The Fused Air Quality Surface Using Downscaling (FAQSD) Files is derived from data on Ozone (O3) and Particulate Matter 2.5 (PM2.5). The data provides predictions for national-scale annual average concentration of O3 (μg/m3) and PM2.5 (μg/m3) in the United States using monitoring data and Community Multiscale Air Quality (CMAQ) output.

Data Summary

Dataset Name: Fused Air Quality Surface Using Downscaling (FAQSD) Files
Data Source: United States Environmental Protection Agency (EPA)
Years: All data contains measures between 2002 and 2016
Geographies: Census Tract

O3 Suggested Citation:
Jennifer Ailshire and Hyewon Kang. 2020. United States Environmental Protection Agency Ozone FAQSD Files by Census Tract, 2002-2016, Version 2.0. Los Angeles, CA: USC/UCLA Center on Biodemography and Population Health.

PM2.5 Suggested Citation:
Jennifer Ailshire and Hyewon Kang. 2020. Contextual Data Resource (CDR): United States Environmental Protection Agency Particulate Matter 2.5 FAQSD Files by Census Tract, 2002- 2016, Version 2.0. Los Angeles, CA: USC/UCLA Center on Biodemography and Population Health.

  1.  Ailshire, Jennifer and Katrina M. Walsemann. (2021) “Education Differences in the Adverse Impact of PM2.5 on Incident Cognitive Impairment Among U.S. Older Adults”. Journal of Alzheimer’s Disease 79(2):615-625. doi:10.3233/JAD-200765
  2. Yannatos I, Stites S, Brown RT, McMillan CT (2023) Contributions of neighborhood social environment and air pollution exposure to Black-White disparities in epigenetic aging. PLoS ONE 18(7): e0287112. https://doi-org.libproxy2.usc.edu/10.1371/journal.pone.0287112
  3. Courtney, M.G., Roberts, J. & Godde, K. (2022) How social/environmental determinants and inflammation affect salivary telomere length among middle-older adults in the health and retirement study. Sci Rep 12, 8882. https://doi-org.libproxy2.usc.edu/10.1038/s41598-022-12742-z

Data Sources

United States Environmental Protection Agency (EPA). RSIG and FAQSD Files, https://www.epa.gov/hesc/rsig-related-downloadable-data-files.