Ozone gas is heavy- why is it at the top of atmosphere?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

Short Answer: UV-C from the Sun is absorbed by the oxygen up high, and that allows ozone to be made up high. Ozone decays back to oxygen before it can fall very far... More Detail Ozone is not the heaviest gas, iodine heptafluoride (for example) is much heavier. Ozone is heavier than other gases commonly found in the atmosphere... Ozone is present in all layers of the atmosphere. It is concentrated in the stratosphere (which is not the "top of the atmosphere" there are more layers above it), because almost all the UV-C from the Sun is stopped there by oxygen and nitrogen, where the atmosphere's density starts really going up. Oxygen molecules broken into atoms, can yield the production of some ozone, monatomic oxygen is very short lived, so ozone is formed very quickly or not at all. As you move lower in the atmosphere, water vapor (and other contaminants) rapidly destroy ozone, so this allows ozone concentrations to decrease to near zero at Earth's surface. Oxygen molecules are broken apart by 215nm or shorter UV light (UV-C). So are nitrogen, and other atmospheric constituents. So beyond a certain depth into the atmosphere, there is insufficient 215nm or shorter light to break oxygen which can then make ozone. Then it takes a very long time (months) for gasses to diffuse in quantity large distances vertically, and ozone gas does degrade with time... so it appears this heavy gas hovers high above us. When in fact it is created, and disppears before it can fall very far.
27 people found this useful

Why is ozone top of the atmosphere?

Ozone is formed at the top because UV radaitions have convertedoxygen into ozone over there. Ozone formation is a chemicalprocess. When oxygen is treated with UV radiations ox

What if there were no ozone in your atmosphere?

If there was no ozone the harmful ultraviolet radiations of the sun would reach the earth easily and would cause a no. of harmful diseases and problems to the human race. Thes

What gas in the atmosphere is the source of ozone?

The short Answer is di-atomic Oxygen or O2. Ground-level Ozone What is ozone? O 3 is a colorless, odorless gas at ambient concentrations and is a major compone
In Air Pollution

Which atmosphere has ozone?

Ozone is concentrated at 20-40 km above earth with highestconcentration 6-8 parts per million. It is present in thestratosphere of the earth's atmosphere.
In Ozone Layer

Why is ozone an important gas to monitor the atmosphere?

Ozone is O 3 , and is necessary to maintain in the atmosphere because it limits the UV rays that can enter the earth's atmosphere. If these are not limited, humans and other a
In Ozone Layer

What gas in the atmosphere is used to form ozone?

Oxygen . Virtually all of the ozone in the "Ozone Layer," which is in thestratosphere and not the troposphere where we live, is formed fromoxygen atoms and oxygen molecules.
In Ozone Layer

What would happen if there is no ozone gas in the atmosphere?

The layer of ozone (O 3 ) in the atmosphere absorbs UV-Csolar radiation with wavelengths above around 200 nm as well asmost UV-B radiation. UV-C radiation is very harmful to l