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| Forslund, Anita; Plauborg, Finn; Andersen, Mathias N.; Markussen, Bo; Dalsgaard, Anders. |
| The risk for contamination of potatoes and groundwater through subsurface drip irrigation with low quality water was explored in 30 large-scale lysimeters containing repacked coarse sand and sandy loam soils. The human pathogens, Salmonella Senftenberg, Campylobacter jejuni and E. coli O157:H7, and the virus indicator Salmonella Typhimurium bacteriophage 28B, were added weekly through irrigation tubes for one month with low irrigation rates (8 mm per week). In the following six months lysimeters were irrigated with groundwater free of pathogens. Two weeks after irrigation was started, phage 28B was detected in low concentrations (2 pfu ml-1) in leachate from both sandy loam soil and coarse sand lysimeters. After 27 days, phage 28B continued to be present... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Irrigation and drainage. |
| Ano: 2011 |
URL: http://orgprints.org/18743/4/18743.pdf |
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| Forslund, Anita; Markussen, Bo; Toenner-Klank, Lise; Bech, Tina B.; Jacobsen, Ole Stig; Dalsgaard, Anders. |
| Increasing amounts of livestock manure are being applied to agricultural soil, but it is unknown to what extent this may be associated with contamination of aquatic recipients and groundwater if microorganisms are transported through the soil under natural weather conditions. The objective of this study was therefore to evaluate how injection and surface application of pig slurry on intact sandy clay loam soil cores influenced the leaching of Salmonella enterica serovar Typhimurium bacteriophage 28B, Escherichia coli, and Cryptosporidium parvum oocysts. All three microbial tracers were detected in the leachate on day 1, and the highest relative concentration was detected on the fourth day (0.1 pore volume). Although the concentration of the phage 28B... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Air and water emissions Irrigation and drainage. |
| Ano: 2011 |
URL: http://orgprints.org/20435/4/20435.pdf |
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