| sulfur content | 1.38 | Sulfur content must be reduced in gasoline and diesel fuel. | ||
| sulfur emission | 1.05 | In the process, it is reducing sulfur emissions. | ||
| sulfur compound | 0.92 | It contains a unique sulfur compound, allyl methyl sulfide. | ||
| sulfur hexafluoride | 0.33 | The EPA also has not run tests for sulfuric acid and sulfur hexafluoride. | ||
| sulfur smell | 0.33 | There are no sulfur smells, no plumes of steam, no bubbling cauldrons of molten rock. | ||
| sulfur gas | 0.26 | Utilities use lime to remove sulfur gas from emissions. |