Parameterization of Dust Emissions from Heaps and Excavations Based on Measurement Results and Mathematical Modelling

Assessment of the concentrations of dust pollution resulting from both measurements at
reference stations and those determined using mathematical modelling requires accurate identifi-
cation of the sources of emission. Although the concentration of dust results from several complex
transport processes, as well as chemical and microphysical transformations of aerosols, sources of
emissions may have a significant impact on the local level of pollution. This pilot study aimed to use
measurements of the concentrations of dust (with the specification of the PM10 and PM2.5 fractions)
made over a heap/excavation and its surroundings using an airship equipped with equipment
for testing the optical and microphysical properties of atmospheric aerosols, and a ground station
located at the facility. On the basis of the measurements, the function of the source of emissions
of dust was estimated. According to our study, the yearly emission of dust varies between 42,470
and 886,289 kg for PM10, and between 42,470 and 803,893 for PM2.5 (minimum and maximum
values). A model of local air quality was also used, which allowed us to verify the parameterization
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of emissions of dust pollutants for the PM10 and PM2.5 fractions from heaps and excavations based
on the modelling results.