Perm Medical JournalPerm Medical Journal0136-14492687-1408Eco-Vector5287610.17816/pmj381115-122Research ArticleSanitary and parasitologic state of environmental objects. Analysis of work of the center for hy-giene and epidemiology in astrakhan region for 2015–2019ArakelyanRudolf S.<p>Candidate of Medical Sciences, Associate Professor, Department of Infectious Diseases and Epidemiology</p>rudolf_astrakhan@rambler.ruhttps://orcid.org/0000-0001-7549-2925ShendoGennadiy L.<p>head doctor</p>rudolf_astrakhan@rambler.ruIrdeevaViktoria A.<p>clinical resident, Department of Infectious Diseases and Epidemiology</p>rudolf_astrakhan@rambler.ruhttps://orcid.org/0000-0003-2722-4074DeevaTatyana M.<p>Deputy Chairman of Students’ Scientific Society for Infectious and Parasitological Diseases, sixth-year student, Medical Faculty</p>rudolf_astrakhan@rambler.ruhttps://orcid.org/0000-0001-5474-0600GalkinaElizaveta V.<p>second-year student, Pharmacological Faculty</p>rudolf_astrakhan@rambler.ruAstrakhan State Medical UniversityCenter for Hygiene and Epidemiology in Astrakhan Region2201202138111512202122020Copyright © 2021, Arakelyan R.S., Shendo G.L., Irdeeva V.A., Deeva T.M., Galkina E.V.2021<p><strong>Objective.</strong> To study the sanitary and parasitologic state of environmental objects in Astrakhan Region for 20152019 at the example of studying the samples of soil, water and solid surface washes.</p>
<p><strong>Materials and methods.</strong> Over the period from 2015 to 2019, at the laboratory departments of The Center for Hygiene and Epidemiology in Astrakhan Region, 15253 samples from different environmental objects were taken, 21850 studies were carried out. The number of samples, which did not satisfy the hygienic norms, was 2.5 % (383 samples).</p>
<p><strong>Results.</strong> For the analyzed period, 4002 samples (26.2 %) of soil from the territory of Astrakhan and Astrakhan Region were taken and studied; 8004 investigations were performed. The number of samples, which did not satisfy the hygienic standards, was 7.5 % (300 samples). The number of samples of the washes from the solid surfaces was 56.7 % (8656 samples). Unsatisfactory samples made up 0.01 % (1 sample) in this sample, teniid oncospheres were detected (2019). The study of water samples taken from different water objects formed 17.0 % (2595 samples) out of the number of all sanitary and parasitologic studies carried out in 20152019. Water was taken from different sources of water supply including centralized water supply, water from swimming pools, water from open reservoirs and wastewater.</p>
<p><strong>Conclusions. </strong>The presence of moving larvae of palisade worms and toxocar eggs in the soil confirms the infested animal fecal contamination of this object, and the presence of ascarid, opisthorchis, Hymenolepis nana, teniid oncospheres eggs and dysentery amoeba cysts in the soil the infested human fecal contamination. The presence of teniid oncospheres in the solid indoor washes demonstrates the contact of the infested person with this object. The presence of helminth eggs and larvae, typical for animals and human being in the samples taken from the open reservoirs indicates, first of all, contamination of these objects by feces of infested human beings and/or animals as well as the supposed version of water contamination by wastewater. The presence of eggs and larvae of helminths in the wastewater, dangerous for animals and human beings, testifies to a low-quality work of treatment facilities.</p>environmental objectsparasitic seeding of soil, waterwastewaterpalisade wormstoxocarshelminth eggs and larvaepathogenic intestinal protozoan cystsобъекты окружающей средыпаразитарная обсемененность почвы, водысточная водастронгилидытоксокарыяйца и личинки гельминтовцисты патогенных кишечных простейших[Galimzyanov H.M., Lazareva E.N., Mirekina E.V. Modern aspects of the state of hemostasis in some arbovirus infections. Astrahanskij medicinskij zhurnal 2012; 7 (1): 27–31 (in Russian).][Karpenko S.F., Galimzyanov H.M., Kasimova N.B., Rubal'skij O.V., Mihajlovskaya T.I. Dynamics of clinical manifestations and catalase activity of blood serum in patients with coxiellosis under 50 years of age. Astrahanskij medicinskij zhurnal 2012; 7 (2): 64–68 (in Russian).][Kratenko I.S., CHegodajkina N.S., Pavlenko R.G. Sanitary and parasitological control of water supply in the Kharkov region. Aktual'nye problemy transportnoj mediciny 2008; 4 (14): 078–081 (in Russian).][MUK 4.2.2314-08 Methods of sanitary and parasitological analysis of water: metodicheskie ukazaniya. Moscow 2008 (in Russian).][MUK 4.2.2661-10. Control methods. Biological and microbiological factors. Methods of sanitary and parasitological analysis: metodicheskie ukazaniya. Moscow 2010 (in Russian).][Sarbasheva M.M., Bittirov A.M., Ardavova ZH.M., Aripsheva B.M. Improving the sanitary and parasitological state of environmental objects in the Kabardino-Balkarian Republic. Rossijskij parazitologicheskij zhurnal 2010; 4: 98–100 (in Russian).][Tverdohlebova T.I., Dimidova L.L., Hutoryanina I.V., CHernikova M.P., Dumbadze O.S., Kovalev E.V., Karpushchenko G.V., Nenadskaya S.A. Sanitary and parasitological monitoring of environmental objects of the Rostov region. Medicinskij vestnik YUga Rossii 2020; 11 (3): 79–83 (in Russian).]