Toxic metal levels in children residing in a smelting craft village in Vietnam: a pilot biomonitoring study

BMC Public Health

Table 2 Descriptive statistics of children’s blood and toenail metal levels (n = 20)

Metal^a	Mean ± stdev (μg/g)	Geometric mean (μg/g)	Minimum (μg/g)	95^thpercentile (μg/g)	Maximum (μg/g)
Pb-B^b	21.5 ± 16.2	17.3	6.7	62.3	62.3^a
As-N	0.364 ± 0.312	0.289	0.109	1.09	1.46
Cd-N	0.286 ± 0.326	0.204	0.079	1.07	1.52
Cr-N	0.922 ± 0.554	0.809	0.321	2.09	2.87
Pb-N	157 ± 315	29.3	5.88	957	1120
Mn-N	7.41 ± 4.41	6.17	2.34	15.6	18.9
Hg-N	2.63 ± 7.07	1.08	0.328	17.2	32.6

^aB denotes blood metal levels. N denotes toenail metal levels.
^bBlood Pb units are expressed in μg/dL. Three BLLs which exceeded the 69 μg/dL maximum quantifiable level were excluded from the calculated descriptive statistics.

ISSN: 1471-2458