what are the sources of sulfur and nitrogen oxides in the atmosphere
Nitrogen Dioxide & Sulfur Dioxide What are they? Sulfur dioxide (SO 2) and nitrogen dioxide (NO 2) are both parts of smog (which is usually not visible in South Carolina) and acid rain.Sulfur dioxide comes from the burning of coal and oil.It is very smelly.ulfur dioxide (SO 2) and nitrogen dioxide (NO 2) are both parts of smog (which is usually not visible in South Carolina) and acid rain.Sulfur dioxide comes from the burning of coal and oil. It is very smelly.