Occurrence of Cryptosporidium oocysts and Giardia cysts in raw waters in Norway.

Abstract

AIMS This paper reports the first investigation into the occurrence of Cryptosporidium and Giardia in Norwegian raw water sources. METHODS Between June 1998 and October 1999, 408 raw water samples, collected from 147 different sites across Norway, were analysed for these parasites. Analysis was based upon US EPA Method 1623. RESULTS In 305 samples (75… (More)

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