Observational data set used in Anthropogenic amplification of biogenic secondary organic aerosol production

Observational data sets used in the manuscript Anthropogenic amplification of biogenic secondary organic aerosol production. The IMPROVE filter OA and sulfate data are available at http://views.cira.colostate.edu/iwdw/ (last access: July 13, 2020). The SEARCH dataset is from Dr. Eric Edgerton. The ACTRIS ACSM OA data are available at https://ebas-data.nilu.no/ (last access: November 30, 2021). The ARM ACSM OA data are available at https: //www.arm.gov/data/ (last access: July 8, 2020). The EPA’s AQS data are available at https://aqs.epa.gov (last access: May 25, 2022). All data sets have been averaged to monthly mean values.