Bartosik Marta, Matuszewska Renata, Mąka Łukasz, Solecka Jolanta
Department of Environmental Health and Safety, National Institute of Public Health - National Institute of Hygiene - National Research Institute, Warsaw, Poland.
Ann Agric Environ Med. 2025 Jun 27;32(2):206-210. doi: 10.26444/aaem/192957. Epub 2024 Sep 23.
The use of Escherichia coli and enterococci as indicators of the presence of pathogenic viruses or parasitic protozoa is limited. In order to increase the control of enteric pathogens in drinking water, Directive (EU) 2020/2184 of the European Parliament and of the Council incorporates into microbiological analysis the determination of somatic coliphages as a new operational parameter in raw water for controlling the effectiveness of treatment processes. The goal was to assess the occurrence of somatic coliphages in raw water samples collected at groundwater and surface water intakes, and in treated water samples fed into the distribution system.
The study included 7 groundwater intakes and 6 surface water intakes at Water Treatment Stations. A total of 52 raw water samples and 40 treated water samples were assessed. Somatic coliphages were determined according to PN-EN ISO 10705-2 and PN-EN ISO 10705-3 (with modifications).
The results showed the presence of somatic coliphages in low numbers in 8% of water samples collected at groundwater intakes and in 89 % of samples collected at surface intakes. In 44 % of the water samples tested, the number of somatic coliphages was higher than 50 pfu/100 ml. Somatic coliphages were not detected in any of the treated water samples.
Somatic coliphages can be a useful operational monitoring parameter and a tool for strengthening the control of waterborne pathogens in assessing the effectiveness of water treatment processes. The implementation of somatic coliphage determination for water intakes where there is a risk associated with faecal contamination, should be part of ensuring adequate drinking water quality.
将大肠杆菌和肠球菌用作致病病毒或寄生原生动物存在指标的用途有限。为加强对饮用水中肠道病原体的控制，欧洲议会和理事会的指令（欧盟）2020/2184将体细胞噬菌体的测定纳入微生物分析，作为原水中控制处理过程有效性的一项新操作参数。目的是评估在地下水和地表水取水口采集的原水样本以及进入配水系统的处理水样本中体细胞噬菌体的出现情况。
该研究涵盖了7个水处理站的地下水取水口和6个地表水取水口。共评估了52个原水样本和40个处理水样本。根据PN - EN ISO 10705 - 2和PN - EN ISO 10705 - 3（有修改）测定体细胞噬菌体。
结果显示，在地下水取水口采集的8%的水样以及地表水取水口采集的89%的水样中存在少量体细胞噬菌体。在44%的测试水样中，体细胞噬菌体数量高于50 pfu/100 ml。在任何处理水样本中均未检测到体细胞噬菌体。
体细胞噬菌体可以作为一个有用的操作监测参数，以及在评估水处理过程有效性时加强对水源性病原体控制的工具。对于存在粪便污染风险的取水口，实施体细胞噬菌体测定应成为确保饮用水质量达标的一部分。
