Association of child blood lead and its chemical form in the room dust
10.3760/cma.j.issn.0254-6450.2009.04.012
- VernacularTitle:儿童血铅与室内尘埃中铅的化学形态相关性研究
- Author:
Gui-Guo BIAN
1
Author Information
1. 福建省环境保护局
- Keywords:
Child blood lead;
Chemical form;
Exposure;
Intake
- From:
Chinese Journal of Epidemiology
2009;30(4):356-359
- CountryChina
- Language:Chinese
-
Abstract:
Objective Studies on the association of child blood lead and the chemical form of the room dust lead as well as to explore its removability and the biological validity. Methods Using minute step extraction process to analyze and test the seven chemical forms of lead in the dust of a room. Blood lead count and humus union condition, carbonate union condition exposition quantity, amount of radiation, output quantity from environmental to blood lead etc. were calculated. Results The child blood lead was related to the various chemical form but carbonate condition (r=0.531, P<0.01) and humus (r=0.361, P<0.05) showing statistical significance and also related to the exposure of carbonatecondition (carbonate: r=0.837, P<0.01). The output quantity (carbonat pH=3.5: r=0.837, P<0.01 )of simulate gastric juice was related to the exposure to humus (r=0.746, P<0.05), intake (r=0.746, P<0.05) and the output quantity of carbonate condition simulate gastric juice (pH=1.5 : r=0.745, P<0.05).Conclusion In South China, areas with high carbonate content lead and the union conditions of carbonate and humus were possibly the main reasons causing excessive amount of child blood lead level.
