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单词 global distillation
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global distillation
global distillation n. a natural process driven by atmospheric circulation, in which certain volatile, mostly man-made substances vaporize in warmer climates and condense in cooler air (such as at higher altitudes and latitudes, or over the oceans), causing the accumulation of specific pollutants in the latter.
ΚΠ
1975 E. D. Goldberg in Proc. Royal Soc. B. 189 286 The transfer from land [of vaporized DDT] with a subsequent rainout to the global ocean following transport in the wind system thus becomes a ‘global distillation process’.
1993 Independent (Nexis) 24 Jan. 55 Scientists fear the chemicals, used as pesticides and in industry, are evaporating from the soils, waste dumps and polluted lakes of Europe and North America, and condensing on to the snow and ice of the Arctic. Toronto University's Frank Wania calls the process ‘global distillation’.
2000 Reuters Features Digest (Electronic ed.) 9 Apr. The sub-zero temperatures around the Alpine peaks caused DDT, which evaporates over Africa or India, to humidify and fall as precipitation in a process known as ‘global distillation’.
extracted from globaladj.
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