Sisler, James F., authorMalm, William C., authorGebhart, Kristi A., authorCooperative Institute for Research in the Atmosphere (Fort Collins, Colo.), publisher2022-08-022022-08-021996-07https://hdl.handle.net/10217/235499July 1996.Principal investigators: William C. Malm, Marc L. Pitchford.This report describes data for the three year period, March 1992 through February 1995, of the Interagency Monitoring of Protected Visual Environments (IMPROVE) measurement program. IMPROVE is a cooperative visibility monitoring effort between the United States Environmental Protection Agency, (EPA) federal land management agencies, and state air agencies.reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Haze -- United StatesAerosols -- Environmental aspects -- United StatesAir -- Pollution -- United StateText