Real-time determination of absorptivity of ambient particles in urban aerosol in Budapest, Hungary

Attila Nagy, Aladár Czitrovszky, Attila Kerekes, Miklós Veres, Wladyslaw W. Szymanski

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The absorption properties of ambient urban aerosols as well as their size distributions were measured in real-time using a dual wavelength optical particle spectrometer (DWOPS). A photoacoustic spectrometer (PAS) was simultaneously used to directly measure light absorptivity of the particles in question along with an Aethalometer and a commercial optical particle counter (OPC). The sizing performance of the DWOPS was compared with the commercial OPC unit showing very good agreement. The data from DWOPS, PAS and Aethalometer instruments are presented and show the potential of the DWOPS technique for a direct and simple assessment of the absorbing part of the complex refractive index of ambient particles as a function of particle size.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalAerosol and Air Quality Research
Volume16
Issue number1
DOIs
Publication statusPublished - Jan 2016

Keywords

  • Atmospheric particles
  • Light absorption
  • Refractive index
  • Soot aerosol

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

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