The Luxembourg Energy Air-Quality (LEAQ) model is an Integrated Assessment Model for Air Quality. It is developed since 2009 at the Resource Centre for Environmental Technologies (CRTE), a department of CRP Henri Tudor in Esch-sur-Alzette, Luxembourg. It has been also funded with the help of theĀ Ministry of Higher Education and Research of Luxembourg and the Fond National de la Recherche du Luxembourg.

Especially designed for the Grand Duchy of Luxembourg with its specificities (industrial sector, commuters transports, tank tourism...), LEAQ can assess a great variety of energy scenarios and their consequences in term of dispersion of atmospheric pollutants and ozone production. It can also determinate the optimal energy policies (from an economic point of view) to avoid to exceed the pollution thresholds according to the European directives. LEAQ can also assess the policy of greenhouse gases mitigation and obtain, at the same time, the co-benefit in air quality.

The current version of LEAQ represents the energy sector and the future demands in energy services from 2005 to 2030, every year. From the air quality point of view, LEAQ can represent the meteorological conditions favourable to the production of ozone peaks, based on past events.

Each model or module of LEAQ can be used independently to analyse a specific environmental problem: