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Health Risk Assessment of Soil-oral Exposure of Heavy Metal Contaminated Soil by in vitro Method / 环境与健康杂志
Journal of Environment and Health ; (12)2007.
Artigo em Chinês | WPRIM | ID: wpr-545413
ABSTRACT
Objective To assess the health risk of soil-mouth exposure of soil heavy metal pollution by in vitro method. Methods Collected the soil sampling from the heavy metals contaminated field and roadside. Digested the soil sample by in vitro device and determined the content of Cd, Pb, Zn in the solution in the simulated stomach phase and intestine phase respectively with ICP-MS after centrifuging. Calculated the exposure and assess health risk. Results Bioaccessibility of Cd, Pb and Zn at the stomach phase was 21%-33%, 2%-28%, 33%-43% respectively in the polluted areas, and 27%, 23%, 95% in the control area; At the intestine phase was 16%-19%, 3.4%-4.9%, 8%-14% in polluted areas and 11%,2.6%,18% in control area respectively. The amount of available Cd, Pb and Zn in the stomach phase was 0.04-1.46 ?g/d, 3.09-5.53 ?g/d, 3.86-9.39 ?g/d in polluted areas and 0.01 ?g/d, 0.74 ?g/d ,5.64 ?g/d in control area for children, and 0.01-0.36 ?g/d, 0.77-3.88 ?g/d, 0.97-9.85 ?g/d in polluted areas and 0.00 ?g/d. 0.19 ?g/d, 1.41 ?g/d in the control area for adult ; at intestine phase the amount of available Cd, Pb and Zn was 0.03-0.71 ?g/d, 0.50-9.92 ?g/d, 1.26-9.55 ?g/d in polluted areas and 0.00 ?g/d, 0.08 ?g/d, 1.07 ?g/d in the control area respectively for children, 0.01-0.18 ?g/d, 0.11-2.48 ?g/d, 0.31-2.39 ?g/d in the polluted areas and 0.00 ?g/d,0.02?g/d,0.27 ?g/d in the control area respectively for adult. Conclusion Heavy metals exposure through soil-mouth pathway will increase the total health risk of heavy metal to exposed population.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo de etiologia / Fatores de risco Idioma: Chinês Revista: Journal of Environment and Health Ano de publicação: 2007 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo de etiologia / Fatores de risco Idioma: Chinês Revista: Journal of Environment and Health Ano de publicação: 2007 Tipo de documento: Artigo