|Values are valid only on day of printing.|
Detecting lead exposure
Hair analysis for lead can be used to corroborate blood analysis or to document past lead exposure. If the hair is collected and segmented in a time sequence (based on length from root), the approximate time of exposure can be assessed.
0.0-3.9 mcg/g of hair
Reference values apply to all ages.
Normal hair lead content is <5.0 mcg/g. Hair lead >10.0 mcg/g indicates significant lead exposure.
Blood lead analysis has the strongest correlation with toxicity.
1. Strumylaite L, Ryselis S, Kregzdyte R: Content of lead in human hair from people exposed to lead. Int J Hyg Environ Health 2004;207:345-351
2. Barbosa F, Tanus-Santos J, Gerlach R, and Parsons P: A Critical review of biomarkers used for monitoring human exposure to lead: advantages, limitations, and future needs. Environ Health Perspect 2005;113:1669–1674
3. Sanna E, Liguori A, Palmes L, et al: Blood and hair lead levels in boys and girls living in two Sardinian towns at different risks of lead pollution. Ecotoxicol Environ Saf 2003;55:293-299