Industrial park atmospheric pollutant tracing method

The invention discloses an industrial park atmospheric pollutant tracing method, which comprises the steps of collecting site monitoring data in an industrial park in real time, which comprises detailed part stations, micro stations and meteorological stations, and dynamically performing standard exceeding judgment according to the monitoring data; comparing the standard exceeding factor with a pollutant characteristic factor fingerprint database of a park enterprise, and preliminarily screening a suspected pollution source; determining the pollution tracing time and interval according to themeteorological data and the park size, and dynamically calculating the contribution condition of the suspected source to the receptor point minute by minute by using a Lagrange model in the tracing time period; establishing a normalized distribution lag model in combination with enterprise online working condition information and enterprise discharge port online monitoring data, and further locking a pollution source; and