"Existeix una força motriu més poderosa que el vapor, l'electricitat i l'energia atòmica: la voluntad" Albert Einstein









dilluns, 11 d’abril del 2011

Buscant la resposta científica  a una noticia publicada fa uns dies sobre la possibilitat de que les plantes de marihuana pugueren  absorbir la radiciació (fitoextracció) nuclear dipositada en els sòls de Fukushima en el Japó i aconseguir així la seua eliminació, he trobat el resum d'un article científic que tracta sobre el tema (no sobre les plantes de marihuana especificament però si sobre altres).


hemosphere. 2000 Jul;41(1-2):121-8.

Soil contamination with radionuclides and potential remediation.

CRC for Molecular Plant Breeding, Department of Soil Science, The University of Adelaide, Glen Osmond, SA, Australia.

Abstract

Soils contaminated with radionuclides, particularly 137Cs and 90Sr, pose a long-term radiation hazard to human health through exposure via the foodchain and other pathways. Remediation of radionuclide-contaminated soils has become increasingly important. Removal of the contaminated surface soil (often up to 40 cm) or immobilization of radionuclides in soils by applying mineral and chemical amendments are physically difficult and not likely cost-effective in practicality. Reducing plant uptake of radionuclides, especially 137CS and 90Sr by competitive cations contained in chemical fertilizers has the general advantage in large scale, low-level contamination incidents on arable land, and has been widely practiced in central and Western Europe after the Chernobyl accident. Phytoextraction of radionuclides by specific plant species from contaminated sites has rapidly stimulated interest among industrialists as well as academics, and is considered to be a promising bio-remediation method. This paper examines the existing remediation approaches and discusses phytoextraction of radionuclides from contaminated soils in detail.
PMID: 10819188 [PubMed - indexed for MEDLINE]

 

 

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