Screening of Pb accumulating plants from a heavy metal contaminated site. (S11-yoon111423-poster)
Authors:
J.K. Yoon* - Univ. of Florida L.Q. Ma - Univ. of Florida R.X. Cao - Univ. of Florida
Abstract:
Contamination of lead (Pb) represents one of the most pressing threat to water and soil resources as well as serious threat to human health. Phytoremediation, the use of plants to remediate contaminated sites can be an alternate cost-effective way to remediate heavy metal contaminated sites. A field study was conducted to screen native plants for their potential for Pb accumulation from a heavy metal contaminated site located at urban area of Jacksonville, Florida. Plant and soil samples were collected from 10 different locations at the site. Concentration of total and water soluble Pb in soils and total Pb concentrations in shoots and roots of plant samples were determined. At this site, the soil Pb
concentrations varied from 90 to 4100 mg kg-1. Native plants identified as a Gentiana pennelliana, Bidens alba, Phylanodiflora and Rubus showed Pb concentrations near 1000 mg kg-1 Especially, the bioconcentration factor of Wire grass was 5. This plant may have a potential for remediation of Pb contaminated sites.
Speaker Information: JoonKi Yoon, Univ. of Florida, 2169 Mccarty Hall AUniversity of FloridaP.O. B, Gainesville, FL 32611; Phone: 352-392-1951 ext.206; E-mail: [email protected]
Session Information: Wednesday, November 5, 2003, 4:00 PM-6:00 PM Presentation Start: 4:00 PM (Poster Board Number: 1714)
Keywords: Lead; Phytoremediation; Plant; Contaminated site
