The pie chart illustrates the number of sources which contributes to the concentration of annual average PM2.5 in Tashkent.
Overall, it is evident that boundary/windblown dust accounted for highest contribution to the PM2.5, while residential/ commercial heating and transport are followed that. In contrast, urban dust, waste burning, heavy industry, and light industry contributed minor proportion to the annual average of PM2.5.
To begin with, boundary/ windblown dust represented highest percentage of 36%. Following that, residential or commercial heating experienced 28% contribution for the yearly average PM2.5. Moreover, transport was the third – dominant source of PM2.5 concentration, and it contains approximately one-third of dedication.
In terms of that, both heavy industry and urban dust represented a similar segment to the PM2.5 concentration with 6%, whereas, light industry showed nearly one-tenth of constitution to the concentration of PM2.5. Finally, minor percentage was contributed to the concentration of PM2.5 by waste burning, and its proportion cannot be measured due to lowness.