Viral Pollution of Coastal Waters Resulting from the Disposal of Untreated Sewage Effluents

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Abstract
The viral pollution of environmental waters results primarily from the discharge of domestic wastewaters which carry human enteric viruses. The present study examines the viral load of sewage effluents, before their treatment for virus removal, over a thirteen-month period. The maximum viral load detected during the study period was 880 viral cytopathic units per litre of sample. This was recorded in the month of November 1983. Out of 236 randomly selected field-isolates the following serotypes were distinguished as types: all three Polio, four Coxsackie B, three Echo and six Adeno. The serotypes with the highest frequency were Polio II, Coxsackie B4 and Adeno 7.

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