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Air Quality

Local Air Quality Management

Emissions modelling and dispersion

Faced with the growing concerns of the public related to pollutant emissions and related health issues, the aviation sector, and in particular airports, must adopt an effective strategy to address this matter.

Local Air Quality

Indeed, emissions from aircraft and other emission sources at an airport have an effect on the local air quality (LAQ): in particular, emissions of nitrogen oxides (NOx), volatile organic compounds (VOCs), carbon monoxide (CO) and particulate matter (PM) are the most important contributors on LAQ concerns.

However, the airport is not the only source of emissions. Usually airports are surrounded by road networks and supplied by power stations and other industrial facilities. The airport is therefore not the only, and often not even the major source, responsible for all the air pollution measured in the area. The pragmatic solution to understanding the contribution of an airport to the measured air quality at any point around it, is through modelling.

Combining the Emissions inventory with dispersion models can be used to assess the current or the forecast LAQ for planned projects.  Knowing what are the critical pollutants and where the concentration is close or higher than regulated limits, is essential to better understand the problem at its source. New infrastructure projects such as new runways or Terminals can be assessed fr their impact as the geographical distribution of the sources and the amounts will clearly change, as will non airport sources, in particular road traffic, which may have some dependency relationship with any growth of the airport. 

Some of our key references are listed below :

LAQ Assessment, d'Antananarivo-Ivato et Nosy Be-Fascène, Madagascar (EGIS)

Study of the traffic growth and planned infrastructural changes and their compatibility with noise and pollutant emission regulations.

LAQ Assessment, José Martí International Airport, Cuba (EGIS)

Evaluation of the annual pollutant quantities resulting from aircraft operations at the airport (including LTO, taxiing and APU emissions).

Terminal Airspace Development LAQ Assessment, Heathrow and London City Airports (NATS)

Study for airspace development in the northern part of London and review on the changes that will affect the air quality around the airport.

LAQ Monitoring and Analysis, King Khalid International Airport, Saudi Arabia (Saudi Information Technology Co. Ltd.)

Independent and comprehensive analysis of air quality levels at the airport as measured from 10 monitoring pods along with emissions modelling to complement the measurements analysis.

Landing & Takeoff Cycle Emissions (VINCI Airports)

Evaluation of the annual LTO cycle emissions from 18 European and global airports in the context of Scope 3 emissions calculations.


Development, validation and maintainance of EUROCONTROL’s Airport Local Air Quality Studies (ALAQS) tool over the past 12 years with the main objective of providing a four-dimensional emissions inventory for an airport in which the emissions from the various fixed and mobile sources are aggregated and subsequently displayed for analysis.

EGTS – Electric Green Taxiing System (SAFRAN)

Independent analysis of the benefits of Electric Green Taxiing System for SAFRAN.

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