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

被引：0
|
作者：
Bing-Mu Hsu
Chihpin Huang
Chih-Li Lilian Hsu
机构：
[1] Institute of Environmental Engineering,
[2] National Chiao Tung University,undefined
[3] 75 Po-Ai Street,undefined
[4] Hsinchu,undefined
[5] Taiwan,undefined
[6] ROC e-mail: cphuang@green.ev.nctu.edu.tw Fax: +886-3-5725958,undefined
[7] Department of Environmental Engineering and Health,undefined
[8] Yuanpei Technical College,undefined
[9] 306,undefined
[10] Yuanpei Street,undefined
[11] Hsinchu City,undefined
[12] Taiwan,undefined
[13] ROC,undefined
[14] Department of Parasitology,undefined
[15] National Cheng Kung University College of Medicine,undefined
[16] 1 Ta-Hsuen Road,undefined
[17] Tainan,undefined
[18] Taiwan,undefined
[19] ROC,undefined
来源：
Parasitology Research | 2001年 / 87卷
关键词：
Water Quality; Water Sample; Sampling Site; Risk Assessment; Water System;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：163 / 168
页数：5
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