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| Hilber, Isabel; Vogt, Lea; Wyss, Gabriela S.; Mäder, Paul; Schulin, Rainer. |
| Organochlorine pesticides (OCP) were once applied world wide but have been banned meanwhile in most countries because of their ecotoxicity, bioaccumulation and persistence. However, residues can still be present in soils even many years after applications have been stopped and taken up by crop plants. OCP accumulation from bound residues was found to be a particular problem in Cucurbitaceae plants. Two soil surveys performed in 2002 and 2005 in Switzerland revealed that OCP residues were taken up by cucumbers grown in soils that have been converted to organic production in the meantime. Even if legal tolerance values are not exceeded, this is a serious economic problem for the farmers affected by contaminated crops, because consumers of organically grown... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2007 |
URL: http://orgprints.org/13424/1/Hilber%2Detal%2D2007_exclusion_of_contaminants_Cost859.pdf |
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| Hilber, Isabel; Wyss, Gabriela S.; Mäder, Paul; Bucheli, Thomas D.; Meier, Isabel; Vogt, Lea; Schulin, Rainer. |
| Activated charcoal (AC) amendments have been suggested as a promising, cost-effective method to immobilize organic contaminants in soil. We performed pot experiments over two years with cucumber (Cucumis sativus L.) grown in agricultural soil with 0.07 mg kg_1 of weathered dieldrin and 0, 200, 400, and 800 mg AC per kg soil. Dieldrin fresh weight concentrations in cucumber fruits were significantly reduced from 0.012 to an average of 0.004 mg kg_1, and total uptake from 2 to 1 mg in the 800 mg kg_1 AC treatment compared to the untreated soil. The treatment effects differed considerably between the two years, due to different meteorological conditions. AC soil treatments did neither affect the availability of nutrients to the cucumber plants nor their yield... |
| Tipo: Journal paper |
Palavras-chave: Soil; Vegetables. |
| Ano: 2009 |
URL: http://orgprints.org/26375/1/Hilber_etal_2009_EP157.pdf |
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