The book "Calculation of harmful substances in the air of the working zone" by B. P. Sivkova is an indispensable work for all those who are interested in labor protection, ecology and safety at work . In today's world, where concern for workers' health and the ecosystem is becoming more urgent, this publication offers in-depth analysis and practical recommendations for assessing and controlling air pollution in the workplace. In. P. Sivkov, a well-known specialist in the field of labor protection and ecology, in his book offers readers a unique approach to calculating the intake of harmful substances into the air. The author not only outlines theoretical aspects, but also shares practical methods that will help industrial safety specialists, environmentalists and business leaders to effectively assess risks and develop strategies to minimize them. The book will become a useful tool for students and teachers of specialized educational institutions, as well as for practitioners seeking to improve working conditions and reduce the negative impact on the environment. The main theme of the book is the analysis of air pollution sources at production sites and methods of their control. Sivkov examines various aspects, such as the physicochemical properties of harmful substances, their behavior in the air and the impact on human health. The reader will be able to learn about modern methods of monitoring, as well as about the legislative requirements relating to labor protection and the environment. In the book, examples of calculation are analyzed in detail, which makes the material accessible to understanding even for those who do not have deep knowledge in this field. The book "Calculation of harmful substances in the air of the working area" will be of interest not only to professionals, but also to a wide range of readers interested in environmental and safety issues . It is suitable for both students and experienced professionals working in the field of labor protection, ecology, as well as for managers seeking to create a safe environment in their enterprises. If you are looking for information on how to protect your employees from harmful effects, or want to learn more about modern methods of risk assessment, this publication will be a real discovery for you. The author's style is distinguished by clarity and accessibility of presentation, which makes it easy to assimilate even the most complex concepts. Sivkov uses many examples and illustrations, which makes the material more clear and understandable. His previous works, such as “Labour Protection in the Context of Modern Production” and “Environmental Aspects of Industrial Safety”, have also been recognized and praised by readers for their practical focus and relevance. The book raises important topics such as employers' responsibility for the health of their workers, the impact of pollution on the environment, and the need to introduce modern technologies for monitoring and control. With a growing focus on environmental issues and public health, this publication is becoming not only relevant, but also necessary for everyone who wants to contribute to the creation of a safe and healthy working environment. Thus, “Calculation of harmful substances in the air of the working area” is not just a book, but a guide to the complex but important world of labor protection and ecology. It inspires action and helps to understand how to improve working conditions and protect people’s health. If you want to be aware of current trends in the field of labor protection and ecology, this book will become your reliable assistant and a source of valuable information.