Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2574
Title: Allocation and source attribution of lead and cadmium in maize (Zea mays L.) impacted by smelting emissions
Authors: Bi, X
Feng, X
Yang, Y
Li, X 
Shin, GPY
Li, F
Qiu, G
Li, G
Liu, T
Fu, Z
Keywords: Lead
Cadmium
Pb isotopes
Maize
Atmospheric deposition
Soil
Zinc smelting
China
Issue Date: Mar-2009
Source: Environmental pollution, Mar. 2009, v. 157, no. 3, p. 834-839 How to cite?
Journal: Environmental pollution 
Abstract: Plants grown in contaminated areas may accumulate trace metals to a toxic level via their roots and/or leaves. In the present study, we investigated the distribution and sources of Pb and Cd in maize plants (Zea mays L.) grown in a typical zinc smelting impacted area of southwestern China. Results showed that the smelting activities caused significantly elevated concentrations of Pb and Cd in the surrounding soils and maize plants. Pb isotope data revealed that the foliar uptake of atmospheric Pb was the dominant pathway for Pb to the leaf and grain tissues of maize, while Pb in the stalk and root tissues was mainly derived from root uptake. The ratio of Pb to Cd concentrations in the plants indicated that Cd had a different behavior from Pb, with most Cd in the maize plants coming from the soil via root uptake.
URI: http://hdl.handle.net/10397/2574
ISSN: 0269-7491
DOI: 10.1016/j.envpol.2008.11.013
Rights: Environmental Pollution © 2008 Elsevier. The journal web site is located at http://www.sciencedirect.com.
Appears in Collections:Journal/Magazine Article

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