Prioritising the sources of pollution in European cities: do air quality modelling applications provide consistent responses?
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Published:2020-11-23
Issue:11
Volume:13
Page:5725-5736
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ISSN:1991-9603
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Container-title:Geoscientific Model Development
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language:en
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Short-container-title:Geosci. Model Dev.
Author:
Degraeuwe Bart,Pisoni Enrico,Thunis Philippe
Abstract
Abstract. To take decisions on how to improve air quality, it is
useful to perform a source allocation study that identifies the main sources
of pollution for the area of interest. Often source allocation is performed
with a chemical transport model (CTM) but unfortunately, even if accurate,
this technique is time consuming and complex. Comparing the results of
different CTMs to assess the uncertainty of source allocation results is
even more difficult. In this work, we compare the source allocation (for
PM2.5 yearly averages) in 150 major cities in Europe, based on the results
of two CTMs (CHIMERE and EMEP), approximated with the SHERPA (Screening for
High Emission Reduction Potential on Air) approach. Although contradictory
results occur in some cities, the source allocation results obtained with
the two SHERPA simplified models lead to similar results in most cases, even
though the two CTMs use different input data and configurations.
Publisher
Copernicus GmbH
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