Abstract:Urban sewage contains various pathogenic microorganisms. As the infrastructure of sewage transportation and treatment, the detection, monitoring and health risk assessment of microbial aerosols in urban drainage system are of great significance. This paper summarizes the detection steps and methods of microbial aerosol in drainage system (sampling point selection enrichment technology detection and monitoring technology), health risk assessment methods and control strategies. As a technical summary, this paper can provide a method reference for the detection, monitoring and risk assessment of microbial aerosols in urban drainage system.