Reverse modelling for the determination of fugitive sources of PM10
by Guido Cosemans, Clemens Mensink
International Journal of Environment and Pollution (IJEP), Vol. 44, No. 1/2/3/4, 2011

Abstract: Time-series of half-hourly PM10 concentrations and meteorological data measured near industrial sites where dusty materials are processed can be used to estimate PM10 source strengths for these activities using reverse modelling. Reverse modelling starts with building an over-determined system of linear equations: Observed_Cmj = Computed_Cmj(known sources) + Σ i=1, NComputed_Cmj(Qi) where the N values of Qi are determined by least squares regression. The paper focuses on regression solutions tainted by noise fitting that are physically meaningless, on rules to reduce the risk for noise fitting, and on how to use cumulative frequency distributions, time series for different averaging times and pollutant roses to obtain a physically sound solution.

Online publication date: Wed, 29-Apr-2015

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