Work Activity

n

AM

SD

GM

GSD

Median

No.

Non-Detects

Range

BeforeWork^A (µg/wipe)

All

59

10.5

15.4

6.2

2.5

6.0

23

2.5 - 85.7

Abrasive Blaster

42

9.9

13.3

6.2

2.4

6.0

15

2.5 - 69.7

Vacuumer

17

12

20.1

6.1

2.9

4.9

8

2.5 - 85.7

After Work^A (µg/wipe)

All

59

383.2

331

274.4

2.4

296.0

-

30.8 - 1520

Abrasive Blaster

42

368.7

322.6

261.0

2.4

301.0

-

30.8 - 1520

Vacuumer

17

419.0

358.7

310.7

2.2

258.0

-

117 - 1250

After Work^B (µg/wipe)

All

59

22.1

26.6

10.1

3.7

7.8

22

2.5 - 112.0

Abrasive Blaster

42

21.1

27.4

9.1

3.8

8.0

19

2.5 - 112.0

Vacuumer

17

24.5

25.1

12.7

3.5

7.8

3

2.5 - 74.3

Air Exposure (µg/m³)

Abrasive Blaster

13

597.6

610.4

290.1

4.3

380.0

-

29 - 2000

Vacuumer

2

200

70.7

193.6

1.4

200

-

150 - 250