Effect of irrigation water on the incidence of Salmonella spp. on lettuces produced by urban agriculture and sold on the markets in Dakar, Senegal
2011
Ndiaye, M.L. | Dieng, Y. | Niang, S. | Pfeifer, H.R. | Tonolla, M. | Peduzzi, R.
Results showed that lettuce may constitute effective vectors for the transmission of pathogens to consumers. Extensive treatment of the used wastewater and/or composting of manure could considerably reduce these risks. The aim of this survey is to assess the microbiological impact of irrigation water on lettuces produced on two urban agricultural sites and then sold in markets. Lettuces irrigated with shallow groundwater were more contaminated (8% at both Pikine and Patte d’Oie sites) compared to those irrigated with wastewater (4% at Pikine) or well water (5% at Patte d’Oie). The paper presents details of the study.
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