Medians (ranges) for the exposure data of the four different study groups
| Reference group | Groups exposed to aluminium | |||||
|---|---|---|---|---|---|---|
| Mild steel welders (n=39) | Smelters (n=119) | Flake powder (n=16) | Welders (n=38) | |||
| Aluminium concentration: | ||||||
| Blood (μg/l) | 1.0 (dl–11) | 1.0 (dl–18) | 9.0 (dl–21) | 3.0 (dl–27) | ||
| Urine (μg/l) | 3.0 (dl–26) | 4.0 (dl–34) | 83.0 (12–282) | 22.0 (4–255) | ||
| Urine (μg/g creatinine) | 4.7 (dl–25) | 4.2 (dl–23) | 59.0 (12–139) | 24.0 (4.5–162) | ||
| Manganese concentration: | ||||||
| Blood (μg/l) | 7.0 (2–16) | 6.0 (1–17) | 8.5 (5–12) | 8.0 (2–17) | ||
| Lead concentration: | ||||||
| Blood (μg/l) | 42 (8–76) | 22 (6–89) | 14 (dl–31) | 36 (17–92) | ||
dl=Detection limit for the method (<1 μg/l).