IMPROVE Aerosol Data for Review

The following data files contain the latest IMPROVE aerosol data.  These data have passed the Level 0 and Level 1 quality assurance and control procedure conducted by the Crocker Nuclear Laboratory at UC Davis.  These data are added to the online database after a 30 day period to allow the States, Tribes, FLM’s or any other organization a chance to review and comment on the accuracy, credibility, and/or representativeness of aerosol speciation data collected and the reconciliation of any issues these organizations may find.

The procedures for the release of IMPROVE data is more fully described in the IMPROVE Policy for Review and Dissemination of Aerosol Data.

The metadata describing the site locations, parameters, flags and methods of collection can be found from the IMPROVE aerosol data resource page.

The Preliminary IMPROVE data are now only available from the Query Wizard.  To access these data go to the query wizard page and select the network: "IMPROVE Aerosol (Preliminary - DRAFT) "