naa a22 4500 510751601 CHVBK 20180411083106.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11270-013-1615-0 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1615-0 Water Leaching of Chelated Pb Complexes from Post-Phytoremediation Biomass [Elektronische Daten] [Erik Krueger, Joseph Darland, Stanislaw Goldyn, Rebecca Swanson, Robert Lehmann, Sally Shepardson, David Karpovich] There is a pollution risk when disposing of post-remediation biomass from chelate-assisted metal phytoremediation. To assess this risk, we measured water extractable lead (Pb) in Brassica rapa tissues with ICP-MS, determined if chelated Pb was present with HPLC-MS, and identified Pb storage locations using electron microscopy with x-ray microanalysis. Ethylenediaminetetraacetic acid (EDTA) and ethylenediaminedisuccinic acid (EDDS) were used to enhance Pb movement from contaminated soil to above ground B. rapa tissues. With Pb-EDTA, 92% (+/−5) of Pb was water extractable from dried tissues and complexed as Pb-EDTA. Electron microscopy and x-ray microanalysis showed Pb stored in xylem vessels. After composting of plant tissues, 79% (+/−2) of Pb was water extractable and complexed as Pb-EDTA. Total plant Pb accumulation was lower from soils amended with EDDS, but only 6.7% (+/−0.3) of Pb was water extractable from dried tissues and 55% (+/−25) from wet tissues of plants grown in EDDS-amended soils. Pb-EDDS was detected in tissues but not at quantifiable levels. This work emphasizes the need for proper treatment and disposal of contaminated post-remediation plant tissues, especially when using EDTA. Composting of plant tissues containing Pb-EDTA was shown to significantly reduce waste material volume and slightly reduce the water extractable fraction, but further immobilization of Pb would be necessary to minimize transport risk. Amending Pb-contaminated soils with EDDS can result in plant biomass with a lower potential to leach Pb into groundwater, but the lower Pb accumulation with EDDS would require longer phytoremediation time compared with EDTA. Springer Science+Business Media Dordrecht, 2013 Metal Phytoremediation nationallicence Metal Transport nationallicence Lead nationallicence Chelate nationallicence EDTA nationallicence EDDS nationallicence Krueger Erik Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Darland Joseph Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Goldyn Stanislaw Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Swanson Rebecca Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Lehmann Robert Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Shepardson Sally Department of Biology, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Karpovich David Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut Water, Air, & Soil Pollution Springer Netherlands 224/8(2013-08-01), 1-11 0049-6979 224:8<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1615-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1615-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Krueger Erik Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Darland Joseph Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Goldyn Stanislaw Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Swanson Rebecca Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Lehmann Robert Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Shepardson Sally Department of Biology, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 700 1- Karpovich David Department of Chemistry, Saginaw Valley State University, 7400 Bay Road, 48710, University Center, MI, USA aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/8(2013-08-01), 1-11 0049-6979 224:8<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer