However, even slight changes in the meteorology of the region this month could affect the rate of depletion of ozone and how large an area the ozonehole might span.
即使这一地区在本月之内出现任何的天气变化都有可能影响臭氧含量的变动,并决定臭氧空洞将扩大多少。
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The left image shows high ozone concentrations over most of the planet, but very low concentrations—the ozonehole—over the Arctic.
作图显示了地球上大部分地区都被高浓度的臭氧所覆盖,但在北极上空却有一片极低值区——也就是臭氧洞。
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Butbecause the the CFC gasses that caused the ozonehole now been banned, scientists expect the damage to repair itself within the next 50-60years.