This work focuses on the development of a web application for real-time monitoring of air quality and weather conditions. Using cutting-edge technologies such as Next.js, Tailwind CSS, Shadcn, React Map GL, Google Charts, and D3.js, a tool has been created that allows users to get up-to-date information in a convenient way. The purpose of this work is to develop a web application that will provide real-time visualization of monitoring data. The application provides the ability to display data on the interactive map and interaction with them. The results of the study highlight the potential of web technologies in solving current problems and the importance of a scientific approach to the development of web applications. The developed tool can serve as a basis for further research in this area and contribute to increasing interest in the use of web technologies in monitoring and ecology.