INTRODUCTION AND PURPOSE: The objective of this study is to determine children's blood lead levels and identify sources of lead exposure. Childhood lead exposure constitutes a major pediatric health problem today in China. A blood lead screening survey program for children in the age group of 2-12 years residing in Pearl River Delta region, south of China, was carried out from Dec 2007 to Jan 2008. METHODS: Blood lead levels and lead isotope ratios of a total of 761 participants were assessed by inductively coupled plasma mass spectroscopy. Measurements of urban environmental samples for source identification of children lead exposure were also performed. RESULTS AND CONCLUSIONS: The geometric mean value of the children's blood lead levels was 57.05 μg/L, and 9.6% of them were higher than 100 μg/L. The blood lead levels were still much higher than those in developed countries. Based on the data of environmental lead source inventories, lead isotopic tracing revealed that there is about 6.7% past used gasoline Pb embedded in Shenzhen residential dust and about 15.6% in Guangzhou dust, respectively.
INTRODUCTION AND PURPOSE: The objective of this study is to determine children's blood lead levels and identify sources of lead exposure. Childhood lead exposure constitutes a major pediatric health problem today in China. A blood lead screening survey program for children in the age group of 2-12 years residing in Pearl River Delta region, south of China, was carried out from Dec 2007 to Jan 2008. METHODS: Blood lead levels and lead isotope ratios of a total of 761 participants were assessed by inductively coupled plasma mass spectroscopy. Measurements of urban environmental samples for source identification of children lead exposure were also performed. RESULTS AND CONCLUSIONS: The geometric mean value of the children's blood lead levels was 57.05 μg/L, and 9.6% of them were higher than 100 μg/L. The blood lead levels were still much higher than those in developed countries. Based on the data of environmental lead source inventories, lead isotopic tracing revealed that there is about 6.7% past used gasoline Pb embedded in Shenzhen residential dust and about 15.6% in Guangzhou dust, respectively.
Authors: Bruce P Lanphear; Richard Hornung; Jane Khoury; Kimberly Yolton; Peter Baghurst; David C Bellinger; Richard L Canfield; Kim N Dietrich; Robert Bornschein; Tom Greene; Stephen J Rothenberg; Herbert L Needleman; Lourdes Schnaas; Gail Wasserman; Joseph Graziano; Russell Roberts Journal: Environ Health Perspect Date: 2005-07 Impact factor: 9.031
Authors: Xia Huo; Lin Peng; Xijin Xu; Liangkai Zheng; Bo Qiu; Zongli Qi; Bao Zhang; Dai Han; Zhongxian Piao Journal: Environ Health Perspect Date: 2007-07 Impact factor: 9.031
Authors: Luiz Cláudio Cardozo Chaves; Julio Alejandro Navoni; Douglisnilson de Morais Ferreira; Silvia Batistuzzo de Medeiros; Thomas Ferreira da Costa; Reinaldo Antônio Petta; Viviane Souza do Amaral Journal: Environ Sci Pollut Res Int Date: 2016-01-06 Impact factor: 4.223