Household dust is the main route of exposure to flame retardants for people — from toddlers to adults — followed by eating animal and dairy products, according to a report in the July 15 issue of the American Chemical Society’s journal Environmental Science & Technology. ACS is the world’s largest scientific society. Until this study, which is based on a computer model developed by Canadian researchers, scientists have been unsure exactly how people are being exposed.
PBDEs (polybrominated diphenyl ethers) — used widely as flame-retardant additives in electronics and furniture — have been detected in humans across the globe, with especially high levels in North America. Little is known about the specific toxic effects of brominated flame retardants, but some researchers say that the increasing presence of the compounds in human tissue is cause for concern because they have been associated with cancer and other health problems in animal studies.
“Our work is good news and bad news,” says the study’s lead author, Miriam Diamond, Ph.D., an environmental chemist at the University of Toronto. “Good news because we’ve identified the main route of exposure to PBDEs — house dust; bad news because we need more action to remove PBDEs from household products and replace them with alternatives that are effective in reducing hazards related to fires and that do not accumulate in the environment.”
Michael Bernstein | EurekAlert!
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22.03.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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22.03.2017 | Materials Sciences