Meteorological Interpretation Of Measured
Urban PM 2.5 And PM 10 Concentrations In The
Helsinki Metropolitan Area
Author(s)
M. Pohjola, A. Kousa, P. Aarnio, T. Koskentalo, J. Kukkonen,
J. Harkonen & A. Karppinen
Abstract
Meteorological interpretation of measured
urban PM, _ and PM,_ conce
£*^ AU
Helsinki Metropolitan Area
urban PM, _ and PM,_ concentrations in the
£*^ AU
M. Pohjola^, A. Kousa\ P. Aarnio\ T. Koskentalo\ J. KukkonenJ. Harkonen^ & A. Karppinen^
^Helsinki Metropolitan Area Council, Finland
^Finnish Meteorological Institute, Air Quality Research, Finland
Abstract
We have analysed PM]5 and PMio concentrations, determined at the urban air
quality measurement network in the Helsinki Metropolitan Area during 1997 -
1998. The data includes PIVbs concentrations measured at two locations (urban
traffic and urban background sites), and PM,o concentrations measured at five
locations (two urban and one suburban traffic, urban background and regional
background sites). The seasonal and diurnal variation of PM%5 and PMio
concentrations at the measurement sites in 1997 - 1998 are interpreted in terms
of relevant meteorological variables.
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