РМ_2.5 source of pollution

Contribution to pollution (%)

NRC

Zuun Ail

1

Combustion-1

25.5

50.6

2

Combustion-2

8.1

21.6

3

Soil

31.6

4.9

4

Road dust

15.2

13.9

5

Motor vehicles

19.7

9.1