Blood lead and cadmium levels and relevant factors among children from an e-waste recycling town in China.
Blood lead and cadmium levels and relevant factors among children from an e-waste recycling town in China.
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DOI：
10.1016/j.envres.2008.04.002
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发表时间：
2008-09
影响因子：
8.3
通讯作者：
Liang-kai Zheng;Kusheng Wu;Yan Li;Z. Qi;Dai-Sung Han;Bao Zhang;Chengwu Gu;Gangjian Chen;
中科院分区：
文献类型：
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作者：
Liang-kai Zheng;Kusheng Wu;Yan Li;Z. Qi;Dai-Sung Han;Bao Zhang;Chengwu Gu;Gangjian Chen;
贵屿县仍在进行原始的电子垃圾回收，因此有毒重金属可能会继续威胁当地儿童的健康。为探讨电子垃圾回收活动对儿童健康的影响，对贵屿、陈店两地278名8岁以下儿童的血铅、血镉水平进行了调查，并进行了比较。用石墨原子吸收分光光度计测定其BLL和BCL。对调查结果进行斯皮尔曼相关分析和Logistic回归分析，结果显示：贵屿县儿童BLL和BCL均显著高于陈店县儿童（p<0.01）。在贵屿，70.8%的儿童（109/154）的BLL>10μg/dL，20.1%的儿童（31/154）的BCL>2μg/L，而在陈店，38.7%的儿童（48/124）的BLL>10μg/dL，7.3%的儿童（9/124）的BCL>2μg/L（分别为p<0.01）。在贵屿地区，随着年龄的增长，BLL也有明显的增加趋势（p<0.01）。贵屿县儿童平均身高明显低于陈店县（P<0.01）。影响儿童BLL和BCL的危险因素主要包括父亲从事与电子垃圾相关的工作、儿童居住在贵屿地区以及儿童每天在路边玩耍的时间。环境污染，特别是铅污染，已经威胁到生活在电子垃圾回收场周围的儿童的健康。
BACKGROUNDPrimitive electronic waste (e-waste) recycling is ongoing in Guiyu, and thus toxic heavy metals may keep on threatening to the health of local children. Some related factors may contribute to the elevation of blood lead levels (BLLs) or blood cadmium levels (BCLs).OBJECTIVETo investigate the children's BLLs and BCLs in Guiyu and Chendian as compare to discuss the effects of primitive e-waste recycling activities on children's health.METHODSTwo hundred and seventy-eight children less than 8 years who lived in Guiyu and Chendian were observed, and their BLLs and BCLs were determined by graphite atomizer absorption spectrophotometer. Questionnaire survey for risk factors was also performed and data were analyzed using spearman correlation analyses and logistic regression analyses.RESULTSChildren living in Guiyu had significantly higher BLLs and BCLs as compared with those living in Chendian (p<0.01). In Guiyu, 70.8% of children (109/154) had BLLs>10μg/dL, and 20.1% of children (31/154) had BCLs>2μg/L, compared with 38.7% of children (48/124) had BLLs>10μg/dL and 7.3% of children (9/124) had BCLs>2μg/L in Chendian (p<0.01, respectively). We also observed a significant increasing trend in BLLs with increasing age in Guiyu (p<0.01). Mean height of children in Guiyu was significantly lower than that in Chendian (p<0.01). The risk factors related to children's BLLs and BCLs mainly included father's engagement in the work related to e-waste, children's residence in Guiyu and the amount of time that children played outside near the road everyday.CONCLUSIONSThere are close relationships between the BLLs, BCLs in children and the primitive e-waste recycling activities in Guiyu. Environmental pollution, especially lead pollution, has threatened the health of children living around e-waste recycling site.