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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:09 |
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Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Nephelometer,an useful tool for short-or long-term atmospheric aerosol measurements
Authors:
Raluca Barladeanu, Sabina Stefan
Affiliation:
University of Bucharest, Faculty of Physics,P.O.BOX MG-11, Bucharest
E-mail
sabina_stefan@yahoo.com
Keywords:
Nephelometer,aerosol, particle size
Abstract:
The aim of this paper is to present the nephelometer as an very useful device for atmospheric studies.Nephelometer is designed specifically for studies of direct radiative forcing of the Earth`s climate by aerosol particles,or studies of ground-based or airborne atmospheric visual air quality.It may also be used as an analytical detector for aerosol particles whenever the parameter of interest is the light-scattering coefficient of the particles after a pretreatment step,such as heating,humidification,or segregation by size.The light-scattering coefficient is a higly variable aerosol property.Nephelometer measures the angular integral of light scattering that yields the quality called the scattering coefficient.Data obtained by using nephelometer must be validated to ensure that all reported measurements are accurate relative to the overall scope of the quality assurance program.Conseguently in this paper the data validation process based on specific criteria was applied on data sets to test the accuracy of the measurements.
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