National Pollutant Inventory

Substances

Sulfur dioxide: Sources of emissions

Industry sources

Fossil fuel combustion sites particularly coal burning power plants; industrial processes such as wood pulping, paper manufacture, petroleum and metal refining and metal smelting, particularly from sulfide containing ores, e.g. lead, silver and zinc ores all emit sulfur dioxide to air.

Diffuse sources, and industry sources included in diffuse emissions data

Small textile bleaching and food preserving facilities and wineries, fumigation activities all emit sulfur dioxide to air.

Natural sources

Geothermal activity, including hot springs and volcanic activity; sulfur dioxide is produced from the natural decay of vegetation on land, in wetlands and in oceans all emit sulfur dioxide to air.

Transport sources

Vehicle exhaust.

Consumer products

Some solvents, dechlorination agents, bleaches and fumigation products.

Key

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Factory. Credit: Michael Lindquist