Polair 4.2

Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

POLAIR 4.2

The advanced atmospheric

dispersion modeling software


Polair© 4.2• Reliable & Fast, Polair© 4.2

MODELS THE ATMOSPHERIC DISPERSION OF POLLUTANTS.

• For Environmental Impact Studies of Atmospheric Pollutant Emissions.

• A range of Atmospheric Dispersion Models including the Gaussian and Puff Models optimized for the atmospheric dispersion of pollutants.

Atmospheric Dispersion Modeling has never been this easy.


Modeling Framework• Import a map of the target

site in various graphic formats:

– Image Bitmap Windows (bmp)

– Graphics Interchange Format (gif)

– Tag Image File Format (tif)– Portable Network Graphics

(png)– CD Kodak Photo (pcd)

• Environment types of receptors modeled: rural, urban.

Aerial Map of Site


Meteorological Data• Complete meteorological data

management environment:

1. Import Text Files2. Edit Data3. Display Wind & Stability

Roses

Meteorological Data Editing

Wind Roses Display


Chemical Compound Assessed• Specifically a chemical

compound (selected from an incremental data base of 400 compounds and 5000 chemical synonyms)

• Chemical compounds from the data base can have the following thresholds:1. Olfactory Perception2. Toxicity3. Explosiveness4. Flammability5. Exposure to Different

Standards6. Emission Fluctuation over Time

(manual entry or .txt file import)

Chemical Compound Selection


Sources• Different types of emission

sources:

1. Point2. Surface3. Linear

• Characterized by:

1. Physical Dimensions2. Height3. Flow Rate 4. Flow Surface Distribution5. Flow Rate Time Variation

Parametrization of Sources


Receptors• Different receptors, in

order to target geographic areas of interest for atmospheric dispersion simulation:

1. Point2. Line3. Surface

• Characterization of receptors :

1. Dimensions2. Measuring Height

Definition of Receptors


Atmospheric Dispersion Models

1) Gaussian Model

2) Puff Model

3) MUC Model


Gaussian Model• The Gaussian Model is

one of the most widely used models in the world to study dispersion phenomena, notably by the EPA (Environmental Protection Agency). This model estimates pollutant concentrations at any point in space based on various factors:

1. Wind Speed & Direction

2. Atmospheric Stability3. Mixing Height4. Temperature

Gaussian Dispersion Plume


Puff Model

• The Puff Model was designed to simulate instantaneous releases into the atmosphere.

This model is used to predict the impact of an accident (tanker truck, holding tank leak or broken pipeline) to allow effective emergency planning.

Puff Model Simulation


MUC Model

• The MUC (Montreal Urban Community) model comprises the four formulae specified in MUC By-Law 90 regarding the atmospheric dispersion of gaseous contaminants.

Simulation with MUC Model


Plume Rise• Polair© 4.2 takes in account the plume

rise elevation by correcting the value of the stack height. In order to effectively evaluate this height, 3 models can be used:

1. U.S. Environmental Protection Agency (EPA)

2. Holland3. Montreal Urban Community (MUC)


Simulation Types

• Polair© 4.2 offers you multiple simulation types:

1. Hourly Maxima 2. Percentiles 3. Trigger Thresholds4. Mean

Concentrations5. Instantaneous

Concentrations


Simulation Results

• Personalize the display of your results

• Select and modify different display parameters.

Wind Roses at Receptor Point

Display Configuration


Simulation Reports• Automatically generate

simulation reports, exportable to text files

• Export your graphic results to bitmap files

Simulation Report

Export Graphic Results


Computer Requirements• Polair© 4.2 requires a computer with the following

characteristics:

For modeling atmospheric dispersion of pollutants,Polair© 4.2 is unbeatable.

Fast, effective, user-friendly, ... Modeling has never been this easy.

– Intel compatible processor (1 Ghz recommended)

– Windows 2000/XPOperating System

– 50 MB hard disk space for the initial installation

– 32 MB graphic card


Contact

• Odotech is a leading designer and producer of odor measuring and monitoring systems. Its services department carries out odor impact and related studies for municipalities, waste disposal operators, waste water treatment plants, and various industrial facilities, worldwide.

Odotech Inc.3333 Queen Mary Road, Suite 301Montréal (Québec) H3V 1A2CanadaPhone: (514) 340 5250Fax: (514) 340 [email protected]

Odotech SAS20 rue de la Villette69328 Lyon CedexFrancePhone : +33 (0) 4 26 68 51 56Fax : +33 (0) 4 26 68 51 57 [email protected]

http://www.odotech.com/

http://www.odotech.fr/

Technology

Polair 4.2