Fig. 1From: Distribution of blood lead and cadmium levels in healthy children aged 0 to 18 years and analysis of related influencing factors in Henan, China: data findings from 2017 to 2022Blood levels of elemental lead(Pb) and cadmium(Cd) in the children aged 0~18 years by gender, 2017-2022. A Results of aggregated data by year. B Results of aggregated data by gender. C Results by year for different genders. D Results by gender in different years. The boxplot showed the median values of elements and their percentile rangesBack to article page