occupational lead exposure of storage battery workers in korea. - storage battery
[Abstract] Two hundred and thirty-
Four lead workers working in a battery storage plant in South Korea were examined for lead in their blood (PbB)and urine (PbU). delta-
Amino ketone acid in urine (ALAU)
, Coproporphyrin in urine (CPU)
And hemoglobin. The dose-
The response relationship between PbB and ALAU indicates that it is below 50-
60 micrograms/dl is an appropriate practical limitation for biological monitoring of lead workers. The inter-
The relationship between PbB and ALAU or PbU is better explained with a segmented straight line function than with a curve function.
Including data for workers with PbB below 30
40 micrograms/dl, if they account for a relatively large proportion of the whole, seems to have a virtual effect on the overall regression function that leads to the trend of the curve.
At a given blood lead concentration, the ALAU of lead workers increased with exposure time.
This can be explained by the long-term effect of lead on the pre-quality of haem. Semi-
The quantitative measurement of the CPU, due to its simplicity, still plays an important role in the screening of lead workers, showing a high sensitivity (97. 8%)
Lead workers were tested with PbB of 60 micrograms/dl or more.