Resolution

from the DCAR workshop on Practical Short-Range Atmospheric Dispersion Models

During May 6-8, 1992, more than 100 experts in air pollution modelling from 17 European countries, as well as the USA and Israel, met at Risø, Denmark for the first of three planned workshops on Practical Short-Range Atmospheric Dispersion Models.

In the final discussion the experts agreed upon the following statements:

• The practical atmospheric dispersion models which are presently used for regulatory purposes are based on 25-year old research (Pasquill-Gifford type stability classes, simple Gaussian dispersion schemes, i.a.). During the past 25 years, research in atmospheric dispersion has progressed substantially, thus rendering the presently used regulatory models outdated. Consequently, there is now a need for development and practical implementation of computer codes based on our present knowledge of atmospheric dispersion.

The Commission of the European Communities is asked to promote actions toward:

• The development of state-of-the-art practical models for regulatory purposes.
• The establishment of standard data bases for model verification, based on both past and future experiments.
• Harmonisation within the field of regulatory models.

Back to Homepage of the Initiative on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Regulatory Purposes