||Particulate Characteristics and Visual Effects of the Atmosphere at Research Triangle Park.
Conner, W. D. ;
Bennett, R. L. ;
Weathers, W. S. ;
Wilson, W. E. ;
||Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Atmospheric effects ;
Light scattering ;
Particle size distribution ;
Meteorological data ;
Atmospheric chemistry ;
Research Triangle Park(North Carolina)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||During a one-month period in the fall of 1987 a wide range in the visual quality of the atmosphere at Research Triangle Park, NC, was observed. During the period, the light scatter coefficient; SO2, NO2, and O3 concentrations; temperature; relative humidity; and radiation intensity of the atmosphere were continuously monitored. In addition, 60 filter samples were intermittently collected with two dichotomous (large and small particle) size-selective samplers. The dichotomous samplers were operated concurrently to obtain samples on Teflon and quartz filters for different analyses. Also collected were six impactor samples for sulfate size distribution analysis; and at selected times during the study, long-path measurements were made of the atmospheric extinction coefficient and the extinction of contrast by the atmosphere. (Copyright (c) 1991--Air & Waste Management Association.)
||Pub. in Jnl. of Air and Waste Management Association, v41 p154-160 1991.
|NTIS Title Notes
||Reprint: Particulate Characteristics and Visual Effects of the Atmosphere at Research Triangle Park.
||55E; 55C; 68A
||PC A02/MF A01