期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 83, 期 2, 页码 255-259出版社
SPRINGER
DOI: 10.1007/s00128-009-9688-6
关键词
Mercury; Cadmium; Lead; Soil; Plants; Insects; Concentration factor; Biogeochemistry
资金
- National Natural Science Foundation of China [40830535]
- Innovation Foundation of Chinese Academy of Sciences [KZCX3-SW-437]
Mercury, cadmium, and lead concentrations of ashed plants and insects samples were investigated and compared with those of soil to reveal their biogeochemical processes along food chains in Huludao City, Liaoning Province, China. Concentration factors of each fragments of the soil-plant-the herbivorous insect-the carnivorous insect food chain were 0.18, 6.57, and 7.88 for mercury; 6.82, 2.01, and 0.48 for cadmium; 1.47, 2.24, and 0.57 for lead, respectively. On the whole, mercury was the most largely biomagnified, but cadmium and lead were not greatly accumulated in the carnivorous insects as expected when the food chain extended to the secondary consumers. Results indicated that concentration factors depended on metals and insects species of food chains.
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