sulfur oxide

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Related to Sulfur oxides: carbon monoxide, sulphur dioxide, Nitrogen oxides, SO2

sulfur oxide

[′səl·fər ′äk‚sīd]
(inorganic chemistry)
An oxide of sulfur, such as sulfur dioxide, SO2, and sulfur trioxide, SO3.
References in periodicals archive ?
Greenhouse gases, sulfur oxides and nitrogen oxides are added to the air when coal, oil and natural gas are burned to provide energy.
Researchers from the Department of Energy's Pacific Northwest National Laboratory (PNNL) revealed earlier this month during the 230th national meeting of the American Chemical Society in Washington, DC, that the mineral cryptomelane "holds promise to absorb the toxic sulfur oxides that can degrade the emission control systems on diesel vehicles."
The analyzer uses ultraviolet fluorescence (UVF) for detection and it can be operated in a total sulfur mode, analyzing sulfur oxides, hydrogen sulfide and all organic sulfur compounds.
Assuming current recycling rates, total emissions of nitrogen oxides (N[O.sub.x]) and sulfur oxides (S[O.sub.x]), which contribute to smog and acid rain, are about 0.9 kg and 1.4 kg per reader per year, respectively.
In a 1998 study of pregnant women in Sao Paulo, Brazil, scientists found that women exposed to high levels of nitrogen and sulfur oxides were 18 percent more likely to have their pregnancies end in stillbirths.
The company says it rids the vehicle of several harmful gases, including volatile organic components, nitrogen and sulfur oxides. It is expected on the market in 2003 or 2004.
The NPRI list of substances will be expanded in 2002 to include precursos of ground-level ozone and components of smog such as nitrogen oxides, volatile organic compounds, sulfur oxides, particulate matter and carbon monoxide.
Air emissions from the unit -- nitrogen oxides, sulfur oxides, carbon monoxide and volatile hydrocarbons -- measured less than 1 part per million by volume -- below clean air standards.
The process enables the fuel cells to cut nearly to zero emissions of carbon monoxide, nitrogen oxides and sulfur oxides -- gases harmful to humans.
Heavy metals are stuck to the surface of various micropores in several diameters for the purpose of absorbing nitrogen oxides, sulfur oxides and other chemicals.
Using Nevada as an example, the 200 megawatts of electricity produced by geothermal energy plants spares the air 1.7 million tons of carbon dioxide, 315 tons of nitrogen oxides, and 11,000 tons of sulfur oxides that would be produced by a coal-burning power plant of the same capacity each year.
Other nonattainment areas defined in this Title include carbon monoxide, particulate matter up to 10 microns, sulfur oxides, nitrogen dioxide, lead and others.