Why is the ozone layer badly damaged?

Question

Why is the ozone layer badly damaged?

Answer 1

Because vehicles,Factories etc...emit various gases as CFC(Chloro fluro Carbons),Methane and some other harmful gases which react with ozone(its a gas which forms a layer called Ozone layer) and decompose it to oxygen thus destroying the layer...........

Answer 2

It is damaged primarily by Chlorofluorocarbons (such as freon) released into the atmosphere.

Other chemicals that damage the ozone layer include methyl bromide (used as a pesticide), halons (used in fire extinguishers), and methyl chloroform (used ...

Perhaps the most evident and destructive molecule of this description is chloroflourocarbon (CFC).  CFCs were first used to clean electronic circuit boards, and as time progressed, were used in aerosols and coolants, such as refrigerators and air conditioners.  When CFCs from these products are released into the atmosphere, the destruction begins.  As CFCs are emitted, the molecules float toward the ozone rich stratosphere.  Then, when UV radiation contacts the CFC molecule, this causes one chlorine atom to liberate.  This free chlorine then reacts with an ozone (O3) molecule to form chlorine monoxide (ClO) and a single oxygen molecule (O2).  This reaction can be illustrated by the following chemical equation:  Cl + O3 --> O2 + ClO.  Then, a single oxygen atom reacts with a chlorine monoxide molecule, causing the formation of an oxygen molecule (O2) and a single chlorine atom (O + ClO --> Cl + O2).  This threatening chlorine atom then continues the cycle and results in further destruction of the ozone layer (See Figure 4).  Measures have been taken to reduce the amount of CFC emission, but since CFCs have a life span of 20-100 years, previously emitted CFCs will do damage for years to come.

Natural sources also contribute to the depletion of the ozone layer, but not nearly as much as human activity.  Natural sources can be blamed for approximately 15 to 20 percent of ozone damage.  A common natural source of ozone damage is naturally occurring chlorine.  Naturally occurring chlorine, like the chlorine released from the reaction between a CFC molecule and UV radiation, also has detrimental effects and poses danger to the earth.

Finally, volcanic eruptions are a small contributor to ozone damage, accounting for one to five percent.  During large volcanic eruptions, chlorine, as a component of hydrochloric acid (HCl), is released directly into the stratosphere, along with sulfur dioxide.  In this case, sulfur dioxide is more harmful than chlorine because it is converted into sulfuric acid aerosols.  These aerosols accelerate damaging chemical reactions, which cause chlorine to destroy ozone.

Answer 3

because of the use of cfcs in large amounts

Answer 4

because of strong fumes lol