Why do think that Iceland does not produce a lot of sulfur dioxide?

This statement is incorrect. Iceland does produce a lot of sulfur dioxide. The high level of sulfur dioxide emissions in Iceland is primarily due to the country's geothermal activity and volcanic eruptions. The island nation is situated on the Mid-Atlantic Ridge, where the Eurasian and North American tectonic plates are separating. This geological setting gives rise to numerous volcanoes and geothermal areas. When magma rises to the surface during eruptions or geothermal activities, it releases various gases, including sulfur dioxide. These emissions can have significant environmental impacts both locally and regionally, contributing to air pollution, acid rain, and other ecological concerns.