International Scientific Journal

Thermal Science - Online First

online first only

Fractal approach to concentration distribution of atmospheric fine particle sizes

With the increase of particulate pollution in the atmosphere, it becomes extremely significant to understand the overall distribution characteristics of particulates and their adsorption of toxic gases for the source analysis and precise controlling of atmospheric particulate matters. The fractal theory was adopted to analyze particle sizes distribution characteristics in Xi'an city, China. Results showed the fractal dimension of particulate matters distribution ranged from 4.32 to 4.83, with an average fractal dimension of 4.54. A higher fractal dimension predicts a higher concentration of fine particles. Additionally the effects of outdoor temperature, humidity and wind speed on the fractal dimension were also studied experimentally.
PAPER REVISED: 2020-06-18
PAPER ACCEPTED: 2020-06-18
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