Objectives To investigate the contamination of Cryptosporidium and Giardia in source water and drinking-water in Jiangsu Province to provide scientific bases for the safety of water quality.
Methods Filta-Max Xprss method was used for detecting Giardia cysts and Cryptosporidium oocysts in water; and the general information of the source water, treated water and peripheral water of central water supplies were surveyed.
Results Seven samples were positive in 222 samples detected for Cryptosporidium and Giardia in water, and the positive rate were 0.5% and 2.7% respectively.
Conclusions The positive rate of Cryptosporidium and Giardia in water in this study was loentral ww in comparison with other studies. Protecting water sources and monitoring the treatment process in cater supplies should be strengthened and improved, especially for small central water supplies.
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