Why is sulfur dioxide considered injurious to the health?

The major health concerns associated with exposure to sulphur dioxide include breathing difficulties, respiratory illness, changes in pulmonary defenses, and aggravation of existing cardiovascular disease. SO2 can react with other compounds in the atmosphere to form small particles. read more

(Fact Sheet Sulfur Dioxide: OSH Answers Canadian Centre for Occupational Health and Safety ) Main Routes of Exposure: Inhalation. Inhalation: VERY TOXIC, can cause death. Can cause severe irritation of the nose and throat. read more

Sulfur dioxide is one type of sulfite, a preservative whose name might be more familiar. Even a small amount of sulfite can wreak health havoc if you're sensitive to it. If you have asthma, sulfite sensitivity or sulfite allergy, eating dried fruits might cause serious health problems, including breathing problems, life-threatening allergy-like symptoms or, in rare cases, death. read more

Sulfur dioxide is a gas. It is invisible and has a nasty, sharp smell. It reacts easily with other substances to form harmful compounds, such as sulfuric acid, sulfurous acid and sulfate particles. read more