Emissions of chlorinated fluorocarbons, or CFCs, once found in aerosol sprays, and other ozone-depleting substances like the soil fumigant methyl bromide produced the first ozone hole over the Antarctic, which was identified in 1985.
The first ozone generator was invented in Germany in 1857 by Werner von Siemens who founded a rather large company that bears his name.
In fact, a slight increase in HyPer5 signal was noted after the third ozone exposure (15 minute time interval, see below).
The appearance of a second ozone hole at the other end of the earth "is a reminder that human activities can have a very significant impact and often unintended consequences on the atmosphere," she added.
Second, Ozone layer depletion will slow down.
The rationale behind the first tropospheric ozone retrieval algorithms was to isolate the stratospheric ozone column by means of limb measurements [11, 12] or total ozone retrievals over high-altitude clouds [13, 14], and then subtract it from a co-located or neighboring measurement of the total ozone column.
Page A4 OZONE HOLE OVER ARCTIC Intense cold in the upper atmosphere of the Arctic last winter activated ozone-depleting chemicals and produced the first significant ozone hole ever recorded over the high northern regions, scientists reported in the journal Nature.
Intense cold in the upper atmosphere of the Arctic last winter activated ozone-depleting chemicals and produced the first significant ozone hole ever recorded over the high northern regions, scientists reported on Monday in the journal Nature.
See articleA large hole in the ozone layer was reported to have opened over the Arctic this spring, the first time ozone loss in the northern hemisphere has matched that in the southern.
The first high ozone of the year was measured near Dartmoor on 26 May and at Sevenoaks, Kent on the 28th.
