Plant Uptake of LAS and DEHP from Sludge Amended Soil - ACS

Chapter 7

Plant Uptake of LAS and DEHP from Sludge Amended Soil 1

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C.Grøn1,4,F. Laturnus , G. K. Mortensen , H . Egsgaard , L. Samsøe-Petersen , P. Ambus , and E. S. Jensen 2

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1Risø National Laboratory, P.O. Box 49, DK-4000 Roskilde, Denmark VKI, Agern Allé 11, DK-2970 Hørsholm, Denmark Royal Agricultural University, Agrovej 10, DK-2630 Taastrup, Denmark 4Present address: VK1, Agern Allé 11, DK-2970 Hørsholm, Denmark (e-mail: [email protected]) 2

Downloaded by GEORGETOWN UNIV on October 6, 2016 | http://pubs.acs.org Publication Date: January 15, 2000 | doi: 10.1021/bk-2001-0772.ch007

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Uptake in crop plants of L A S and D E H P from sewage sludge was studied in controlled greenhouse experiments. Both L A S and D E H P could be measured in the green parts of barley (highest concentrations 0.5 μg total L A S / g dw and 0.6 μg DEHP/g dw) and DEHP also in the green parts of carrot (mean 1.2±0.59 μg DEHP/g dw). The L A S and D E H P found in the green parts of the plants probably originated from the air or from dust, and not from the soil or sludge. L A S from added sludge were found in barley roots at a maximum concentration of about 20 μg/g dw, whereas adsorption/uptake of sludge borne DEHP was not observed. LAS could not be measured (