Source apportionment of size and time resolved trace elements and organic aerosols from an urban courtyard site in Switzerland
- Richard, A.
- Gianini, M.F.D.
- Mohr, C.
- Furger, M.
- Bukowiecki, N.
- Minguillón, María Cruz
- Lienemann, P.
- Flechsig, U.
- Appel, K.
- DeCarlo, P.F.
- Heringa, M.F.
- Chirico, R.
- Baltensperger, U.
- Prévôt, André S. H.
DOIAbstract
Time and size resolved data of trace elements were obtained from measurements with a rotating drum impactor (RDI) and subsequent X-ray fluorescence spectrometry. Trace elements can act as indicators for the identification of sources of particulate matter <10 μm (PM10) in ambient air. Receptor modeling was performed with positive matrix factorization (PMF) for trace element data from an urban background site in Zürich, Switzerland. Eight different sources were identified for the three examined size ranges (PM1-0.1, PM2.5-1 and PM 10-2.5): secondary sulfate, wood combustion, fire works, road traffic, mineral dust, de-icing salt, industrial and local anthropogenic activities. The major component was secondary sulfate for the smallest size rang...
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