Sanitary-parasitological status of Lena river within the city Yakutsk
The purpose of the research: to evaluate the sanitary-parasitological status of urban waste water and the effectiveness of its disinvasion at the station of biological elimination of Yakutsk. Materials and methods. Taking of water samples and their sanitary-parasitological research have run in compl...
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| Format: | Article |
| Language: | Russian |
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Federal Scientific Centre VIEV
2019-10-01
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| Series: | Российский паразитологический журнал |
| Subjects: | |
| Online Access: | https://vniigis.elpub.ru/jour/article/view/492 |
| _version_ | 1826570089627910144 |
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| author | N. Ch. Tonoeva E. A. Udaltsov E. A. Efremova |
| author_facet | N. Ch. Tonoeva E. A. Udaltsov E. A. Efremova |
| author_sort | N. Ch. Tonoeva |
| collection | DOAJ |
| description | The purpose of the research: to evaluate the sanitary-parasitological status of urban waste water and the effectiveness of its disinvasion at the station of biological elimination of Yakutsk. Materials and methods. Taking of water samples and their sanitary-parasitological research have run in compliance to generally accepted in parasitology methods and confirmed statutory documents. For evaluation of the epidemical situation on tapeworm disease morbidity parameters were used, long-time average annual morbidity parameter. Results and discussion. Evaluation of parasitological pollution of sewer waste water in Yakutsk has shown that in water samples taken before clean-up as well as dregs from degritter ascaride and difillobotriida eggs were registered in 100 % cases. Ascaride and difillobotriida eggs were educed after mechanical treatment and in dregs from n-filter in 100% and 80% respectively, and also after repeated mechanical treatment and bio-treatment of water by active sludge in 33% and 17% specimens respectively. Sound eggs of ascariasis and diphyllobothriasis germs were founded in 18% and 9% water specimens respectively post-run ultraviolet irradiation. Eggs of enterobiasis germ were founded in 17% specimens of waste water. Mechanical treatment and bio-treatment cut a share of positive specimen to 8%. Seat worm’s eggs haven’t found in water samples after ultraviolet irradiation of drains. During all period of research taeniidae’s hexacanths and whipworm’s eggs haven’t found. Disinvasion methods, applied at sewage treatment facilities of Yakutsk, don’t guarantee the germs eradication of parasitic disease and don’t warrant epidemiological water safety as for ascaride and difillobotriida germs. Public utility drains, polluted by propagative forms of bio- and soil-transmitted helminth, are among of factors conditioning negative sanitary-parasitological situation of Lena river, having detrimental effect on ecological and epidemiological situation upon parasitic disease in the region. |
| first_indexed | 2024-03-08T21:41:42Z |
| format | Article |
| id | doaj.art-00f29999e3684585857480a0e6af547d |
| institution | Directory Open Access Journal |
| issn | 1998-8435 2541-7843 |
| language | Russian |
| last_indexed | 2025-03-14T11:49:41Z |
| publishDate | 2019-10-01 |
| publisher | Federal Scientific Centre VIEV |
| record_format | Article |
| series | Российский паразитологический журнал |
| spelling | doaj.art-00f29999e3684585857480a0e6af547d2025-03-02T09:49:52ZrusFederal Scientific Centre VIEVРоссийский паразитологический журнал1998-84352541-78432019-10-01122384510.31016/1998-8435-2018-12-2-38-45489Sanitary-parasitological status of Lena river within the city YakutskN. Ch. Tonoeva0E. A. Udaltsov1E. A. Efremova2Novosibirsk State Technical UniversityNovosibirsk State Technical University; Institute of Experimental Veterinary Medicine in Siberia and Far East Siberian Federal Research Center of agrobiotechnology RASInstitute of Experimental Veterinary Medicine in Siberia and Far East Siberian Federal Research Center of agrobiotechnology RASThe purpose of the research: to evaluate the sanitary-parasitological status of urban waste water and the effectiveness of its disinvasion at the station of biological elimination of Yakutsk. Materials and methods. Taking of water samples and their sanitary-parasitological research have run in compliance to generally accepted in parasitology methods and confirmed statutory documents. For evaluation of the epidemical situation on tapeworm disease morbidity parameters were used, long-time average annual morbidity parameter. Results and discussion. Evaluation of parasitological pollution of sewer waste water in Yakutsk has shown that in water samples taken before clean-up as well as dregs from degritter ascaride and difillobotriida eggs were registered in 100 % cases. Ascaride and difillobotriida eggs were educed after mechanical treatment and in dregs from n-filter in 100% and 80% respectively, and also after repeated mechanical treatment and bio-treatment of water by active sludge in 33% and 17% specimens respectively. Sound eggs of ascariasis and diphyllobothriasis germs were founded in 18% and 9% water specimens respectively post-run ultraviolet irradiation. Eggs of enterobiasis germ were founded in 17% specimens of waste water. Mechanical treatment and bio-treatment cut a share of positive specimen to 8%. Seat worm’s eggs haven’t found in water samples after ultraviolet irradiation of drains. During all period of research taeniidae’s hexacanths and whipworm’s eggs haven’t found. Disinvasion methods, applied at sewage treatment facilities of Yakutsk, don’t guarantee the germs eradication of parasitic disease and don’t warrant epidemiological water safety as for ascaride and difillobotriida germs. Public utility drains, polluted by propagative forms of bio- and soil-transmitted helminth, are among of factors conditioning negative sanitary-parasitological situation of Lena river, having detrimental effect on ecological and epidemiological situation upon parasitic disease in the region.https://vniigis.elpub.ru/jour/article/view/492гельминтыдифиллоботриозриск зараженияобсеменениеобъекты окружающей средысанитарно-паразитологический мониторингсточные водыкачество водыhelminthstapeworm diseaserisk of infectionsemenationnatural environment locationsanitary-parasitological monitoringwaste waterquality of water |
| spellingShingle | N. Ch. Tonoeva E. A. Udaltsov E. A. Efremova Sanitary-parasitological status of Lena river within the city Yakutsk Российский паразитологический журнал гельминты дифиллоботриоз риск заражения обсеменение объекты окружающей среды санитарно-паразитологический мониторинг сточные воды качество воды helminths tapeworm disease risk of infection semenation natural environment location sanitary-parasitological monitoring waste water quality of water |
| title | Sanitary-parasitological status of Lena river within the city Yakutsk |
| title_full | Sanitary-parasitological status of Lena river within the city Yakutsk |
| title_fullStr | Sanitary-parasitological status of Lena river within the city Yakutsk |
| title_full_unstemmed | Sanitary-parasitological status of Lena river within the city Yakutsk |
| title_short | Sanitary-parasitological status of Lena river within the city Yakutsk |
| title_sort | sanitary parasitological status of lena river within the city yakutsk |
| topic | гельминты дифиллоботриоз риск заражения обсеменение объекты окружающей среды санитарно-паразитологический мониторинг сточные воды качество воды helminths tapeworm disease risk of infection semenation natural environment location sanitary-parasitological monitoring waste water quality of water |
| url | https://vniigis.elpub.ru/jour/article/view/492 |
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