Geometric means and percentiles were calculated to describe metal concentration in samples. Levels below LOD was assigned the LOD (expressed as lg g1 creatinine and lg g1 for urine and hair samples, respectively) divided by the square root of 2
Geometric means and percentiles were calculated to describemetal concentration in samples. Levels below LOD was assignedthe LOD (expressed as lg g1 creatinine and lg g1 for urine andhair samples, respectively) divided by the square root of 2