Ozone layer
- Created by: fatima
- Created on: 06-05-13 12:54
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- OZONE
- BAD
- troposphere - lowest part of the earth's atmosphere
- air pollutant - harmful to respiratory system
- GOOD
- stratosphere- second layer of earth's atmosphere
- protects living organisms - prevents harmful ultraviolet light
- O3 - absorbs harmful UV radiation and converts it into heat
- UV -b (280-320)
- UV -c (200-280)
- very harmful - entirely absorbed by ozone
- breaks 02 molecule
- UV -a (320-400)
- no concern - less energy
- causes sunburn, genetic damage (most absorbed by ozone)
- O3 absorbs UV-b breaking it into 02 and 0
- UV -c (200-280)
- UV -b (280-320)
- FORMATION
- O2 absorb high energy radiation (<240 nm)
- Oxygen molecule react with oxygen atom,
- this process produces heat - absorbed by air molecules hence -STATOSPHERE IS THE WARMEST PART OF ATMOSPHERE
- mechanism
- O2 broken down into 2Os
- O reacts with O2 to form Ozone
- Ozone broken into O and O2 by UV -b
- O2 broken down into 2Os
- O reacts with O2 to form Ozone
- Ozone broken into O and O2 by UV -b
- Ozone broken into O and O2 by UV -b
- O reacts with O2 to form Ozone
- O2 broken down into 2Os
- Ozone broken into O and O2 by UV -b
- O reacts with O2 to form Ozone
- O2 broken down into 2Os
- BAD
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