reason to be particularly low temperatures in a high layer of air, the stratosphere, and a more stable polar vortex, informed the research centre Jülich on Thursday.
Therefore, the ozone concentration decreased over the past three months steadily, and spent the beginning of March now, a good 18 per cent lower than in the winters without any special effects of the weather. There is currently no danger due to the high UV-radiation was due to the still low sun level, however.
the measurement value will soon normalize
The ozone layer over the Arctic in the annual cycle is always around this time of year is particularly thin. You will recover, according to the jülich stratospheric researchers Jens-Uwe Grooss, and Rolf Müller, but soon again. “If the process is too hot for this ozone destroy the nightmare is over quickly,” said Müller. As soon as the temperatures rise in the next few days or weeks, will stop the ozone depletion and the readings returned to normal.
An even greater ozone depletion than currently it had been reported in the last decade, only in the Winter of 2015/16. Also at the time a cold period was the cause.
there was Still no recovery of CFCs
The production of ozone-depleting CFCs (chlorofluorocarbons) has Long since been banned. Nevertheless, it is yet seen in the Arctic, no clear Trend of recovery, said Müller. The service life of the CFC amounts to 50 to 100 years. In the long term, you can expect a recovery to – in roughly 50 years, if the production of said ozone not destroy increasing substances again, Muller.
ozone hole is slowly closing
over the Antarctic, the discovery of which had led in 1985 to the adoption of the Montreal Protocol and thus to the gradual banning of CFCs, seems to close slowly. In 2019, it was so small as for about 30 years. (SDA)
What is ozone?
Ground-level ozone acts as an irritant gas. Ozone is formed in the lower atmosphere by photochemical processes. Transport, industry as well as solvent-based products, oxides of nitrogen and volatile organic Compounds can produce. This radiation, ozone is formed when intense sunlight.
acts During ozone below harmful, it is in the stratosphere at a height of 10 to 50 kilometres useful and even essential to life. The ozone envelops the earth and protects us from the ultra violet radiation of the sun, the sunburn, skin cancer and damage to the eyes can cause. This ozone layer is partly damaged, one speaks of the hole in the Ozone layer.
ozone layer the ozone layer protects against HautkrebsJe thinner it is, the more ultraviolet radiation reaches the bottom of the earth. This can destroy delicate plants, which are at the top of the food chain. In humans, the increased ultra-violet radiation can cause skin cancer, eye damage and other diseases.