Vitamin B12 could trigger outbreaks of acne, scientists have today warned. The essential nutrient, found in meat, fish, eggs and dairy products, as well as in Marmite, alters the activity skin bacteria. This leads to unsightly spots and pimples in susceptible people, a new study found.
Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. Sulfur dioxide dissolves easily in water to form sulfuric acid. Sulfuric acid is a major component of acid rain. Acid rain can damage forests and crops, change the acidity of soils, and make lakes and streams acidic and unsuitable for fish.
Sulfur oxides are created by: the combustion of sulfur containing fuels the oxidation of sulfides decomposition volcanoes the processing of sulfdic ores They are released to the atmosphere by point sources from these origins (stacks, vents etc) or as fugitive emissions from small leaks and losses. Sulfur oxides are created by: the combustion of sulfur containing fuels. the oxidation of sulfides. decomposition. volcanoes. the processing of sulfdic ores.