Fig. 2

Blood levels of elemental lead(Pb) and cadmium(Cd) in the children aged 0~18 years by age, 2017-2022. A Results of aggregated data by age. B Results by year for different ages. C Results by age in different years. D Results by gender in different age groups. The boxplot showed the median values of elements and their percentile ranges. A: 0~1 years group, B: 1~3 years group, C: 3~7 years group, D: 7~13 years group, E: 13~18 years group