correlation of air quality data to ultrafine particles (ufp) concentration and size distribution in ambient air空气质量数据的相关性(ufp)超细颗粒浓度和粒径分布在周围的空气中.pdfVIP

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correlation of air quality data to ultrafine particles (ufp) concentration and size distribution in ambient air空气质量数据的相关性(ufp)超细颗粒浓度和粒径分布在周围的空气中.pdf

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correlation of air quality data to ultrafine particles (ufp) concentration and size distribution in ambient air空气质量数据的相关性(ufp)超细颗粒浓度和粒径分布在周围的空气中

Atmosphere 2010, 1, 3-14; doi:10.3390/atmos1010003 OPEN ACCESS atmosphere ISSN 2073-4433 /journal/atmosphere Article Correlation of Air Quality Data to Ultrafine Particles (UFP) Concentration and Size Distribution in Ambient Air Felicitas Kwasny *, Pierre Madl and Werner Hofmann Division of Physics and Biophysics, Department of Materials Engineering and Physics, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria; E-Mails: pierre.madl@sbg.ac.at (P.M.); werner.hofmann@sbg.ac.at (W.H.) * Author to whom correspondence should be addressed; E-Mail: felicitas.kwasny@sbg.ac.at. Received: 13 May 2010; in revised form: 1 June 2010 / Accepted: 4 June 2010 / Published: 12 July 2010 Abstract: This study monitored ultrafine particles (UFP) concurrent with environmental air quality data, investigating whether already existing instrumentation used by environmental authorities can provide reference values for estimating UFP concentrations. Of particular interest was the relation of UFP to PM10 (particulate matter) and nitrogen oxides (NO , NO ) in ambient air. Existing PM measurement methods alone did not X 2 correspond exactly enough with the actual particle number, but we observed a link between NOx and NO2 to UFP concentration. The combined data could act as proxy- indicator for authorities in estimating particle number concentrations, but cannot replace UFP monitoring.