Literature

Literature

1. V. V. Kungurtseva, E. L. Kuznetsova. Sanitary and hygienic assessment of the waters of the river " Sylva" of the Perm region. Collection of articles " Problems and ways of development of veterinary and zootechnical sciences" Saratov, 2021, pp. 741-743. [1]

2. K. A. Gorbunova. Features of gypsum karst. Perm book edition, Perm 1965 [2]

3. N. N. Pankov. Structural and functional characteristics of zoobenthocenoses in the Sylva River (Kama basin). Perm 2004 [3]

4. SanPiN 2. 1. 5. 980-00. Sanitation of populated areas, sanitary protection of water bodies. Hygienic requirements for the protection of surface waters. Sanitary rules and regulations. Approved on 13. 12. 2016 [4]

5. SanPiN 2. 1. 4. 1116-02. Drinking water. Hygienic requirements for the water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems. Approved on July 1, 2002 - Item 3. 4. 3. [5]

6. SanPiN 1. 2. 3685-21 " Hygienic standards and requirements for ensuring the safety and (or) harmlessness of environmental factors for humans". Approved on 29. 01. 2021 [6]

7. S. S. Izkeev, A. R. Sibirkina. Physico-chemical analysis of drinking water in the village of Novoorsk. Journal " Bulletin of Science and Practice" Chelyabinsk, 2016. [7]

8. URL: https: //www. who. int/water_sanitation_health/publications/gdwq4-rus-chapter12. pdf? ua=1(accessed 07. 11. 21). [8]

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