Woelfel's IMMI software offers a series of services in air-pollution assessment. The following air-dispersion models are used:
basic Gaussian plume model
advanced Gaussian plume model (compliant with VDI 3782-1) and Canyon-Plume-Box model
Lagrangian model (compliant with both VDI 3945-3 and the German TA-Luft "Technical Instructions Air") with wind-field pre-processor
Austrian Gaussian plume model (compliant with ÖNORM M 9440) and Stern-Giebel near-field model
These models can be used to determine concentrations of pollution of all typical air-pollutants, taking meteorological conditions into account.