| sulfur |
Sulfur (or Sulphur; see spelling below) is the chemical element in the periodic table that has the symbol S and atomic number 16. It is an abundant, tasteless, odorless, multivalent non-metal. Sulfur, in its native form, is a yellow crystaline solid. In nature, it can be found as the pure element or as sulfide and sulfate minerals. It is an essential element for life and is found in several amino acids. ...
출처: en.wikipedia.org/wiki/Sulfur
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| sulfurous |
Deadly mixture of smoke and fog peaking in the midtwentieth century in large cities. A smog episode in London in 1952 led to 4000 deaths. The sulfuric acid produced from the fossil fuel sources in use at that time led to a choking mixture when incorporated into fog droplets. It is associated with low temperatures, low actinic flux, and high humidity. This form of air pollution was largely eliminated by legislation in the 1950s that led to reduced emissions of SO 2 and smoke. ...
출처: amsglossary.allenpress.com/glossary/browse
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| sulfur dioxide |
Acidic gas, formula SO 2 , formed in the combustion of many fuels and in the oxidation of naturally occurring sulfur gases. It is the primary sulfur gas emitted from combustion sources and is a precursor to sulfuric acid, which is a major constituent of acid rain.
출처: amsglossary.allenpress.com/glossary/browse
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| sulfuric acid |
Strong acid, formula H 2 SO 4 , formed as the end product in the oxidation of most sulfur compounds. Sulfuric acid is a major constituent of acid rain associated with fossil fuel combustion. As a consequence of its low volatility, it can lead to particle formation, and is a major constituent of cloud condensation nuclei and the background aerosol, including the stratospheric sulfate layer.
출처: amsglossary.allenpress.com/glossary/browse
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| sulfur dioxide |
A pungent, colorless, gaseous pollutant formed primarily by the combustion of fossil fuels.
출처: www.nsc.org/ehc/glossar2.htm
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