CT1 - Source Apportionment

A. Clappier (Univ. Strasbourg)
G. Pirovano (RSE Italy)
More information

Guidances and proposals


The main aim of this crosscutting activity is to deliver guidance on the fitness for purpose of different source apportionment approaches in the overall context of air quality management practices. Activities focus on:

  • 1 Consolidating the fitness for purpose source apportionment guide, in particular with the remaining open issues (e.g., use of combined approaches, theoretical vs. practical range of applications, extension to other species than particulate matter, etc.).
  • 2 Supporting the e-Reporting process in relation to the source apportionment data-flow.
  • 3 Supporting pilot regions and cities in their source-apportionment estimates (first stage of an air quality plan).
  • 4 Interacting with CEN to take advantage of synergies and contribute to standardization.

Related Documents

Related Publications

Related Tools and datasets

Po-Valley (IT) dataset on source apportionment

This dataset includes results obtained with the CAMx model at 5 km resolution over the Po-Valley (Italy). It consists of a series of simulations corresponding to different emission reduction scenarios for three sectors: agriculture, transport and industry. These three sectors agriculture, transport and industry are reduced independently from each other and/or in a combined way by 50 and 100%. All possible combinations of reductions are performed leading to seven different simulations Based on the same set of input data, an additional simulation has been performed with CAMx using the built-in tagging species module (PSAT). All simulations are performed with a resolution of 5 km for an entire meteorological year (2010). All pollutant species are available at daily (PM) or hourly (O3, NO2…) frequency. The dataset is provided with a graphical interface that allows visualizing the differences between tagging and brute force approaches or quantifying the non-linear interaction terms among sectors. The dataset and tool are available on request (mail to philippe.thunis@ec.europa.eu)

Other resources

A website dedicated to source apportionment is also available at https://source-apportionment.jrc.ec.europa.eu