. Author manuscript; available in PMC: 2011 May 17.

Published in final edited form as: Curr Probl Pediatr Adolesc Health Care. 2010 Sep;40(8):186–215. doi: 10.1016/j.cppeds.2010.07.002

TABLE 7.

Guidance levels for mercury concentrations in blood, urine, and hair

	Hg in blood (μg/L)	Hg in urine (μg/L)	Hg in urine (μg/g Crea)	Hg in hair (μg/kg/d)
Human bio-monitoring threshold limits²²⁴
HBM I (alert value)	5	7	5	—
HBM II (action level)	15	25	20	—
US EPA bench mark²³⁵(expressed as reference dose related to body weight and day)	—	—	—	0.1