SERVICE PUBLIC DE WALLONIE - 15 JUILLET 2010. - Arrêté du Gouvernement wallon relatif à l'évaluation et la gestion de la qualité de l'air ambiant
This decree establishes the framework for monitoring and managing air quality within the Walloon region of Belgium. It aims to ensure that ambient air meets specific safety standards to protect public health and the environment through systematic evaluation and management protocols. Local authorities and environmental agencies in Wallonia are affected by these regulations. The decree dictates how air quality is measured and what actions must be taken when pollution levels exceed established limits.