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The use of faecal bacteria as a tracer for sewage sludge disposal in the sea |
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| Authors: | P A Ayres |
| Institution: | Ministry of Agriculture, Fisheries and Food, Fisheries Laboratory, Burnham-on-Crouch, Essex, U.K. |
| Abstract: | Samples of bottom sediment taken in an area used for marine dumping of sewage sludge were examined for the presence of Escherichia coli and coliform bacteria. Using a simple membrane filtration technique, an extensive network of stations was sampled and examined at sea in under two days. The results obtained were in good agreement with seabed drifter and radioactive tracer studies, and suggest that the use of bacterial indices may be a useful means of estimating the distribution of sewage sludge solids in bottom sediments. |
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