Contamination of Lettuce Irrigated with Sewage Effluent |
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| Authors: | A. Agnes Nichols A. Pamela Davies P. Katherine King E.J. Winter F. Lucy C. Blackwall |
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| Affiliation: | 1. National Agricultural Advisory Service, “Woodthorne”, Wolverhampton, Staffordshire;2. Irrigation Section, National Vegetable Research Station, Wellesbourne, Warwick |
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| Abstract: | Faecal contamination on lettuce growing in the open as indicated by the presence of Escherichia coli I was demonstrated for up to 21 days after irrigation with sewage effluent, although the level of contamination usually decreased after 3–7 days. Recovery of other coliform bacteria gave parallel results ; counts of these organisms and of other bacteria also indicated the persistence of more general pollution. |
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