Abstract
The absorption and accumulation of Pb, Zn, Cu and Cd in some endurant weed plant species that survived in an old smeltery in Liaoning, China, were systematically investigated. Potential hyperaccumulative characteristics of these species were also discussed. The results showed that metal accumulation in plants differed with species, tissues and metals. Endurant weed plants growing in this contaminated site exhibited high metal adaptability. Both the metal exclusion and detoxification tolerance strategies were involved in the species studied. Seven species for Pb and four species for Cd were satisfied for the concentration time level standard for hyperaccumulator. Considering translocation factor (TF) values, one species for Pb, seven species for Zn, two species for Cu and five species for Cd possessed the characteristic of hyperaccumulator. Particularly, Abutilon theophrasti Medic, exhibited strong accumulative ability to four heavy metals. Although enrichment coefficients of all samples were lesser than 1 and the absolute concentrations didn’t reach the standard, species mentioned above were primarily believed to be potential hyperaccumulators.
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Acknowledgment
The authors acknowledge the financial support from the Natural Science Foundation of China as a project for Distinguished Young Scholars (No. 20225722). This work is also a component part of the key basic research development and planning (973) project (No. 2004CB418503) that was supported by the Ministry of Science and Technology, the People’s Republic of China.
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Cui, S., Zhou, Q. & Chao, L. Potential hyperaccumulation of Pb, Zn, Cu and Cd in endurant plants distributed in an old smeltery, northeast China. Environ Geol 51, 1043–1048 (2007). https://doi.org/10.1007/s00254-006-0373-3
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DOI: https://doi.org/10.1007/s00254-006-0373-3