Analysis for Giardia cysts and Cryptosporidium oocysts in water samples from small water systems in Taiwan View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-01

AUTHORS

Bing-Mu Hsu, Chihpin Huang, Chih-Li Lilian Hsu

ABSTRACT

Giardia and Cryptosporidium have emerged as waterborne pathogens of concern. Twenty-six water samples were collected from small water systems in Taiwan and checked for the occurrence of both parasites. Water quality parameters and characteristics of the sampling sites were also recorded. The frequencies of occurrence for Giardia and Cryptosporidium were 46.2% for each; and their mean concentrations were 79.5 cysts/100 l and 22.1 oocysts/100 l, respectively. The concentrations of oocysts and heterotrophic bacteria exhibited the highest correlation and followed the concentrations of the two protozoa. The water samples from sites with filtration devices had a lower oocyst concentration than those from sites without filtration devices, while no significant difference was found for cysts. The level of each parasite had no direct relationship with altitude. The cyst concentrations increased proportionally with the consumer population using the water systems. Risk assessment of the parasitic infections suggests that setting up disinfection devices in the small water systems would be needed. More... »

PAGES

163-168

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/pl00008570

DOI

http://dx.doi.org/10.1007/pl00008570

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1005396619

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/11206115


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