Replication Data for: EPA Risk-Screening Environmental Indicators (RSEI) Census Crosswalks, current

Data for United States Environmental Protection Agency (EPA) Risk Screening Environmental Indicators (RSEI) model, with US decennial Census crosswalks 1990 - 2020. Original data were downloaded 25 July 2025 from https://gaftp.epa.gov/RSEI/Census_XWalks/ . Data dictionary included was copied and pasted from the data dictionary website (https://www.epa.gov/rsei/rsei-data-dictionary-census-crosswalks) into a Microsoft Word document, and is also included here. From the \"readme\", also included as a file in this archive: There is one crosswalk for each area and year for decennial Census years 1990, 2000, 2010). Note that the Northern Mariana Islands are in the Guam file and the Virgin Islands are in the Puerto Rico file. There are no crosswalks for Puerto Rico, the Virgin Islands, Mariana Islands, Guam, or American Samoa for 1990. For these areas, RSEI uses 2000 block boundaries and scales each cell's population by the overall ratio of 1990/2000 population for each area. For Census year 2020, there are additional crosswalks from grid to block group, census tract, and ZIP code. Field descriptions can be found in the RSEI Data Dictionary. https://www.epa.gov/rsei/rsei-data-dictionary-census-crosswalks