Title: Determinating the influence of different PM10 sources on air quality in Ljubljana basin with CALPUFF dispersion model

Authors: Matic Ivančič; Rudi Vončina

Addresses: Milan Vidmar Electric Power Research Institute, Hajdrihova 2, Ljubljana, Slovenia ' Milan Vidmar Electric Power Research Institute, Hajdrihova 2, Ljubljana, Slovenia

Abstract: Ljubljana has an unfavourable geographical location in the basin, almost entirely surrounded by high hills. Winds in the basin are often weak and situations with temperature inversion are very frequent, therefore, many PM10 daily limit value exceedances were observed in 2011. The Directive 2008/50/EC (EU, 2008) requires member states to adjust or provide new air quality plans in order to comply with air quality standards for over-polluted area in near future. This is why it is necessary to provide the action plan for PM10 pollution reduction in Ljubljana. Firstly, it is important to determine the sources of PM10 particles and its spatial distribution. In the present study traffic emissions as the major local emission source were estimated with the NEMO pollution model. The map of important point sources in Ljubljana was prepared as well as emissions from these sources were estimated. This detailed emissions database was then introduced into the CALPUFF/CALMET modelling system coupled with the meso-scale meteorological model ALADIN.

Keywords: Ljubljana basin; CALPUFF; ALADIN; traffic pollution; industral pollution; meso-scale meteorology; air quality; environmental pollution; PM10; source determination; local scale; network emission model; NEMO; Slovenia; air pollution; vehicle emissions; dispersion modelling.

DOI: 10.1504/IJEP.2014.065126

International Journal of Environment and Pollution, 2014 Vol.54 No.2/3/4, pp.251 - 261

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 13 Oct 2014 *

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