The book "Harmful chemicals . Radioactive substances", written by the author's team as part of Bazhenov V. A. , Buldakova L. A. and Vasilenko I . I. is an in-depth and comprehensive study of one of the most pressing topics of our time the effects of chemical and radioactive substances on human health and the environment. This work will become an indispensable source of knowledge for students, specialists in the field of ecology, medicine, chemistry, as well as for anyone interested in safety and environmental protection. The book examines various aspects of harmful chemicals, including their classification, sources, ways of getting into the body, as well as mechanisms of impact on health. The authors analyze in detail how chemicals used in industry, agriculture and everyday life can have a negative impact on human health, leading to various diseases and disorders. Particular attention is paid to radioactive substances, their properties and consequences of exposure to living organisms. The reader will learn about how radiation affects cells, what the long-term effects of radiation pollution are, and what precautions should be taken. The book will be of interest not only to professionals, but also to a wide audience. Students and graduate students studying ecology, chemistry, biology and medicine will find valuable information in it that will help them to better understand the complex processes occurring in nature and in the human body. People who care about their health and the health of their loved ones will be able to learn how to minimize the risks associated with exposure to harmful substances in everyday life. In addition, the book can be useful for environmentalists and activists working in the field of environmental protection, as it raises important questions about the need for control over the use of chemicals and radiation safety. The topics covered in the book are not only relevant, but also important for the formation of public consciousness. The authors emphasize the need to raise public awareness about harmful substances and their effects, which can contribute to a more responsible attitude to the environment and health. The book also raises questions about legislative initiatives and international standards aimed at protecting people and nature from the negative effects of the use of chemical and radioactive substances. The style of the authors is characterized by accessibility and clarity of presentation, which makes the material understandable even for those who do not have a special education in this field. They use many examples and illustrations, which allows readers to better assimilate information and see the practical application of theoretical knowledge. It is important to note that Bazhenov V. A. , Buldakov L. A. and Vasilenko I . I. are recognized experts in their fields, and their previous work has also been highly praised in academia. The book "Harmful chemicals . Radioactive substances” is not just a textbook, but an important contribution to understanding the complex processes taking place in our world. It will become a reference book for everyone who seeks to be aware of modern problems of ecology and health. If you’re looking for information on how chemicals and radioactive substances affect our lives and want to learn how to protect yourself and the environment, this book is exactly what you need.