Malm, William C., authorCooperative Institute for Research in the Atmosphere (Fort Collins, Colo.), publisher2023-07-102023-07-102000-05https://hdl.handle.net/10217/236747This report describes data collected by the Interagency Monitoring of Protected Visual Environments (IMPROVE) measurement program. IMPROVE is a cooperative visibility monitoring effort between the U.S. Environmental Protection Agency (EPA), federal land management agencies, and state air agencies.May 2000.born digitalreportsengCopyright 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 StatesAir -- Pollution -- United StatesAerosols -- Environmental aspects -- United StatesText