Table 3. The results of biological sample analysis.

Items of determination	Result range	Normal value	Number of above normal value	Number of sample
Blood lead	417–772 ìg/L	<400 ìg/L	12	12
Urine lead	168–2,020 ìg/L	<70 ìg/L	11	11
Blood tin	<0.5 ìg/L	<0.5 ìg/L	0	12
Urine tin*	<0.7–848.6 ìg/L	<90 ìg/L	1	11
Tin in polypropylene particle	<0.10–1.92 mg/kg	–	–	5
Tin in orange pigment	<0.10 mg/kg	–	–	5
Tin in white oil	<0.10 mg/kg	–	–	5
Lead in polypropylene particle	<0.10 mg/kg	–	–	5
Lead in orange pigment	<0.10 mg/kg	–	–	5
Lead in white oil	3.1–12.3 mg/kg	–	–	5

*, no reference value and is based on the local standard.