Anthropogenic Viral Load on the Sources of Water in Kryvyi Rig
The aim of the study was to determine the hepatropic viruses load on the natural sources of wastewater use of the industrial region. Methods. We investigated open water samples from places of water intake, which is later purified and used in consumer’s drinking purposes; river water samples in resting places and samples of sewage from discharge to the environment places. We used EUSA method using sets of reagents for the detection of antigen of hepatitis A virus (HAV) HAV-antigen ELISA-Best (Russia), devices for the automatic washing of microplates and automatic record of the results using the immunoassay analyzer StatFax303 (Awareness Technology Inc., USA). Results. During 2000–2015 three peaks of the indication of HAV antigens’ rise in river water and sewage samples were noted. In 2002–2003 in average 34.4 and 32.3 % of the sewage and river water samples were positive, in 2008 26.7 and 27.1 %, respectively. The third peak of HAV antigen detection in open water was observed in 2012, only 17.8 %. Wastewater has been losing viral antigens since 2008, in fact to 0 % in 2013–2014. Conclusions. Aquatic ecosystem pollution by biological components occurs despite of primary treatment of wastewater. Drinking water contamination, which is used in everyday life, probably can be linked to an unsatisfactory condition of pipelines and laying of sewage supply.
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