DisPol 3.26
​Integrated application for simulations of pollutant dispersion in the atmosphere​​

Key Features
AUSTAL 3.3 Pollutant Dispersion Modeling
DisPol supports pollutant dispersion calculation and analysis using AUSTAL 3.3, the atmospheric dispersion model recommended by the German Federal Environment Agency.
The system provides:

• Regulatory-compliant dispersion simulations
• Scientifically validated atmospheric modeling
• Reliable environmental assessment workflows
• Support for industrial emission studies

AUSTAL Information – German Environment Agency

Google Earth & Excel Compatibility
DisPol supports seamless interoperability with common GIS and engineering data formats.
Supported Formats

• KML — visualization in Google Earth
• CSV — spreadsheet import/export and data processing

This enables efficient integration into environmental analysis and reporting workflows.

Automatic Terrain Map Download
The platform can automatically retrieve:

• Google terrain maps
• OpenStreetMap layers

allowing users to visualize dispersion profiles within real-world topographic and urban environments.

NOAA Meteorological Integration
DisPol integrates meteorological data workflows through NOAA (National Oceanic and Atmospheric Administration) datasets.
Supported Capabilities

• Download of real-time or historical meteorological profiles
• Wind speed and direction integration
• Conversion to AUSTAL-compatible .akt format
• Streamlined atmospheric input preparation

Pollutant & Emission Factor Management
The platform supports flexible pollutant configuration using recognized emission databases.
Features Include

• CORINAIR 2023 pollutant database integration
• Editable pollutant parameters
• Custom emission factor support
• Flexible industrial emission scenario setup

Versatile Construction of Simulation Models
DisPol provides flexible tools for building complex environmental dispersion models.
Supported Source Types

• Point sources
• Line sources
• Area sources

Users can configure detailed simulation parameters for project-specific environmental studies.

Automatic Dispersion Map Generation
The system automatically generates graphical dispersion outputs including:

• Pollutant concentration maps
• Spatial distribution visualization
• Time-dependent dispersion analysis
• Presentation-ready environmental graphics

Automated Environmental Reporting
DisPol includes integrated reporting tools for rapid documentation of simulation studies.
Reports Can Include

• Input configuration summaries
• Simulation parameters
• Dispersion results
• Maps and graphical outputs
• Regulatory documentation support

The reporting workflow simplifies communication with regulators, consultants, and project stakeholders.

These features make DisPol 3.26 a robust tool for environmental engineers, regulatory agencies, and researchers who need to simulate, analyze, and report on atmospheric pollutant dispersion with precision and ease.

Emission sources and evaluation points - OpenStreet and Google maps

Location tab: point, line and area emission sources and evaluation receptors placed on an OpenStreetMap base map, with their coordinates and geometry listed in the sources table.

Terrain roughness class register

Terrain characterisation: surface-roughness classes derived from CORINE Land Cover, mapped over the modelling domain for input to AUSTAL.

Wind/precipitation data - NOAA, AKTerm, MeteoBlue formats

Meteo Data tab: a speed-weighted wind rose built from NOAA station data (Râmnicu Vâlcea, 2025); DisPol also imports AKTerm and MeteoBlue formats.

Complex scenarios

Scenarios tab: definition of emission regimes and yearly day-by-day operating patterns for time-resolved dispersion runs.

Model construction

Model tab: emission factors assigned per NFR/CORINAIR sector and combined with each source to compute NOₓ, CO, SOₓ and PM₁₀ emission rates.

Austal input and run

Austal tab: DisPol generates the AUSTAL 3.3 input file (austal.txt) from the model and launches the dispersion calculation.

Generation of dispersion maps

Report tab: computed NOₓ annual-average concentration (µg/m³) shown as a colour-scaled plume over the street map, with values above regulatory limits highlighted.

Generation of the dispersion report

Automated reporting: a print-ready PDF report assembling input parameters, results tables and dispersion maps for regulators and stakeholders.

​3D Google Earth dispersion maps (kml)

KML export: the dispersion field draped over Google Earth Pro 3D imagery for realistic visual assessment.