where does sulfur dioxide come from
Answers. Best Answer: Almost all the sulphur dioxide in the air comes from industrial sources. Industrial smelters, which obtain metals from sulphide ores, produce tones of sulphur dioxide daily. Half of the output of sulphur dioxide comes from the burning of coal. All coal contains between 0.5 and 5 percent sulphur.The sulphur dioxide escapes up chimneys into the atmosphere. Worldwide, 150 million tones a year are emitted.alf of the output of sulphur dioxide comes from the burning of coal. All coal contains between 0.5 and 5 percent sulphur. The sulphur dioxide escapes up chimneys into the atmosphere.