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Air Pollution – Monitoring, Modelling and Health
Finally, it is interesting to estimate how much of the mass in total is removed by the action of
the wind. From Figure 5 it can be seen that the FR1234 mass loss increases from 0.5 g/s/m 2 to
2.5 g/s/m 2 when the wind speed u .20 increases from 5 m/s to 18 m/s. In 10 minutes, the total
mass displaced over the flat surface of the pile would be 30 to 150 tonnes respectively. At the
same time this action would generate at least 22 kg and 570 kg of PM10 dust, respectively.
6. Acknowledgment
We gratefully acknowledge the support of Jožef Stefan International Postgraduate School
and of Environmental Agency of the Republic of Slovenia (ARSO).
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