VDI 2119
Ambient air measurements - Sampling of atmospheric particles > 2,5 µm on an acceptor surface using the Sigma-2 passive sampler - Characterisation by optical microscopy and calculation of number settling rate and mass concentration
At a glance
- German title
-
Messen von Immissionen - Probenahme von atmosphärischen Partikeln > 2,5 µm auf einer Akzeptorfläche mit dem Passivsammler Sigma-2 - Lichtmikroskopische Charakterisierung sowie Berechnung der Anzahlsedimentationsrate und der Massenkonzentration
- Publication date
- 2013-06
- Publisher
- Engl. VDI/DIN-Kommission Reinhaltung der Luft (KRdL) - Normenausschuss
- Author
- Technical Division Environmental Measurement Technologies
- Related manuals
- Number of pages
- 62
- Available in
- German, English
- Abstract
-
Subject of the guideline is a passive sampling system for dust, where particles are collected by sedimentation in the almost wind-free interior of the sampling device. The guideline describes the sampling procedure on different collection plates, the subsequent analysis of single particles with optical microscopy, and the application of further analytical methods. The guideline particularly supplies technical guidance for the characterisation of particles with geometrical equivalent diameters greater that 2,5 µm, for the distinction of particle types (e.g. soil minerals, tyre abrasion, salts, pollen) and for the calculation of the particle mass concentration based on transmitted light microscopy data. Moreover it defines the requirements for additional chemical or mineralogical analyses (e.g. ion chromatography, ICP-MS). The scope of this procedure includes the assessment of the air quality in health resorts, the GMO pollen monitoring, the distinction between particles of natural or anthropogenic origin and the estimation of the particle burden in urban systems. The method presented is not suited to monitoring statutory air quality standards.