Atmospheric pollution real-time traceability and visual analysis method and system

The invention provides an atmospheric pollution real-time traceability and visual analysis method and system. The method comprises the following steps: S1, collecting basic information of a target area, and constructing a simulation grid in longitude and latitude directions according to the range of the target area; s2, simulating the pollution contribution rate of each pollution source point location to the simulation grid at a fixed time interval T by adopting a pre-constructed atmospheric pollution numerical model in combination with the basic information of the target area; s3, caching a simulation result of the atmospheric pollution numerical model in a data file form to form a cache file taking a simulation area number and a simulation moment as a path; s4, determining similar grid points according to the acceptor points in the traceability request, and performing traceability processing on the grid points to obtain a traceability result; and S5, performing visualization processing on the traceability r