Ozone hole is shrinking, a large hole over the Antarctic.
Ozone hole is shrinking, a large hole over the Antarctic.
TNew discovery
By: My space
By: My space
First Ozone depletion was noticed in 1970s and noticed that about 4% of ozone decreased.
Materials that causes ozone depletion those materials are known as Ozone Depleting Substances (ODS)
Once these substances reach the stratosphere they release atoms and breakdown ozone (O3) in to oxygen (O2) causes depletion or formation of ozone hole.
Formation of Ozone depletion
Ozone layer is O3 molecule, made up of three oxygen atoms. This layer is present in stratosphere, between troposhere and mesosphere. It acts as filter of our Earth.
What is Ozone?
About 70% of ozone layer reduce over Antarctica, first noticed in 1985. NASA states that ozone layer was weak in 1990s, it is now recovering and it will fully recover by 2070.
Effects of ozone depletion
Biological effects includes1. Basal and squamous cell carcinoma2. Malignant melanoma3. Increased in production of vitamin D4. Cataract5. Effects on animal6. Effects on crops
There is no hole there rather than there is ozone depletion over the Antarctic. It is also referred to as a “dramatic thinning” of ozone, shows in (August-October).
The ozone hole — it’s not really a hole, is it ?
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