title: Potential for Phytoremediation of PCDD/PCDF-Contaminated Sludge and Sediments Using Cucurbitaceae Plants: A Pilot Study.
abstract: The current study evaluates the impact of sewage sludge and urban reservoir sediment on changes in total and Toxic Equivalency (TEQ) PCDD/PCDF concentration in soil and phytotoxicity measured using three test species: Lepidium sativum, Sinapis alba, and Sorghum saccharatum, during 5 weeks of Cucurbita pepo L. cv 'Atena Polka' (zucchini) cultivation. 'Atena Polka' was found to reduce total PCDD/PCDF concentration by 37 % in soil amended with sludge and 32 % in soil treated with sediment from an urban reservoir. The TEQ reduction was almost twofold greater: 68 % in soil amended with sludge and 52 % with urban sediment. Addition of sludge increased root growth inhibition of L. sativum, S. alba and S. saccharatum, from 44 % to 90 %. Observed inhibitions were, however, reduced by 'Atena Polka' cultivation, and as high as 32 % promotion in root length was noted. Amendment with urban sediment, in turn, resulted in an initial 1 %-36 % promotion of root growth, while 'Atena Polka' cultivation reduced this positive effect by inhibition as high as 26 %. Results demonstrated positive influence of 'Atena Polka' on the phytotoxicity alleviation and mitigation of total and TEQ PCDD/PCDF concentrations in soil treated with bio-solids from sewage sludge and an urban reservoir.
authors.affiliation: European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Tylna 3, 90-364, Lodz, Poland. m.urbaniak@unesco.lodz.pl.|Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland. m.urbaniak@unesco.lodz.pl.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Urbaniak
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Wyrwicka
authors.affiliation: Nofer Institute of Occupational Medicine, Teresy 8, 91-348, Lodz, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Zieliński
authors.affiliation: European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Tylna 3, 90-364, Lodz, Poland.|Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Mankiewicz-Boczek
mesh_terms: D001673:Biodegradation, Environmental; D019662:Cucurbitaceae / Q000737:chemistry* / Q000187:drug effects; D000072338:Dibenzofurans, Polychlorinated / Q000032:analysis* / Q000633:toxicity; D019015:Geologic Sediments / Q000737:chemistry*; D031220:Lepidium sativum / Q000187:drug effects / Q000254:growth & development; D010865:Pilot Projects; D000072317:Polychlorinated Dibenzodioxins / Q000032:analysis* / Q000633:toxicity; D012722:Sewage / Q000737:chemistry*; D031226:Sinapis / Q000187:drug effects / Q000254:growth & development; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity; D045868:Sorghum / Q000187:drug effects / Q000254:growth & development
chemical_list: D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D012722:Sewage; D012987:Soil; D012989:Soil Pollutants
keywords: Phytoremediation; Phytotoxicity; Sewage sludge; Urban sediments