Enviroware

Odor screening tool

Odor stack height estimation

Estimate the stack height needed to respect a selected odor criterion at ground level, including simplified corrections for rising terrain or one nearby building.

Open calculator Odor assessment services
  • Level 1 screening
  • Ground-level criterion
  • Terrain correction
  • Building correction
Stack screening Simple cases
Industrial stacks evaluated for odor impact
Use this as a first-pass screening tool. Complex terrain or multiple buildings need a dispersion modeling study.

Calculator

Enter source and site data.

OU/m3 in the air emitted by the stack.
m3/s at 0 C and 101.3 hPa.
OU/m3 ground-level criterion.
m. Use 0 when not applicable.
m. Set all building dimensions to 0 if absent.
m.
m.
Fill in the form and calculate the estimated stack height.

Use and limits

A screening value, not a permitting model.

This procedure is intended for simple situations. Complex orography, several nearby buildings, unusual source geometry, or sensitive permitting questions require a documented dispersion modeling study.

  1. 01
    Use 0 when absent
    Set terrain height or all building dimensions to zero when the feature is not relevant.
  2. 02
    Building data consistency
    Building length, width, and height must be either all positive or all zero.
  3. 03
    Next step
    For site-specific assessment, combine source characterization, meteorology, receptors, and model selection.