Ozone Isopleth Plotting Program (OZIP) Web Interface
(Basic Interface)

DISCLAIMER!The OZIP model available through this Web page is NOT to be used for regulatory, research, legal, or scientific purposes. It is intended SOLELY as an educational tool.

Need help with using this interface? Read the Quick Guide to Using an Air Quality Model

Title and Initial Settings:
Title of the simulation:
Location:
Latitude : Longitude : Time Zone:
Year : Month : Day :

Base and Future Conditions

  1. Base Case
    O3 daily design value: ppm
    Design Ratio :
    parts of VOCs to one part of NOx

  2. Future
    Decrease in NOx emissions (percentage) : Decrease in CO emissions (percentage) :

Simulation Controls

Number of simulation runs (a smaller number is better! Use higher numbers only if you are not getting results data!):

Output Options:

Do you want an isopleth chart generated? If so, check the box! If not, uncheck the box, and your calculation will run faster!

NOTE: if you check the isopleth box, make sure you complete the isopleth values boxes and the image scaling boxes below.

Isopleth Values (you must enter 5 values)

First isopleth level (in ppm): Second isopleth level (in ppm): Third isopleth level (in ppm):
Fourth isopleth level (in ppm): Fifth isopleth level (in ppm):

Image Scaling

Note: image scaling is a percent, 1.0 is a full-sized graphic, 0.5 is half-sized. With less then a scaling of 1.0, some resolution may be lost:

Image Scaling:

Maximum VOC: Maximum NOx :

Economic Calculator

You can use this online economic calculator to determine the costs of your reductions!

Run the Model:

 NOTE! This simulation requires several minutes to run, generate numerical datafiles, convert datafiles to images, and create a customized HTML file for display. Model runs can take up to five (5) minutes! Please be patient! You can also look at a sample file of several simulation runs and a partial analysis.
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Developed by
The Shodor Education Foundation, Inc.