Hydrobiological studies of aquatic ecosystems located in areas of municipal solid waste landfills

Studies of water bodies near MSW landfills are usually limited to hydrochemical parameters. However, since hydrochemical parameters are subject to frequent variability, and the negative effects of MSW landfills can occur over a long period of time, it is necessary to use the most "constant" indicators. It is proposed to expand the list of the studied parameters at the expense of hydrobiological ones, since hydrobionts are good bioindicators of the environment, and the use of various indices makes it possible to more accurately determine the nature and consequences of pollution by filtration waters of MSW landfills of water bodies. The article presents the results of a qualitative and quantitative study of zooplankton and zoobenthos from three water bodies (one background and two likely to be adversely affected) as part of the environmental monitoring of the impact of the Kaliningrad MSW landfill on aquatic ecosystems. The qualitative composition of zooplankton and zoobenthos revealed typical representatives for this area, mostly eutrophic organisms. An assessment of the contamination of the studied water bodies has also been carried out using the Pantle-Bucca method of indicator organisms modified by Sladechek, which is quite simple and often used in application. The calculations have made it possible to identify the state of aquatic ecosystems, in which water bodies retain high species diversity and biomass of zooplankton and zoobenthos. The studied water bodies, according to the gradation, can be characterized as "medium pollution". The most "polluted" is the nearest water body to the MSW landfill (a second-hand pond 400 m from the landfill), which is essentially a "buffer zone" between the MSW landfill and the Kaliningrad Bay. 

1. Galitskaya, I. V. Ammonium nitrogen in the filtrate of MSW landfills: formation, transformation, durability of pollution / I. V. Galitskaya, V. S. Putilina, N. I. Yuganova // Geoecology. Engineering geology, hydrogeology, geocryology. – – № 1. – P. 3–13.

2. Smetanin, V. I. Assessment of the negative impact of spent unauthorized spontaneous landfills and MSW "landfills" on the environment / V. I. Smetanin // Environmental management. – 2025. – № 2. – P. 68–76.

3. Minashkina, A. V. Development of a program for monitoring water bodies near the reclaimed MSW landfill in the village of A. Kosmodemyansky, Kaliningrad region / A. V. Minashkina, S. V. Kondratenko, E. A. Vorobyova // Hydrometeorology and Ecology. – 2021. – № 62. – P. 96–112.

4. Galitskaya, I. V. Assessment of the MSW landfill condition to substantiate monitoring studies in the post-rehabilitation period / I. V. Galitskaya, V. S. Putilina, I. A. Kostikova // Geoecology. Engineering geology, hydrogeology, geocryology. – 2022. - № 5. – P. 49–60.

5. Evgrafov, A.V. Assessment of the state of aquatic ecosystems in the zone of influence of four closed MSW landfills / A. V. Evgrafov, N. S. Kosov, N. V. Lagutina // Timiryazevsky Biological Journal. – 2024. – № 2. – P. 16–29.

6. Structural Organization of Zooplankton Communities in Different Types of River Mouth Areas / V. Zhikharev, D. Gavrilko, I. Kudrin [et al.] // Diversity. – 2023. – № 15. – P. 1–16.

7. Koveshnikov, M. Structure of Zoobenthos at Different Stages of Ecosystem Succession in Thermokarst Water Bodies of the Central Yamal Peninsula / M. Koveshnikov, E. Krylova // Inland Water Biology. – 2022. – № 15. – P. 603–612.

8. Kutikova, L. A. Determinant of freshwater invertebrates of the European part of the USSR / L. A. Kutikova. – Leningrad: Gidrometeoizdat, 1977. – 511 p.

9. Determinant of zooplankton and zoobenthos in fresh waters of European Russia: in 2 volumes / edited by V. R. Alekseev, S. Ya. Tsalolikhin. – Moscow: Collection of scientific publications of the KMC, 2010. – Vol. 1. – 495 p.

10. Determinant of freshwater invertebrates of Russia and adjacent territories: in 6 volumes / edited by S. Ya. Tsalolikhin. – Saint-Petersburg: Nauka Publ., 1995. – Vol. 2. – 627 p.

11. Kosov, N. S. Investigation of plankton and benthos during engineering and environmental surveys on the Likhoborka River in the area of the Dolgoprudny solid waste landfill / N. S. Kosov, A. V. Evgrafov // Engineering surveys in construction: proceedings of the VI All-Rus. scientif. and pract. conf. of young specialists (Moscow, April 25, 2024) / Institute of Geotechnics and Engineering Surveys in Construction, LLC. – Moscow: Geomarketing LLC, 2024. – P. 71–77.

12. Sytnik, N. A. Assessment of the impact on water bodies of the reclamation of the municipal solid waste landfill in Kerch, Republic of Crimea / N. A. Sytnik // Water: chemistry and ecology. – 2023. – № 10. – P. 59–65.

13. Khazipova, V. V. Assessment of the anthropogenic impact on the quality of the surface waters of the Kalmius River in the area of the industrial waste landfill / V. V. Khazipova, Yu.V. Mnuskina, A. V. Skochko // Fire and technosphere safety: problems and ways of improvement. – 2020. – № 3 (7). – P. 500–504.

14. Ponamarev, Yu. Y. Monitoring of the state of surface and groundwater in the area of the municipal solid waste landfill located in the village of Larino / Yu. Y. Ponamarev, V. V. Khazipova, M. B. Starostenko // Fire and technosphere safety: problems and ways of improvement. – 2019. – № 1 (2). – P. 227–233.

15. On the impact of landfills on surface and underground natural waters / S. S. Voronich, N. N. Roeva, D. A. Zaitsev [et al.] // Ecological systems and devices. – 2017. – № 5. – P. 16–24.

16. Sharova, O. A. Ecological hydrogeological monitoring of a solid household waste landfill / O. A. Sharova, L. F. Ushivtseva // Astrakhan Bulletin of Environmental Education. – 2018. – № 2 (44). – P. 118–125.