In 2019, we cooperated with the Institute of Atmospheric Physics of Chinese Academy of Sciences, and participated in the atmospheric environment monitoring project of Iron and Steel plant in Rizhao Lanshan District of Shandong Province. In the plant area, reasonable distribution of points (both horizontal space and gradient space, the highest point is close to 100 meters above the ground), monitoring workshop emissions, high-altitude misty rain emissions, and the impact of coastal environment on pollution diffusion under different meteorological conditions (temperature, humidity, atmospheric pressure, wind speed and direction). The main monitoring (PM2.5, PM10, SO2, Co, NO, NO2, O3) was mainly monitored. The monitoring was supported by Rizhao Iron and Steel, Shandong Iron and steel, Guangxin chemical and other surrounding enterprises. It provides better data support for the planning and treatment of plant pollution.