Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
The Links Between CFCs And The Depletion Of Ozone In The Stratosphere, The Importance Of CFCs And The Search For Good Replacements.
Member rating: No Rating | Words: | Submitted: Tue Sep 23 2003
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
The Links Between CFCs And The Depletion Of Ozone In The Stratosphere, The Importance Of CFCs And The Search For Good Replacements There have been many methods to try and investigate the chemistry of the atmosphere. Some scientists use monitoring to find out what is present in the atmosphere and in what concentration. Many of the substances present have characteristic absoroptions in the infra-red and ultra-violet reigons of the spectrum. (1) Eg Ozone absorbss ultra-violet radiation with wavelengths below 360nm. (1) Ozone concentration has to be measured over a period of time, at different heights and lattitudes to make sure that any decreases are not from natural influences. This can be done from the ground, high-altitude planes and satellites. Laboratory measurements are used to determine how substances will behave in the stratosphere like how they are affected by solar radiation and the rates of reaction. The rate constants are very important...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 151,744 others
