Blood Lead Levels and Associated Sociodemographic Factors among Children Aged 3 to 14 Years Living near Zinc and Lead Mines in Two Provinces in Vietnam

Table 6

Lead in soils, ambient air, and drinking water samples.

Sample	Study site			Min-max	Exceed VN standard; (, %)
Soils (mg/kg) ()	Ban Thi (BK)	30		0.4-33820.62	27 (90.0)
	Tan Long (TN)	30		11.72-1790.36	22 (73.33)
Ambient air (μg/m^3) ()	Ban Thi (BK)	30		1.6-18.5	30 (100.0)
	Tan Long (TN)	30		2-30.2	30 (100.0)
Drinking water (mg/L) ()	Ban Thi (BK)	31		0.002-0.0135	3 (9.68)
	Tan Long (TN)	30		0.0002-0.0994	3 (13.33)

Vietnamese standards.