The blood lead levels of outpatients aged 1-18 years from Lu’an, China, 2012-2014

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• 作者：Meichun Zhang ; ¹ ; ^{z02m14c588@aliyun.com" class="auth_mail" title="E-mail the corresponding author} ; Shengfang Guang¹ ; Rongrong Zhai ; Jie Liu ; Hui Guang ; Dong Chen ; Benzhong Li ; Songtao Zhang
• 关键词：BLL ; blood lead level ; GM ; geometric mean ; CI ; confidence interval ; OR ; odds ratios
• 刊名：Journal of Trace Elements in Medicine and Biology
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：33
• 期：Complete
• 页码：48-53
• 全文大小：790 K

文摘

To evaluate blood lead levels (BLLs) and possible influencing factors among children and adolescents in Lu’an, we collected blood samples of 3266 outpatients aged 1–18 years from January 2012 to December 2014 and BLLs were determined by atomizer absorption spectrophotometer. The results showed that the geometric mean (GM) of BLLs was 29.53 μg/L (95% CI: 29.00–30.06 μg/L) and the prevalence of BLLs ≥50 and 100 μg/L were 17.7% and 0.2%, respectively. The GM BLLs and prevalence of BLLs ≥50 μg/L were increased with age before 7 years old and then slightly decreased, and, contrary to previous studies, they were the highest at Jan–Feb and the lowest at Sep–Oct. From 2012 to 2014, the GM BLLs were significantly increased (P < 0.001) while the prevalence of BLLs ≥50 μg/L was decreased but with no significant difference (P > 0.05). These results suggested that although the BLLs of Lu’an children were lower than most areas of China and several neighboring cities as previously reported, they were still higher than that of developed countries. Meanwhile, the GM BLLs of children and adolescents from Lu’an have a trend of increase in recent years. A lot of future works need to be done to identify the risk factors for lead exposure.