What is Sulfur Dioxide?
Sulfur Dioxide, or SO2, is a toxic colorless gas with a sharp, pungent smell, similar to the smell from a newly struck-match. SO2 emissions are generally associated with the emission of other Sulfur Oxides, which can react with molecules in the air to produce particulate matter such as PM2.5 and PM10.
Sulfur dioxide can also react with oxygen in the air to form sulfuric acid, the principal component of acid rain. Sulfur Dioxide and other Sulfur Oxides can also react with other compounds in the atmosphere to form fine particles that lead to haze and reduced visibility; these particles can over time stain statues, monuments and buildings.
Where does Sulfur Dioxide come from?
Sulfur Dioxide is primarily produced by motor vehicle combustion as well as power generation and industrial combustion. Other sources of Sulfur Dioxide include the industrial
extraction of metal from ores, as well as volanoes.
What are the health effects of Sulfur Dioxide
Short-term exposure to Sulfur Dioxide can harm the respiratory system leading to difficulty breathing and can exacerbate asthma. Over time, exposure to Sulfur Dioxide is associated with increased incidence of premature death.