广州市天河区1000例城区与工业区儿童发铅分析

Investigation on Hair Lead of 1000 Children in Civic Locations and Industrial Locations of Tianhe

抽样调查了天河城区及工业区３～６岁托幼儿童的发铅，进行分组对照比较。结果表明，生活在城区儿童的发铅异常者占抽样人数的３４．４％，而生活在工业区儿童的发铅异常者则占总抽样人数的５２．２％，把两组儿童的发铅平均含量作比较发现，城区组显著低于工业区组儿童（Ｐ＜０．０１）。提示：生活在工业区的儿童是铅暴露的高危人群。

To estimate hair lead level of children at the age of 3 - 6 in Guangzhou and to indentify factors of lead poisoning to children, her lead of children in the civic locations (control group) and the industri- al locations(experiment group ) of Tianhe was investigated.The mean hair lead level in the civic loca- tions was 12. 15± 3.47, 172 (34.4% ) children living in civic locations were found with hair lead level increasing.The mean hair lead level in the industrial locations was 17.98±5.5, 262 (52.4% ) chil- dren living in industrial locations were found with a hair lead level increasing. The hair lead level of chil- dren in civic locations was lower than those in industrial locations (P < 0.01). Enough attention should be paid to.