Lisa
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Thu Oct-13-05 05:37 PM
Response to Reply #3 |
14. oddly appropriate, isn't it! |
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100 Dobson Units (what they use to measure ozone) would translate to 1 mm of pure ozone, at standard temperature and pressure (1 atm, 0 degrees C).
So basically, the stratospheric ozone layer is 3-5 mm thick at the BEST of times (though it's actually spread several miles deep in the stratosphere). And seeing it dropping below 1 mm is a sign that things are definitely out of whack.
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