TY - JOUR
T1 - Cadmium contamination in orchard soils and fruit trees and its potential health risk in Guangzhou, China
AU - Li, J. T.
AU - Qiu, J. W.
AU - Wang, X. W.
AU - Zhong, Y.
AU - Lan, C. Y.
AU - Shu, W. S.
N1 - Funding Information:
The authors would like to acknowledge financial support from the National “863” Project of China (No. 2003AA645010-3), the National Science Foundation of China (No. 40471117), the Key Project of Science and Technology of Ministry of Education of China (No. 031280) and the Key Project of Guangzhou Municipal Science & Technology Commission (No. 200251-C7061).
PY - 2006/9
Y1 - 2006/9
N2 - 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.
AB - 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.
KW - Accumulator
KW - Cadmium
KW - Fruits
KW - Health risk
UR - http://www.scopus.com/inward/record.url?scp=33646410932&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2005.10.016
DO - 10.1016/j.envpol.2005.10.016
M3 - Journal article
C2 - 16377042
AN - SCOPUS:33646410932
SN - 0269-7491
VL - 143
SP - 159
EP - 165
JO - Environmental Pollution
JF - Environmental Pollution
IS - 1
ER -
