What is ozone | What is the ozone layer
What Is Ozone
Ozone ‘OZONE’ (O3) is a gas consisting of three atoms of oxygen which is found in very small amounts (0.02%) in the atmosphere. Its concentration is high at an altitude of 30-32 km from the sea-coast. It is a very toxic gas with a pungent odor. It is a dangerous contaminant above the ground surface, i.e. in the lower atmosphere.
Whereas the upper layer of the atmosphere in the form of the ozone layer, it protects life on Earth from the ultraviolet radiation of the sun, [What is ozone] where it is formed by the effect of ultraviolet rays on oxygen. Ozone is an allotrope of oxygen. It is present in sea air. A slow dry stream of oxygen is converted into ozone when passed through a silent electrical discharge.
What Is The Ozone Layer
Ozone is an atmospheric gas or a type of oxygen. One molecule of ozone is formed by the addition of three oxygen atoms. German scientist Christian Friedrich Schönbein discovered ozone gas in 1839.
It is light blue in color and has a strong odour. Due to this pungent special smell, its name is derived from the Greek word ‘ozin’, which means to smell. It is a highly volatile and reactive gas.
Ozone gas is found in the form of a very thin and transparent layer in the upper atmosphere i.e. stratosphere. 90 percent of all ozone in the atmosphere is found in the stratosphere. Ozone is rarely found in our atmosphere, there are less than ten ozone molecules in every million air molecules.
The tropospheric ozone, which is found in the lowest level of the atmosphere, is also called bad ozone. This ozone is the result of air pollution caused by man-made factors such as internal combustion engines, industrial emissions and power plants. These release nitrogen oxides (NOx) and volatile organic compounds (VOCs) by-products of the combined combustion of gasoline and coal.
These products chemically combine with oxygen under high temperature conditions to form ozone. High amounts of ozone are usually formed in the heat of the afternoon and evening and are dissipated during the cooler nights.
It is often an essential part of the ‘smog’ that lives in the news. Although ozone pollution is mainly found in urban and suburban areas. But it also spreads in rural areas due to prevailing winds and due to cars and trucks going to rural areas.
[What is ozone | What is the ozone layer]