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The wind-frequency allocation method on discharge loading of function zones.

Bin Xu1, Tingyao Gao, Chenyan Hu

  • 1School of Environmental Science and Engineering, Tongji University, Shanghai, China. wenwu7611@hotmail.com

Journal of the Air & Waste Management Association (1995)
|June 21, 2002
PubMed
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This study presents a novel method for allocating pollutant discharge loads across functional zones within emission control regions. It improves upon existing models by considering wind patterns and pollutant dispersion for more accurate environmental management.

Area of Science:

  • Environmental Science
  • Atmospheric Chemistry
  • Pollution Control

Background:

  • Existing total emission control regulations in China utilize an 'A-value' method for area distribution.
  • This method may not fully account for geographical and meteorological factors influencing pollutant spread.

Purpose of the Study:

  • To introduce and validate a new, more accurate method for allocating discharge loading across functional zones in total emission control regions.
  • To compare the proposed method with the existing 'A-value' distribution approach.

Main Methods:

  • Development of a novel allocation method incorporating wind frequency, district position, and pollutant influence area.
  • Introduction of the concept of 'average downwind distance' into the allocation model.
  • Simulation of annual average pollutant concentration to evaluate the method's effectiveness.

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Main Results:

  • The new allocation method demonstrates a more reasonable distribution of discharge loading compared to the 'A-value' method.
  • Simulations indicate improved accuracy in predicting annual average concentrations within the emission control region.
  • The inclusion of specific geographical and meteorological factors enhances the model's applicability.

Conclusions:

  • The proposed allocation method offers a significant improvement over traditional area distribution techniques for total emission control.
  • This approach provides a more scientifically sound basis for managing pollutant discharge and optimizing environmental quality.
  • The 'average downwind distance' concept is a valuable tool for emission load allocation in complex regions.