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 131I. 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.
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Translated from Atomnaya Énergiya, Vol. 128, No. 5, pp. 282–288, May, 2020.
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Panchenko, S.V., Pripachkin, D.A., Kryshev, A.I. et al. Experience in using Models of Pollutant Dispersal in an Urban Environment. At Energy 128, 305–311 (2020). https://doi.org/10.1007/s10512-020-00692-6
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DOI: https://doi.org/10.1007/s10512-020-00692-6