09.01.2023, 14:30 | Traveling, changing locations, visiting relatives – all healthy!
A study from Great Britain suggests that people who occasionally go outside their daily radius of 25 kilometers feel healthier and do something for their well-being. Visiting friends and family has an additional positive effect. However, mobility is considered a privilege and depends, among other things, on factors such as infrastructure expansion and personal financial margin. The planned 49 euro ticket for Germany could, assuming an expansion of local transport, also have a health promoting effect in this respect.
09.01.2023, 12:40 | The first rocket launched by Britain will take off into space today
A converted Boeing 747 (“Jumbo”) from the space company Virgin Orbit called the Cosmic Girl is used as a rocket carrier. It is scheduled to take off from Spaceport Cornwall on Monday and then launch a Launcher One rocket into orbit. Among other things, the cargo flight is to carry several satellites into space. It is the first rocket launch from Britain and the first commercial takeoff in Western Europe. The first successful launch of a Launcher One took place in January 2021, like all launches since then, from the Mojave desert in California.
09.01.2023, 11:30 | Microplastics: car tire abrasion detected in lettuce
Some lettuces have their own dressing: as researchers at the University of Vienna have shown, chemicals from tire abrasion can find their way onto crops. The researchers write that around one kilogram of tire particles in the form of microplastics are carried through the air or washed into the water cycle per inhabitant each year, which is equivalent to almost six million tons a year worldwide.
The chemical compounds that are necessary for the quality and durability of automobile tires are of particular concern in this context. The researchers write that both the starting materials and their conversion products can be shown to be toxic. In a laboratory experiment, they investigated the extent to which lettuce plants can absorb these chemicals from the soil. In particular, the transformation product was 6PPD quinone surprising, that it has been linked to massive salmon die-offs in the past.
The researchers were able to identify the uptake and accumulation by the lettuce plants of all the chemicals examined. Furthermore, the products metabolized by plants are not yet known and their health risk cannot be assessed. Chemicals are also absorbed when plant roots are not directly exposed to dissolved substances, but only indirectly to tire granules.
Car tire abrasion has long been considered a significant environmental burden and one of the main causes of microplastics, even if the actual extent is not yet sufficiently known. Abrasion affects both conventional combustion engines and electric vehicles. The problem is particularly acute in the case of the popular urban all-terrain vehicles (SUVs), which have also been criticized for their poor environmental balance. It can be reduced by early driving with less and smoother braking and acceleration processes, moderate speeds and careful tire maintenance.
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