2000 Annual Report | Surface Levels of Ultraviolet-B Radiation Under Variable Conditions of Tropospheric Air Quality And Cloudiness | Research Project Database | Grantee Research Project | ORD | US EPA

2000 Progress Report: Surface Levels of Ultraviolet-B Radiation Under Variable Conditions of Tropospheric Air Quality And CloudinessEPA Grant Number: R825248Title: Surface Levels of Ultraviolet-B Radiation Under Variable Conditions of Tropospheric Air Quality And CloudinessInvestigators: Saxena, Vinod K. , Frederick, JohnInstitution: North Carolina State University , University of ChicagoEPA Project Officer: Hahn, IntaekProject Period: October 1, 1996 through September 30, 1999Project Period Covered by this Report: October 1, 1999 through September 30, 2000Project Amount: $374,702RFA: Exploratory Research – Air Chemistry & Physics (1996) RFA Text |  Recipients ListsResearch Category: Air Quality and Air Toxics , Air , Safer ChemicalsObjective:Surface levels of ultraviolet-B (UV-B) radiation determine the safe duration of human exposure to direct solar radiation-the basis for estimating the UV-B index. The former is affected by tropospheric air quality and the cloud coverage conditions of the locality. The overall objective of the project is to provide a pilot database for interpreting the measurements of surface UV-B radiation under variable conditions of tropospheric air quality and cloud cover. The accomplishment of this objective will help answer the following question: How successfully can we detect a downward trend in stratospheric ozone by monitoring the surface UV-B irradiance from a network of ground-based stations in the United States? The database also will help refine the forecast of the UV-B Index.

2000 Annual Report | Surface Levels of Ultraviolet-B Radiation Under Variable Conditions of Tropospheric Air Quality And Cloudiness | Research Project Database | Grantee Research Project | ORD | US EPA