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!
Cholesterol-lowering drugs may fight infectious disease
22.08.2017 | Duke University
Once invincible superbug squashed by 'superteam' of antibiotics
22.08.2017 | University at Buffalo
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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