Research Article
An Exposure Assessment of Arsenic and Other Trace Elements in Ha Nam Province, Northern Vietnam
Figure 1
Concentrations of As in urine and hair samples of two groups using groundwater for drinking (A) and washing (B). Exposure levels of group A were significantly higher than those of group B (Mann–Whitney U test, ). (a) As concentration in urine (μg/l). (b) As concentration in hair (μg/g).
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(b) |