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Cadmium contamination in orchard soils and fruit trees and its potential health risk in Guangzhou, China.
Li, J T; Qiu, J W; Wang, X W; Zhong, Y; Lan, C Y; Shu, W S.
Afiliación
  • Li JT; School of Life Sciences and State Key Laboratory of Biocontrol, Sun Yat-sen (Zhongshan) University, Guangzhou, PR China.
Environ Pollut ; 143(1): 159-65, 2006 Sep.
Article en En | MEDLINE | ID: mdl-16377042
This study examines cadmium (Cd) contamination in orchard soils and fruit trees in Guangzhou, China, and assesses its potential health risk. Soils and tissues samples of three species of fruit trees were collected from three orchards. The average soil Cd concentration was 1.27, 1.84 and 0.68 mg/kg in orchards I, II, and III, respectively. The carambola (Averrhoa carambola) accumulated exceptionally high concentrations of Cd (7.57, 10.84, 9.01 and 2.15 mg/kg dw in root, twig, leaf and fruit, respectively), being 6.0-24 times and 4.0-10 times the corresponding tissue Cd in the longan (Dimocarpus longan) and wampee (Clausena lansium), respectively. Furthermore, all Cd concentrations (0.04-0.25 mg Cd/kg fw) of the fruits exceeded the tolerance limit of cadmium in foods of PR China (0.03 mg/kg fw). Our results indicate that the carambola tree has high Cd accumulation capacity and might be a Cd accumulator; and its fruit, among the three species of fruits studied, also poses the highest potential health risk to local residents.
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Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Cadmio / Contaminación de Alimentos / Salud Ambiental / Agricultura / Frutas Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Humans País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2006 Tipo del documento: Article
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Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Cadmio / Contaminación de Alimentos / Salud Ambiental / Agricultura / Frutas Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Humans País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2006 Tipo del documento: Article