Abstract
The aim of the present study was to investigate water supplies in southern Russia and Bulgaria, in order to estimate the occurrence of Giardia and Cryptosporidium in drinking water resources from these countries. A total of 166 water samples of different origin (surface, tap, bottled, well, spring and waste water) were collected from Rostov (southern Russia), Sofia and Varna (Bulgaria) Greater Areas and screened for the detection of Giardia cysts and Cryptosporidium oocysts. The method incorporated concentration of water samples by filtration and flocculation, sucrose purification, (oo)cyst detection/identification by immunofluorescence test and differential interference contrast. Sixteen out of 166 samples (9.6%) were positive for Giardia and 30 (18.1%) positive for Cryptosporidium. Both Giardia and Cryptosporidium were detected in tap, river, well and waste waters. Giardia cysts were additionally detected in bottled water. Particularly some river, waste and well water samples were highly contaminated with (oo)cysts. This study has shown that drinking water supplies in Russia and Bulgaria are subject to contamination with Giardia and Cryptosporidium, with potential hazards for the public health.
| Original language | English |
|---|---|
| Pages (from-to) | 260-271 |
| Number of pages | 12 |
| Journal | Environmental Research |
| Volume | 102 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Nov 2006 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Bulgaria
- Cryptosporidium
- Giardia
- Russia
- Water sources
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