Philippe Thunis

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In this paper, the Integrated Assessment of air quality is dealt with at regional scale. First the paper describes the main challenges to tackle current air pollution control, including economic aspects. Then it proposes a novel approach to manage the problem, presenting its mathematical formalization and describing its practical implementation into the(More)
Despite increasing emission controls, particulate matter (PM) has remained a critical issue for European air quality in recent years. The various sources of PM, both from primary particulate emissions as well as secondary formation from precursor gases, make this a complex problem to tackle. In order to allow for credible predictions of future(More)
The methodology was developed within the EC4MACS (European Consortium for the Modelling of Air pollution and Climate Strategies) project with financial contributions of the LIFE financial instrument of the European Community. Monitoring data used in this project were obtained from the European air quality database (AirBase) maintained by the European(More)
The sensitivity of aerosol in Europe to two different emission inventories and temporal distribution of emissions A. de Meij, M. Krol, F. Dentener, E. Vignati, C. Cuvelier, and P. Thunis Institute for Environment and Sustainability, Joint Research Centre, European Commission, Ispra, Italy now at: SRON, Utrecht, The Netherlands, and Wageningen University,(More)
Accuracy of photochemical air quality model results depends not only on the accuracy of the meteorological fields supplied to the model, but also the frequency that those fields are updated. Tests in two and three dimension, with and without chemistry, were run to identify errors that can arise due to the frequency that models are linked (or coupled) to(More)
To cope with computing power limitations, air quality models that are used in integrated assessment applications are generally approximated by simpler expressions referred to as "source-receptor relationships (SRR)". In addition to speed, it is desirable for the SRR also to be spatially flexible (application over a wide range of situations) and to require a(More)
Regional and local authorities have the obligation to design air quality plans and assess their impacts when concentration levels exceed the limit values. Because these limit values cover both short- (day) and long-term (year) effects, air quality plans also follow these two formats. In this work, we propose a methodology to analyze modeled air quality(More)
The Po-valley located in northern Italy at the footstep of the Alps is characterized by a high density of anthropogenic emissions and by the frequent occurrence of stagnant meteorological conditions. The area has been identified as one hot spot place where pollution levels will remain problematic in spite of the application of the current European(More)