Environmental Software Solutions

Air dispersion modeling uses information about sources and meteorological conditions to calculate how a pollutant moves through the atmosphere and what the pollutant concentration is at specific points.


Gaussian Plume Air Dispersion Model
Our most commonly used air dispersion model. Applicable to a wide range of buoyant or neutrally buoyant emissions up to a range of 50km. Also suitable for complex terrain and urban dispersion.


Puff Air Dispersion Model
A non-steady state Gaussian puff model, suitable for long range transport, atmospheric chemistry, visibility and scenarios with complex wind fields, such as coastal and complex terrain areas.


Screening Air Dispersion Model for AERMOD
AERSCREEN View is a screening-level air quality model based on the US EPA AERMOD model which estimates worst-case ground level concentrations for a single source.

CALRoads View

Traffic Air Dispersion Model
A traffic dispersion model specifically designed for modeling emissions from vehicles. CALRoads can model timed intersections, parking lots and account from traffic patterns.


Lagrangian Particle Tracking Air Dispersion Model
A Lagrangian particle tracer model. Widely used in Germany, AUSTAL is capable of modeling complex wind fields and transient behavior.

Emergency release modeling is a specific kind of air dispersion modeling that deals with accidental releases, typically denser than air. This kind of modeling is used to evaluate accident scenarios and create emergency response plans.


Emergency Release Dense Gas Model
A GUI for the SLAB model. The SLAB model is an atmospheric dispersion model for denser-than-air releases. An ideal tool to predict hazardous zones and potential impacts of accidental releases.

Emissions management involves the calculation, collection and summarization of emission data from a variety of sources. This emission data may be used to create inventories or to run air dispersion models.


Ambient Quality Management Information System
Complete regulatory Ambient Quality Management Information System for your regulatory agency. A proven solution used by numerous governments and regulatory agencies worldwide.

Risk assessment involves modeling the fate and transport of pollutants beyond their dispersion in the air. Transport through mechanisms such as deposition, run-off and bioaccumulation are considered with an overall objective of assessing the impact of pollutants on people and the environment.

IRAP-h View

Human Health Risk Assessment Program
An advanced human health risk assessment program for conducting a comprehensive multi-pathway risk assessment based on the US EPA Human Health Risk Assessment Protocol (HHRAP).

EcoRisk View

Ecological Risk Assessment Program
An advanced ecological risk assessment program for conducting a comprehensive multi-pathway risk assessment based on the US EPA Screening Level Ecological Risk Assessment Protocol (SLERAP).

Lakes Environmental is proud to offer you the following software products as freeware.


Designed for screening level air dispersion modeling using the US EPA SCREEN3 model. With conservative calculations and simplified input requirements, SCREEN View is ideal for initial air dispersion screening runs.

Percent View

A utility that computes rolling averages and generates percentile concentrations for the following US EPA air dispersion models: AERMOD, ISCST3, and ISC-PRIME.


A fully operational wind rose program for your meteorological data. It provides frequency analysis, visual wind rose plots, and generates wind rose statistics and plots for several meteorological data formats.


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