sulfitSO2

SulfitSO2, also known as sulfur dioxide, is a chemical compound with the formula SO2. It is a colorless gas with a pungent, irritating odor. Sulfur dioxide is produced naturally by volcanic activity and is present in the atmosphere as a trace gas. It is also a byproduct of the burning of fossil fuels, such as coal and oil, and is a major component of acid rain.

Sulfur dioxide is a strong oxidizing agent and can react with other compounds to form sulfites and sulfates. It is used in various industrial processes, including the production of sulfuric acid, which is a key component in the manufacture of fertilizers, detergents, and other chemicals. Sulfur dioxide is also used as a preservative in the food industry and as a bleaching agent in the paper industry.

Exposure to sulfur dioxide can cause respiratory irritation and, in severe cases, can lead to asthma attacks and other respiratory problems. It is also a known carcinogen, and long-term exposure can increase the risk of lung cancer. To mitigate these health risks, regulations have been put in place to limit sulfur dioxide emissions from industrial sources.