Objective: To understand the dietary mercuric intakes of children and adults from Jinhu area and assess its safety.
Methods: The duplicate food portions of 62 subjects were collected over 3 consecutive days. Mercuric levels in duplicate samples were determined by the atomic fluorescence spectrometry. The safety of dietary mercuric intakes of children and adults from Jinhu area was evaluated by using the dietary mercuric PTWI recommended by JECFA of FAO/WHO.
Results: It was found that the percentile 97.5 weekly dietary mercuric (of PTWI) intakes of children and adults were 2.92 microg/kg bw (58.4%), 1.67 microg/kg bw (33.4%) respectively. The weekly dietary mercuric intakes of children calculated on a body weight basis were higher than that of adults ( z = 4.0406, P < 0.0001).
Conclusion: Although the dietary mercuric intakes of children and adults are safe, it should be decreased to a lower level. Moreover, the dietary exposure to mercury are higher for children and should be considered seriously.
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