Experience in using Models of Pollutant Dispersal in an Urban Environment

The experience gained in validating calculations of the ground-surface concentration of a pollutant injected into an urban environment from a stationary high-altitude source is presented. A Gaussian model using the average annual emission, the characteristic parameters of the source, and a real annu...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2020-09, Vol.128 (5), p.305-311
Main Authors: Panchenko, S. V., Pripachkin, D. A., Kryshev, A. I., Katkova, M. N.
Format: Article
Language:English
Subjects:
Analysis
Computer applications
Dispersal
Emission
Emissions
Energy industry
Hadrons
Heavy Ions
High altitude
Mathematical models
Meteorological parameters
Nuclear Chemistry
Nuclear Energy
Nuclear Physics
Nuclear power plants
Parameter estimation
Parameter uncertainty
Physics
Physics and Astronomy
Pollutants
Urban environments
Weather
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Summary:The experience gained in validating calculations of the ground-surface concentration of a pollutant injected into an urban environment from a stationary high-altitude source is presented. A Gaussian model using the average annual emission, the characteristic parameters of the source, and a real annual wind rose, as well as a Lagrangian-type model, in which the input parameters were the average daily emission and hourly meteorological parameters, are examined. The computational results were compared with the measured values of the concentration of 131 I. It is shown that when using average annual data the uncertainty of the estimates at a particular point located 4–6 km from the source сan reach 4-fold. For emissions which are not protracted (up to one day), even given a full-fledge set of data on the meteorological parameters, the uncertainty of the estimated average daily concentration at the same point can reach one order of magnitude.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-020-00692-6