| Pollution source type | Sub-type | Data source & processing |
| Industrial sources | Key industrial enterprises and non-key industrial sources | Beijing’s Environmental Statistics Handbook in 2013 |
| Agricultural sources | Planting, livestock and poultry breeding and aquaculture | |
| Life sources | Sewage treatment plants and landfill sites | |
| Domestic sewage without treatment | Beijing Statistics Information Network; pollutant excretion coefficient method | |
| Urban runoff pollution | Road, square, parking lot, roof, woodland and grassland | On-site monitoring, Beijing landuse data in 2013; modified Johnes’s export coefficient method |