Analysis on blood lead detection in 3 248 children in Haikou City and the surrounding areas

Objective To investigate the blood lead detection of children in Haikou and the surrounding areas,and to provide scientific guidance for the prevention of lead poisoning in children.Methods The concentration of lead was determined using graphite furnace atomic absorption spectrophotometer in 3 248 blood samples of children from the Hainan Provincial People's Hospital from July 2010 to June 2011.The mean levels of blood lead and the rate of lead poisoning were analyzed.Results The mean level of blood lead was 44.315 μg/L in the 3 248 children,which was 44.400 μg/L in boys and 44.171 μg/L in girls.46 cases were found with no less than 100 μg/L blood lead(1.41%),including 27 boys(1.32%) and 19 girls(1.57%).The mean level of blood lead and the rate of lead poisoning showed no statistically significant differences in children of different ages and gender.Conclusion The mean level of blood lead and the rate of lead poisoning in Haikou and the surrounding areas is lower than the national average level.The level of blood lead is influenced by the habitat,living habits and other factors,thus great importance should be attached to the prevention and treatment of blood lead.