Recently, it was observed that India still has no national standards for sulphur dioxide (SO2) emissions from steel-producing facilities like sinter plants, mill zones, despite their being recognised as SO2 emission sources.
About Sulphur Dioxide:
It is a gaseous air pollutant composed of sulfur and oxygen. It forms when sulfur-containing fuel such as coal, petroleum oil, or diesel is burned.
Properties of Sulphur Dioxide:
It is a liquid when under pressure, and it dissolves in water very easily.
It has a pungent, irritating odor, familiar as the smell of a just-struck match.
Sources of Sulphur Dioxide Emissions:
Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting.
It is usually prepared industrially by the burning in air or oxygen of sulfur or such compounds of sulfur as iron pyrite or copper pyrite.
In nature, sulfur dioxide can be released to the air from volcanic eruptions.
The largest source of SO2 in the atmosphere is the burning of fossil fuels by power plants and other industrial facilities.
Applications: It is used to manufacture chemicals, in paper pulping, in metal and food processing.
Impacts of Sulphur Dioxide: It is harmful for human health, environment and climate.
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