STUDY OF CONTAMINATION OF NATURAL AREAS OF THE CENTRAL BLACK EARTH REGION BY EGGS OF CESTODE S. ERINACEIEUROPAEI

Abstract

During 2019, we conducted research at the premises of the Kursk State University, on the natural territories of the Central Black Earth Region contaminated by eggs of cestode S. erinaceieuropaei. 2503 samples were studied in the Kursk, Belgorod, Voronezh, Lipetsk and Tambov Regions, of which 927 were flood and storm drains, 931 were soil from the habitats of definitive hosts, and 645 were samples of bottom sediments. Water sampling was carried out by a hydrobiological sampler-concentrator "ProboKonG" and was investigated in accordance with Methodical Instructions 4.2.1884-04 "Sanitary-microbiological and sanitary-parasitological analysis of water of surface water bodies". Analysis of soil samples and bottom sediments was performed according to Methodical Instructions 4.2.2661-10 "Methods for sanitary and parasitological research" by the method proposed by N.A. Romanenko. In the Kursk and Tambov Regions, the intensity of water contamination with the invasive material after rain was 5.9% and 6.5%, and the intensity was 4.7±0.4 and 6.6±1.1 specimens, respectively. The greatest rates of soil contamination intensity are as follows: the contamination intensity after rain was 14.5% in the Kursk Region, 10.2% in the Voronezh Region, and 14.5% in the Tambov Region. An average of 3 objects of the invasive material were found in 1 kg of bottom sediments in the Konyshevsky District of the Kursk Region.