| Hazard sources | Description | Data source |
| Toxic Release Inventory (TRI) reporting facilities | Location of TRI sites and background information about the toxic emissions (i.e., quantity, carcinogenicity, etc.) | USEPA TRI Basic Plus Database |
| Rail yards | Railroad hubs are a major source of particulate matter pollution and represent a structural legacy. | US Department of Transportation on-line data portal |
| Asphalt plants | Communities were concerned by the numerous facilities producing and processing asphalt within residential zones. These facilities were de-listed from the TRI section 313 reporting program in 2002. They are still regulated by state and federal agencies and require a permitting. | Data provided by the Southwest Environmental Alliance. |
| Brownfields | Location of brownfields | US EPA’s “Cleanups In My Community” (CIMC) data set |
| Landscape burden | EB caused by the mere presence of industrial zones. State government tools do not show this major structural EB source because city governments control these data. | City of Chicago’s shape files |