Abstract:In the period of severe haze, some governments will ask polluting enterprises to shut down to reduce pollutant emissions. In order to pursue economic benefits, some polluting enterprises still violate the regulations during the period of being shut down and their production behaviors have a high degree of concealment. It is difficult for environmental protection departments to determine whether there are irregular production activities or not, and at the same time, it is impossible to accurately determine the production period of irregular production activities. This problem has seriously hindered the development of environmental protection supervision work. To solve the problem, this paper proposes a method for monitoring illegal production of polluting enterprises. Based on the daily consumption and maximum daily load of polluted enterprises, the method realizes the judgment of irregular production behavior of polluted enterprises. In addition, based on the load data of the polluted enterprises, the method realizes the classification of the production period of the polluted enterprises. This method provides an effective technical means for the relevant departments to accurately grasp the production law of pollution enterprises. In this paper, the algorithm is verified by historical data, and the results show that the algorithm is effective and feasible.