Lead levels in children after 10-year use of unleaded gasoline in Guangzhou municipality / 中华预防医学杂志
Chinese Journal of Preventive Medicine
;
(12): 727-730, 2008.
Artigo
em Chinês
| WPRIM
| ID: wpr-242703
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the blood lead levels (BLLs) in children after 10-year use of unleaded gasoline in Guangzhou and evaluate the effect of this measure.</p><p><b>METHODS</b>Through stratified random sampling method, 4 kindergartens and 4 elementary schools were selected from each of three districts among 12 districts of Guangzhou. Totally 2373 children were recruited into this survey and 1-2 ml blood was sampled from each child through vein. The lead concentration in blood samples was determined with Inductively Coupled Plasma Mass Spectrometry (ICP-MS) after diluted with 0.1% Triton X-100 and 0.1% HNO(3) in the ratio of 120.</p><p><b>RESULTS</b>Among 2373 children, the highest BLL was 330 microg/L, while the lowest was 10 microg/L. Geometric mean (GM) of BLL was 58.28 microg/L with 61.11 microg/L of male and 55.37 microg/L of female (t=8.671, P=0.000). Sixty (2.51%) children were identified as elevated BLLs (>or=100 microg/L), including 36 (2.90%) male and 24 (2.09%) female (chi2=1.594, P=0.207). Compared to the surveys conducted in China 10-year ago, the children with elevated BLLs decreased 96.28% and the GM of BLLs reduced 58.37%. BLLs in suburb children (60.33 microg/L) were higher than those in downtown (58.09 microg/L) or in countryside (56.72 microg/L).</p><p><b>CONCLUSION</b>The BLLs in children and the ratio for children with elevated BLLs, had declined dramatically after 10-year implement of unleaded gasoline in Guangzhou.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Sangue
/
Gasolina
/
China
/
Coleta de Dados
/
Exposição Ambiental
/
Chumbo
Limite:
Criança
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Chinês
Revista:
Chinese Journal of Preventive Medicine
Ano de publicação:
2008
Tipo de documento:
Artigo
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