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The Missing Reactions
there was a problem with the Chapman theory in 1960, it was realised that the loss of ozone given by reaction (4) was too slow. could not remove enough ozone to give the values seen in the real atmosphere.The other reactions thay had was faster reactions that were controlling the ozone concentations in the stratosphere. -
Ozone begin
the lower stratosphere over Antarctica was first noticed in the 1970s by research group from the British Antarctic Survey (BAS) who were monitoring the atmosphere above Antarctica -
two predictor from U,s
In the year of 1974 two United States chemists though about a class called chlorofluorocarbons (CFCs) . it's used in aerosol spray cans, it would seriously damage the ozone layer. -
British scientists produced that first ,Antarctic atmospheric data going back to 1957 alarming decline in ozone over Antarctica each spring and it effectively put a hole in the ozone layer
British scientists produced that first ,Antarctic atmospheric data going back to 1957 alarming decline in ozone over Antarctica each spring and it effectively put a hole in the ozone layer -
Folklore has it the first measurement taken in 1985 levels in the stratosphere. scientists thought their instruments were faulty until they confirmed the earlier measurements hat the ozone depletion observed was accepted as genuine
Folklore has it the first measurement taken in 1985 levels in the stratosphere. scientists thought their instruments were faulty until they confirmed the earlier measurements hat the ozone depletion observed was accepted as genuine -
The first global agreement to restrict CFCs came with the signing of the Montreal Protocol in 1987. ultimately aiming to reduce them by half by the year 2000.
The first global agreement to restrict CFCs came with the signing of the Montreal Protocol in 1987. ultimately aiming to reduce them by half by the year 2000. -
In the northern polar regions ozone level in early 1990s measured ten percent lower then those who estimated in late 1970s
In the northern polar regions ozone level in early 1990s measured ten percent lower then those who estimated in late 1970s
