Assessment and regulation of the quality of natural waters : criteria, methods, existing problems" is a unique teaching aid created by a team of authors, which will become an indispensable assistant for students, graduate students and specialists in the field of ecology, hydrology and environmental protection. In the face of global climate change and increasing pressure on water resources, this publication is more relevant than ever, offering readers a deep understanding of the problems associated with the quality of natural waters. The book addresses key aspects of water quality assessment and rationing, including modern criteria and analysis methods. The authors raise important issues relating to existing problems in this area, such as water pollution, the impact of anthropogenic activities on ecosystems and the need to develop effective water management strategies. The reader will be able to learn about different approaches to water quality assessment, including physico-chemical, biological and microbiological methods, as well as how these methods are applied in practice. Who can like this guide? It will be useful not only for students and teachers, but also for practicing environmentalists, engineers and government employees engaged in the protection of water resources . If you are interested in ecology, sustainable development or want to understand more about how water quality affects human health and ecosystems, this book will be a real discovery for you. It will also be of interest to those who are looking for solutions to current problems related to water pollution and the need to clean them. The topics raised in the book cover a wide range of issues, from theoretical foundations to practical recommendations. The authors emphasize the importance of an integrated approach to water quality assessment, which includes not only scientific methods, but also social aspects, such as interaction with local communities and taking into account their interests. This makes the book particularly valuable for professionals working in interdisciplinary teams. The style of the authors is clear and accessible, which allows the reader to easily assimilate complex scientific concepts. They use many examples and cases, which makes the material more visual and practical. In addition to this, the manual contains up-to-date data and research, which allows readers to keep abreast of the latest trends and achievements in the field of water quality assessment. If you are looking for literature that will help you understand the issues of ecology and environmental protection, then “Assessing and rationing the quality of natural waters” is exactly what you need. The book will be your reliable companion in the study of this important topic and will help you not only to gain knowledge, but also to put them into practice. Do not miss the opportunity to expand your horizons and deepen your understanding of how the quality of natural waters affects our lives and the future of the planet. In search queries, you can use phrases such as “water quality assessment”, “natural water rationing”, “water ecology”, “water analysis methods” and many others to find this book and immerse yourself in the world of knowledge it offers.