Air Quality Forecast PREV'AIR

Project information

Index: 0408R1
Acronym:CITEAIR II
Priority:2: Environment and risk prevention
Sub Theme:Biodiversity and preservation of natural heritage (including air quality)
Location FRANCE Start/End date of the practice
Start: 2003

Topic of the practice

PREV'AIR provides forecasts and maps of ozone, nitrogen oxides and particles, pollutants that are regulated in accordance with their impact on health and the environment. Particle-related information is divided into two categories: PM10, particles with a diameter of less than 10µm, and PM2.5, particles with a diameter of less than 2.5µm.

Good Practice Information

The PREV'AIR system was implemented in 2003 upon an initiative by the Ministry for Ecology, Sustainable Development and Spatial Planning (MEDAD) with the aim of generating and publishing daily air quality forecasts and maps resulting from numerical simulations on different spatial scales. PREV'AIR is the result of cooperation between several partners: The French National Institute for Industrial Environment and Risks (INERIS), the Pierre-Simon Laplace Institute (CNRS), Météo France and the Agency for the Environment and Energy Management (ADEME). Ozone forecasts are available over the Globe, Europe and France; nitrogen dioxide forecasts, over Europe and France; particles are available on a European scale. PREV'AIR provides forecasts and maps of ozone, nitrogen oxides and particles, pollutants that are regulated in accordance with their impact on health and the environment.
Particle-related information is divided into two categories: PM10, particles with a diameter of less than 10µm, and PM2.5, particles with a diameter of less than 2.5µm.

The air quality forecasts published every day are the result of numerical simulations conducted with the help of eulerian chemistry-transport models that allow the calculation of the evolution of photochemical pollution in the lower layer of the atmosphere on different spatial scales (Global, Europe and France). The models that PREV'AIR uses allow to calculate the evolution of pollutant concentrations over time that are linked to physical-chemical processes at each node of a three-dimensional grid that covers the lower layer of the atmosphere above the area being studied. The spatial resolution varies in accordance with the geographical extension of the area

Evidence of success

PREV'AIR offers a multiute of air quality forecasted maps for the spatial areas France, Europe and global. These maps are accessible for the public from the internet. In detail PREV'AIR offers the follwoing maps:
- For Ozone the areas covered are France, Europe and Global
- For Nitrogen Dioxide and Particulates (PM 10 and PM2,5) the areas France and Europe are covered.
The forecasts are available for today, tomorrow and the day after tomorrow.
Furthermore the know-how and the results of PREV'AIR are applied in several European projects. In addition the European Environment Agency (EEA) uses the it in their Eye-On-Earth System.

Contact details to obtain further information on the practice

Laurence Rouil

National Institute for Industrial Environment and Risks (INERIS)

laurence.rouil@ineris.fr

www.prevair.org

Annex completed on: 04-23-2011

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