Tokyo: Some groups team of Japanese scientists for the first time find the Arctic ozone depletion reached a high level approaching the size of the ozone hole over Antarctica. The findings are scheduled to be published in the online version of the British science magazine Nature, on Monday (3 / 10).
The researchers Japan's National Institute for Environmental Studies and researchers from eight other countries have learned about the density of ozone using satellite and balloon observations. They deem the ozone layer depletion occurs very rapidly between March and April this year. Depletion also affects about 40 percent of the Arctic ozone layer with a length of 3,000 km and 1,000 km wide.
The researchers claim it to be the first study to confirm the damage Earth's protective ozone over the Arctic was almost equivalent to the investigators found depletion over Antarctica.
Ozone depletion is believed to be caused by chlorofluorocarbon gases, which become subject to international law. The research team said, the depletion was also supported by the Arctic sky temperature lower than normal temperatures during the spring of this year.
Researcher Hideaki Nakajima of Japan said the ozone layer is going to filter out the harmful ultraviolet rays, and this depletion has adverse effects on the environment in Scandinavia and Russia, if it happens repeatedly it will cause a more serious impact. Nakajima said that closer monitoring over the North Pole would be necessary to find out more.