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- W2414350175 abstract "Objective 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. Methods Through stratified random sampling method,4 kindergartens and 4 elementary schools were selected from each of three districts among 12 districts of Guangzhan. Totally 2373 children were recruited into this survey and 1 - 2 mi 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% HNO3 in the ratio of 1:20. Results Among 2373 children,the highest BLL was 330 μg/L,while the lowest was 10 μg/L Geometric mean (GM) of BLL was 58. 28 μg/L with 61.11 μg/L of male and 55.37 μg/L of female(t =8. 671 ,P =0. 000). Sixty(2. 51% ) children were identified as elevated BLLs( ≥100 μg/L), including 36(2. 90% ) male and 24 ( 2. 09% ) female ( X2 = 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 μg/L) were higher than those in downtown (58.09 μg/L) or in countryside(56.72 μg/L). Conclusion The BLLs in children and the ratio for children with elevated BLLs, had declined dramatically after 10-year implement of unleaded gasoline in Guangzhou.Key words: Children; Lead poisoning; Gasoline; Data collection" @default.
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- W2414350175 date "2008-10-01" @default.
- W2414350175 modified "2023-09-22" @default.
- W2414350175 title "[Lead levels in children after 10-year use of unleaded gasoline in Guangzhou municipality]." @default.
- W2414350175 doi "https://doi.org/10.3321/j.issn:0253-9624.2008.10.006" @default.
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