Nature keeps giving something or the other every moment, it is true that we should not interfere in nature’s work or its cycle in any way, but whenever humans have destroyed nature, then nature has created a great orgy. . Nature has placed us humans in the middle of a protective shield, but due to pollution and human actions, the ozone layer has been destroyed enough. People may not know much about the ozone layer, but it acts as a protective shield for the earth and the environment, which protects it from the dangerous ultraviolet (ultraviolet or UVA and UVB) rays of the sun.
Also Read:-ozone layer in hindi
What is ozone?
Ozone is a naturally occurring type of molecule. Three oxygen atoms combine to form an ozone molecule. Its chemical formula is O3.
Ozone is a natural chemical compound made from three oxygen molecules. It is a chemical formula O3. The term “ozone” taken by the Greek word ozein, which is a reference to “to smell”. The strong smell of ozone permits scientists to detect it even in small quantities.
The hole in the ozone layer was first detected in 1973 by American scientists over Antarctica. In this, Joseph Foreman observed a 50 percent reduction in the ozone layer in 1985.
Around 90% of the oxygen in the atmosphere is found in the 15-30 kilometers above the surface of the earth (stratospheric Ozone). It also occurs at low levels at ground level which is a major ingredient in smog over major cities (tropospheric Ozone).
What is the ozone layer?
The sunlight that reaches Earth is comprised of UVA and B (UVA and UVB) radiations. These rays of ultraviolet are the most significant reason for the damage to skin due to the sun. UVA and UVB Rays impact the skin’s sensitivity to sun’s rays in various ways.
The Height Of The Ozone Lyer Above The Earth’s Surface
It is situated in the lower regions of the stratosphere, which ranges from 10-km to 50 km above Earth’s surface. However, its thickness fluctuates according to season and geographically.
Who is invented the ozone layer
Ozone layers were first discovered around 1913, by French scientists Fabry Charles as well as Henri Busson. Before that discovery, when scientists looked at an image of the spectrum emanating from the Sun and observed that there were dark regions in the spectrum and that no radiation with a wavelength less than 310nm was emanating directly from to the Sun toward the Earth. Researchers concluded that there is an element that absorbs the required ultraviolet rays which is why a black area is created within the spectrum. However, there is no visible radiation in the ultraviolet
What are the factors that affect the Ozone layer?
The data from the atmosphere shows that ozone depleting chemicals destroy ozone in the stratosphere, and are thinning the ozone layer of the earth. Ozone depleting substances are chemicals that include chlorofluorocarbons (CFCs), halons, carbon tetrachloride (CCl4), methyl chloroform (CH3CCl3), hydrobromofluorocarbons (HBFCs), hydrochlorofluorocarbons (HCFCs), methyl bromide (CH3Br) and bromochloromethane (CH2BrCl). They strip the layer of ozone by releasing bromine and chloride atoms to the stratosphere. They destroy Ozone molecules. They, along with other depleting ozone substances also contribute, in different degrees to the global warming.
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ozone element
The spectrum of light that was not seen from the Sun is completely compatible with the element ozone that led researchers to conclude that ozone is an element found in the Earth’s atmosphere, which absorbs ultraviolet light. . The properties of the ozone were studied thoroughly in the laboratory of British meteorologist GMB Dobson. He designed an easy spectrophotometer to detect stratospheric ozone at the surface.
Between 1928 between 1928 and the year 1958, Dobson created a system of ozone monitoring stations across the globe, and it continues to function until today (2008). The convenient device to measure the amount oxygen is known as the Dobson unit, in honor of Dobson.
What is ultraviolet rays?
Sunlight reaching Earth consists of ultraviolet A and ultraviolet B (UVA and UVB) rays. These ultraviolet rays are the main cause of damage to the skin from the sun. UVA and UVB rays affect the sensitivity of the skin to sun exposure in different ways.
The sunlight that reaches Earth is comprised of UVA and B (UVA and UVB) radiations. These rays of ultraviolet are the most significant reason for the damage to skin due to the sun. UVA and UVB Rays impact the skin’s sensitivity to sun’s rays in various ways.
UVA:
- It is possible to pass through windows.
- It is not affected by an elevation change or the weather.
- It is present throughout the day and all year long.
- Penetrates deep into skin layers.
- 20 times more plentiful than UVB radiations.
- Causes long-term skin damage.
- UVB:
- The glass in windows is not able to be passed through.
- Sunburn is a cause.
- Causes of tanning.
- Aids in the production of vitamin D.
- It is more invigorating:
- In the midday.
- In summertime.
- In high altitudes and near the Equator.
- It can lead to skin cancer and cataracts
- Protect your skin
- Make sure your skin is protected from excessive sun exposure while you are outdoors.
- Find shade between 11 a.m. until 3 p.m.
- Dress up in broad-brimmed hats and wear loosely-fitting, light-coloured, well-woven clothing.
- Wear sunglasses which block 99 to 100 percent of ultraviolet radiation.
- Apply broad-spectrum lip balms and sunscreen to any skin that is exposed even if it’s cloudy. Apply SPF 30 or more. Apply sunscreen every two hours or after swimming or playing outside.
Losses caused by the breakdown of the ozone layer?
The loss of the ozone layer uncovered?
In 1974 chemists Mario Molina and Frank Sherwood Rowland discovered a connection with CFCs and ozone depletion within the stratosphere. In 1985 geophysicist Joe Farman, along with meteorologists Brian G. Gardiner and John Shanklin reported findings of unusually low levels of ozone over the Antarctic and galvanized the world’s actions.
Ozone phenomenon?
Prolonged exposure to UVB radiation is associated with cataracts, skin cancer, genetic damage, and immune system dysfunction in living organisms, as well as decreased productivity in crops for agriculture and the food chain.
Frequently asked questions about ozone layer
Where was the ozone hole first observed?
Where was the ozone hole first observed?
When was the ozone hole detected over Antarctica?
How did the hole in the ozone layer happen?
What is meant by ozone hole?
Who is responsible for ozone layer depletion?
Why do ozone holes form over Antarctica?
Which layer of the atmosphere is associated with ozone?
Ozone layer is being rejoiced because?