The book "Harmful chemicals . Radioactive substances” by Bazhenov B. A. It is an important and relevant work that immerses the reader in the world of dangerous chemical and radioactive substances, their effects on human health and the environment. This edition will be especially useful for students, specialists in the field of ecology, chemistry, medicine, as well as for anyone interested in safety and environmental protection. In this book, the authors consider in detail the various types of harmful chemicals, their sources, ways of influencing the body and methods of preventing negative consequences. The reader will be able to learn about how chemical compounds used in industry and everyday life can have toxic effects, as well as about how radioactive substances affect human health and the ecosystem as a whole. The book not only informs about the existing risks, but also offers practical recommendations to minimize the impact of these substances. One of the key themes of the book is the awareness of the importance of protecting the environment and human health. In today's world, where the chemicalization of everyday life is becoming more common, understanding the dangers associated with harmful substances is becoming especially relevant. The authors emphasize the need to take precautions and raise public awareness of potential threats. The book "Harmful chemicals . Radioactive substances" stands out for its scientific approach and accessible language of presentation. The authors, having rich experience in their field, strive to convey complex scientific concepts to a wide audience. This makes the book not only useful, but also fascinating to read. Readers will be able to find in it many examples from real life, which makes the material more visual and understandable. This book will be of interest not only to professionals, but also to a wide range of readers, including students, parents, environmentalists and everyone who cares about their health and the environment. It will be an indispensable tool for those who want to understand the issues of ecology, safety and health, as well as for those who seek a more conscious and safe lifestyle. The style of the author, as well as his previous works, is distinguished by the clarity and logic of the presentation .. Bazhenov V. A. He has already established himself as an author able to explain complex scientific topics, which makes his books in demand among readers seeking knowledge. Among his other well-known works are works on ecology and environmental protection, which emphasizes his expertise in this field. The book "Harmful chemicals . Radioactive substances” is not just a scientific work, but an important step towards realizing the responsibility of each of us for the state of the planet and the health of future generations. It inspires action and encourages reflection on how we can change our lives for the better, taking into account the impact of chemicals and radioactive substances on our environment. Reading this book will be a useful and informative experience for anyone who wants to be aware of modern environmental challenges and find ways to solve them.