Table 1 Personal total dust exposure (mg/m³) among cleaners and production workers in two cement factories in Ethiopia

All

Cleaners

168

58

2215

432

12-6710

5.2

0.02

90.5

Production workers

94

47

56

8.2

0.7-72

2.2

1.1

48

Crusher

Cleaners

44

16

2202

313

6-6600

7.0

0.0

84

Production workers

24

12

5.2

2

0.6-19

1.3

0.0

8.3

Packing

Cleaners

31

11

1039

348

24-3280

3.2

0.0

97

Production workers

33

18

35

26

7.7-76

0.6

0.05

88

Kiln

Cleaners

37

13

3310

419

8-10200

6.1

0.7

86.5

Production workers

21

10

161

6

0.4-1130

5

0.4

24

Raw mill

Cleaners

56

18

2153

641

31-7160

3.8

0.1

94.6

Production workers

16

7

37

9.2

0.5-147

2.2

2.2

56.3