Particulate matter enters the atmosphere as a result of human activity, as well as natural processes.
Since we still cannot influence natural processes, reducing the concentration of floating particles
is possible only by adjusting human activity. The emission of solid particles occurs during a large
number of everyday activities. Depending on the activity, particles of different chemical
compositions and sizes will be emitted. In this work, PM1, PM2.5, and PM10 particles were
measured and their daily ratio was calculated over a period of three months in 2022. In Sarajevo’s
urban area. The measurement was carried out with a laser sensor installed in the urban part of
Sarajevo. The results showed the presence of all three types of particles. Continuous monitoring
should suggest serious measures to the authorities in order to significantly reduce PM’s impact on
the health of Sarajevo residents.
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