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Presentation

Sulfur dioxide

The dioxide of sulphur (or sulphur dioxide) is a chemical compound made up of two atoms of oxygen and a sulphur atom; its crude formula is: SO2. The SO2 is a gas dense, colourless and toxic, its inhalation is highly irritating.

While combining with water and atmospheric oxygen, the sulphur dioxide is with nitrogen dioxide one of the principal causes of the acid rains.

NOx

Nox is an abbreviation used in the field of the pollution and which gathers two molecules the NO and the NO2, respectively monoxide and dioxide of nitrogen. In the atmosphere, the NO and the NO2 produced by the fossil combustible combustion can join water and produce nitric acid HNO3 responsible for the acid rains.

References

  • Grande paroisse (2004)
  • Père Lachaise, services funeraires de la ville de Paris (2005 et 2006)