Atmosphere odor pollution tracing system and application

The invention relates to an atmosphere odor pollution tracing system based on an odor fingerprint spectrum and similarity analysis. The system comprises an information management system, a fingerprintspectrum system, a tracing model system and a result demonstration system. The system comprises steps of pollution source information management, odor pollution information management, odor fingerprint spectrum establishment, similarity calculation of the tracing model system, and tracing result display. According to the system provided by the invention, on the basis of information management system collection, stored pollution source discharge and environment odor gas related data, environment and pollution source odor fingerprint spectrums are established through the fingerprint spectrum system, similarity coefficients of the environment and pollution source odor fingerprint spectrums are calculated through the tracing model system on the basis of an included angle cosine method, the similarity of the environme