Table 6 Categorization of the BLLs of the study workers according to the OSHA recommendation limits. (* significant at p < 0.05)
BLL categories | Exposed groups (n = 36) | Unexposed groups (n = 34) | ||||
|---|---|---|---|---|---|---|
n (%) | Mean ± SD µg/dl | P value | n (%) | Mean ± SD µg/dl | P value | |
< 10 (normal) | 2 (5.6) | 6.8 ± 1.1 | 0.001* | 11 (32.4) | 3.3 ± 3 | 0.001* |
10–40 (acceptable) | 26 (72.2) | 26.2 ± 7.3 | 0.001* | 23 (67.6) | 20.3 ± 6.7 | |
> 40 (dangerous) | 8 (22.2) | 46.9 ± 3.9 | 0.001* | - | - | |