Four of the most widespread environmental toxins--lead, trihalomethanes (found in drinking water), ionizing radiation from indoor radon gas, and tobacco smoke--can cause serious damage to health even at very low levels, say researchers in the international medical journal PLoS Medicine.
What this means, say the researchers Donald Wigle of the University of Ottawa and Bruce Lanphear of Cincinnati Children’s Hospital Medical Center, is that there are simply no safe levels of exposure to these toxins and they must be "virtually eliminated to protect human health."
Children can suffer brain damage from being exposed to very low levels of lead, they say. Although the US Centers for Disease Control and Prevention does not recommend public health or medical action unless the blood lead level of children exceeds 0.48 micromoles/liter, several longitudinal studies of children found inverse relationships between IQ and blood lead levels over a range extending below 0.48 micromoles/liter. These studies found no evidence of a "safe" threshold.
World first: Massive thrombosis removed during early pregnancy
20.07.2017 | Universitätsspital Bern
Therapy of preterm birth in sight?
19.07.2017 | Universitätsspital Bern
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy