The air quality monitoring system is an intelligent system for real - time monitoring of air quality conditions. It consists of multiple high - precision sensors that can accurately detect parameters in the air such as particulate matter, harmful gases, temperature, and humidity. The outer shell of the system is made of special materials that are water - proof, dust - proof, and corrosion - proof, enabling it to adapt to various complex environmental conditions. Its advantages are remarkable. It has real - time monitoring, data transmission, and remote control functions, allowing timely grasp of air quality changes and transmitting data to the management center through the network, providing a scientific basis for environmental management and decision - making. It is widely used in places such as urban environmental monitoring, industrial parks, and transportation hubs. In urban environmental monitoring, it helps create a livable city; in industrial parks, it monitors the impact of enterprise emissions on the surrounding air; in transportation hubs, it focuses on the changes in air quality caused by vehicle exhaust emissions.