Table 2 Personal welding fume exposure levels among welders in Akaki Kality sub-city, Addis Ababa, Ethiopia
Establishment | Average welding fume Exposure (mg/m3) | Average Sampling time (minute) | Mean (± SD) (mg/m3) | GM (± GSD) (mg/m3) | Samples Exceeding ACGIH & OSHA (5 mg/m3) n (%) |
|---|---|---|---|---|---|
Establishment 01 | 5.54 | 535 | 7.09 (± 3.38) | 6.38 (± 1.67) | 3 (60) |
4.53 | 536 | ||||
11.075 | 512 | ||||
3.555 | 492 | ||||
10.775 | 537 | ||||
Establishment 02 | 8.895 | 510 | 5.11 (± 2.15) | 4.76 (± 1.48) | 1 [20] |
4.98 | 543 | ||||
4.62 | 530 | ||||
3.125 | 501 | ||||
3.9 | 468 | ||||
Establishment 03 | 9.545 | 543 | 7.34 (± 2.37) | 6.94 (± 1.45) | 4 (80) |
9.365 | 536 | ||||
4.245 | 542 | ||||
8.345 | 542 | ||||
5.205 | 523 | ||||
All establishments | 3.13–11.08 | 468–543 | 6.51 (± 2.80) | 5.98 (± 1.54) | 16 (53.3) |