Tag: chemistry

The air pollution by $SO _2$ can cause Corneal haze, breathing difficulty, airways inflammation, eye irritation, psychic alterations, pulmonary oedema, heart failure and circulatory collapse in human beings.  

Fuel additives such as calcium additives and magnesium carboxylate may be used in marine engines to lower the emission of sulfur dioxide gases into the atmosphere.

Sulphur dioxide is an air pollutant that has many health effects on humans. It causes asthma, bronchitis, emphysema in humans. It is particularly poisonous to trees causing Chlorosis and dwarfing.

Sulphur dioxide is produced by both man-made and natural processes. Natural processes include volcanoes, forest fires and decaying plant matter.

Sulfur dioxide is a major air pollutant and has significant impacts upon human health. In addition, the concentration of sulfur dioxide in the atmosphere can influence the habitat suitability for plant communities, as well as animal life. Sulfur can also be removed from fuels before burning, preventing formation of $SO _2$ when the fuel is burnt. The Claus process is used in refineries to produce sulfur as a byproduct. 

Oxides of sulphur are produced when sulphur containing fossil fuels are burnt. Sulphur dioxide is a poisonous gas harmful to both animals and plants. It is poisonous to trees, causing dwarfing and Chlorosis.

Sulphur dioxide can be formed naturally by volcanoes, forest fires etc or by anthropogenic (man-made) sources like power stations, home heating and metal manufacturing.

Since $SO _2$ is acidic in nature, $SO _2$ sinks are oxidation by $OH^-$ and deposition on wet surfaces. So, the ocean i.e. water is the best sink for $SO _2$.

Sulphurous acid is produced by dissolving sulphur dioxide in water. It is a weak dibasic acid known in the form of its salts e.g. sodium sulphite. It is unstable has has never been isolated as a pure compound.
$2NaOH+{ SO } _{ 2 }\rightarrow { { Na } _{ 2 }SO } _{ 3 }+{ H } _{ 2 }O$