Table 1 Exposure limit values of mercury in urine and blood
HBM urine (μg/l) | HBM blood (μg/l) | ||
|---|---|---|---|
below 1st HBM exposure limit value | <= 7 | <=5 | Low level |
1st to 2nd HBM exposure limit value (HBM I) | > 7 to <= 25 | > 5 to <= 15 | Alert level |
Over 2nd HBM exposure limit value (HBM II) | > 25 | > 15 | High level |