PURPOSE

This document contains advice and practical information to assist ICAO Member States in implementing best practices with respect to airport-related air quality. Information related to State requirements, emissions from airport sources, emissions inventories and emissions allocation are addressed throughout the document.

This document also provides a process for States to determine the best approaches and analytical frameworks for assessing airport-related air quality and identifies best practices for different needs or scenarios. It is not intended as a basis for any regulatory action, it does not describe specific projects or actions, nor does it address researchrelated aspects of airport air quality.

As this guidance material was developed to potentially assist all ICAO Member States in implementing best practices in relation to airport-related air quality, it is necessarily broad and extensive. Accordingly, some States may already have in place some, or many, of the processes and measures addressed herein. In such cases, this manual may be used to supplement those processes and measures or used as an additional reference.

Since this guidance material is broad and extensive, it cannot be expected to provide the level of detail necessary to assist States in addressing every issue that might arise, given that there may be unique legal, technical or political situations associated with airports and/or air quality at particular locations. As with any guidance material of broad application, it is advised that States use it as a reference to be tailored to specific circumstances.