AN INVESTIGATION OF THE TEMPORAL VARIATION OF MUTAGENIC ACTIVITY IN
Report No DWI0310
Drinking water samples were collected each month for a period of one year from one lowland river, water treatment works. Each sample was concentrated by freeze-drying and extracts were tested for mutagenicity in the bacterial fluctuation assay. The study revealed significant variations in the mutagenic potency of samples but there was no obvious seasonal pattern.
Several other parameters, including chlorine dose, were also measured but there were no correlations with variation in mutagenicity.
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