Kalpana Kalpana (Editor)

ISC3

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ISC3 (Industrial Source Complex) model is a popular steady-state Gaussian plume model which can be used to assess pollutant concentrations from a wide variety of sources associated with an industrial complex.

Contents

This model can account for the following:

  • Point, area, line, and volume sources
  • Settling and dry deposition of particles
  • Downwash
  • Separation of point sources
  • Limited terrain adjustment

    • ISC3 operates in both long-term and short-term modes. The screening version of ISC3 is SCREEN3.

    Very recently, the status of ISC3 as a Preferred/Recommended Model of the US Environmental Protection Agency has been withdrawn, but it can still be used as an alternative to the Preferred/Recommended models in regulatory applications with case-by-case justification to the reviewing authority.

    Input data

    ISC short term version required two sets of data: source data and hourly averaged meteorological data:

    Source data

  • Dimensions of the source
  • Emission discharge rate
  • Release height of the emission source

    • Meteorological data

  • Ambient temperature, K
  • Wind direction
  • Wind speed, m/s
  • Atmospheric stability classes (A through F, entered as 1 through 6)
  • Urban and rural mixing height, m

    • References

    ISC3 Wikipedia
    (Text) CC BY-SA