Environmental monitoring system used for city air

The invention discloses an environmental monitoring system used for city air. The environmental monitoring system comprises client terminals, a server, a database and an environmental monitoring terminal. The client terminals are connected with the server through the Internet, the database is connected with the server, and the environmental monitoring terminal is connected with the server through a GSM wireless network. The server is used for storing received environmental data coming from the environmental monitoring terminal into the database and transmitting the data to the client terminals for user reference, and the client terminals are responsible for receiving and processing the environmental data transmitted by the server and have the local environmental information processing function, the graph displaying providing function, the data inquiring function and the data anomaly alarming function; the server comprises a real-time monitoring module, a data analysis module, a user interface module and a safety module. The safety module comprises a log management unit, an information noticing unit and a log-in verification unit. The aim of accurately and safely providing environmental monitoring in real time is achieved.