A survey on blood lead level in 1143 Chongqing children

Objective: To observe the blood lead level in 1143 Chongqing children in order to find out effective methods for prevention,diagnosis and treatment of saturnism in children.Methods: Blood lead level was determined by graphite furnace atomizer absorption spectrophotometric analysis.Results: The mean lead level of children in Chongqing was 47.34 μg/L with 8.6% of those being abnormal.There was no significant difference in the blood lead level among each age group,while statistical differences in the rate of higher blood lead level and the mean blood lead level in patients with attention deficit hyperactivity disorser(ADHD) were found.Conclusion: Although blood lead level of children in Chongqing is not high,attention should be paid to the harm to children caused by increasing environmental lead pollution.