Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 83, Issue 2, Pages 255-259Publisher
SPRINGER
DOI: 10.1007/s00128-009-9688-6
Keywords
Mercury; Cadmium; Lead; Soil; Plants; Insects; Concentration factor; Biogeochemistry
Categories
Funding
- National Natural Science Foundation of China [40830535]
- Innovation Foundation of Chinese Academy of Sciences [KZCX3-SW-437]
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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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