Quaries

Dust emission (PM 2.5) between processes but same day

Sunny day

Rainy day

Crushing

Drilling

Crushing

Drilling

Stirling

28

23

28

17

Ntake

48

28

30

20

Seyani

40

26

34

27

Halai

43

30

27

21

Min

28

23

27

17

Max

48

30

34

27

Mean

39.75

26.75

29.75

21.25

Stdev

9

3

3

4

COV

21

11

10

20

P-value

0.028

0.017