OZONE HOLE


Meaning of OZONE HOLE in English

A thinning break in the stratospheric ozone layer. Designation of amount of such depletion as an "ozone hole" is made when the detected amount of depletion exceeds fifty percent. Seasonal ozone holes have been observed over both the Antarctic and Arctic regions, part of Canada, and the extreme northeastern United States.

Environmental engineering English vocabulary.      Английский словарь экологического инжиниринга.