BEO Moussala – A New Facility for Complex Environment Studies - Sustainable Development in Mountain Regions: Southeastern Europe - page 130

Fig. 11.5 O 3 trend (2006-2008) from BEO Moussala

11.2.3 BEO Moussala Aerosol Measurement and Devices

Scattering and backscattering coefficients of aerosols and aerosol size distribution
are measured by integrating Nephelometer and Scanning Mobility Particles Sizer
(SMPS).

11.2.3.1 Scanning Mobility Particles Sizer
SMPS is a spectrometric scanning measurement system for fine and ultrafine parti-
cles, which was put in operation in November 2008. The measurement range is from
10 nm to 1 m size (Fig. 11.6 ). Its sensitivity and measuring range allow measur-

ing of the most sensitive part of the atmospheric composition, subject to local and
distant pollutants.

µ

11.2.3.2 Nephelometer TSI3563

TSI3563 is a measurement device for scattering and backscattering coefficients of
ambient aerosols/pollutants. It was put in operation in March 2007. Light scattering
gives precise data for the amount of particulates/dust in the air. TSI 3563 is mea-
suring in three-wave lengths - 450 nm (blue), 550 nm (green), 700 nm (red), which
are sensitive to different particle size scattering and pollutants. The annual cycle of
aerosols in year 2009 is shown in the Fig. 11.7 .

11.2.4 System for Measurements of Radioactivity in Aerosols

The system includes an air turbine, a filter device, a press for preparing the sam-
ples for measurement, Ge-spectrometer and a programme for analysis of gamma