industrial air to 40% -HBCD in background air, suggesting the influence of differential atmospheric transport and phototransformation of - to -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.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info