Article Info Á¦23±Ç 1È£ °­¿ø ³ó¾÷»ý¸íȯ°æ¿¬±¸ Vol.23, No.1, pp.22-33, 2011
Title Risk Assessment and Phytoremediation Potential of Native Plant Species for Soils Contaminated with Cr, Cu and As in Gangwon Province, Korea
Author Lee, S., A. R. A. Usman, S. A. M. Abd El-Azeem,
Institutions  
Abstract Contamination of the soil with Cr, Cu and As has become a worldwide environmental problem as a consequence of the use of chromated copper, arsenate (CCA) treated wood. This study was conducted (i) to determine the total concentrations of Cr, Cu and As in soil samples collected from contaminated sites, (ii) to identify native plant species grown on contaminated sites for phytoremediation, and (iii) to estimate the risk of adverse effects on human health. Wood and soil samples as well as four native plant species (Viola mandshurica, Cyndon dactylon, Setaria viridis and Acalypha australis) were collected from three contaminated sites with Cr, Cu and As in Gangwon Province, Korea. Our results found that the metal concentrations of these soil sampling sites were higher than their background levels of 45.32, 30.22 and 7.0 mg/kg for Cr, Cu and As, respectively, indicating the adverse effects on human health. None of the four plant species showed metal concentrations > 1000 mg/kg in their shoots and were not served as hyperaccumulators. Nevertheless, the screened plant species might be suitable for phytoextraction or phytostabilization. We conclude that the development of environmentally friendly technology for remediating heavy metal contaminated soils is needed to ensure human safety or agricultural purposes
Keyword Bioaccumulation factors, CCA-contaminated soils
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