Global Database of pollutant loadings at the start of simulation. It is referenced from the subcatchments.


The name of pollutant comes from the Runoff Pollutant Global Database. The unit for the "Loading" depends on the Pollutant Unit entered in the Runoff Pollutant Global Database.

The list of Pollutant names is defined in the Runoff Pollutant Global Database.

Initial Concentration

Load per unit area or initial concentration for each pollutant. The area is defined in the Subcatchment Water Quality dialog. The unit for 'load' depends on the pollutant unit as follows:

Pollutant UnitUnit for load
mg/literlb [kg]
'other'/liter 10^6 [10^6]
other 10^6.ft^3 [10^6.m^3]