Pollutants can be added, deleted, renamed or merged together. Pollutant names must be unique and are case sensitive, if duplicate names are entered these are modified to be unique.
Note: pollutant names are case sensitive so some duplication may occur, use the Merge functionality to eliminate duplicates.
Add - Adds a new Pollutant to the end of the list.
Delete - Deletes currently selected Pollutant.
Merge - Only the lead pollutant remains and all other selected pollutants are deleted.