The following fact sheets explain some of the key areas of the NPI.
- About the NPI
Learn about what the NPI is, how it operates and what it can do for you.
- Make a map on the web
Find out about the make a map feature of the NPI database and how you can use it to find pollutant sources in your area.
- Diffuse Data
Find out about emissions from diffuse sources (e.g. moter vehicles)
