As part of the Department of Environment and Heritage, the Australian Government has developed the National Pollutant Inventory (NPI), "...an Internet database designed to provide the community, industry and government with information on the types and amounts of certain substances being emitted to the environment." Visitors to the Web site can search for emissions by location, substance, source or facility. The NPI requires industries to report on their emissions to air, land and water on 90 NPI substances including Benzene, Carbon Monoxide, Cyanide (inorganic) compounds, Methanol, and Sulfuric Acid. The Web site contains detailed information on which industrial facilities must report their emissions and how to do so. The site also provides tools for people to map emissions data or download data.