Lead, Arsenic, and Cadmium Contamination and Its Impact on Children's Health in La Oroya, Peru

Table 3

IEUBK model blood Pb estimates by site and age. For each site, the median Pb concentration for all three media was included in a model run; all other media were set to zero to evaluate the impact of indoor dust, soil, and drinking water. Blood Pb results are given for each age cohort, the mean, and the 95% confidence interval (in μg dL⁻¹).

Age (years)	La Oroya Antigua	Santa Rosa de Sacco	Paccha	Huayhuay	Yauli
0.5–1.0	21.8	10.3	6.3	5.0	17.1
1.0–2.0	25.2	12.0	7.4	5.9	19.9
2.0–3.0	24.0	11.3	6.9	5.5	18.8
3.0–4.0	23.6	10.9	6.6	5.2	18.4
4.0–5.0	20.4	9.0	5.3	4.2	15.7
5.0–6.0	17.7	7.4	4.3	3.4	13.3
6.0–7.0	15.8	6.5	3.7	2.9	11.8
Mean [Pb]	21.2	9.6	5.8	4.6	16.4
95% C. I.	6.9	4.1	2.8	2.2	6.0