Substance prioritisation for the development of EU Acute Exposure Toxicity Thresholds (AETLs).

The aim of the EU Acute Exposure project, ACUTEX, is to develop a methodology for establishing European Acute Exposure Threshold Levels, EU AETLs, for toxic substances in relation to harm to people by inhalation. The development of AETLs is initially in the context of the risks of major accidents from chemical sites and in particular their regulation through the EU 'Seveso II' Directive. It is intended that AETLs can be used within Member States, where appropriate, to inform decisions on land-use planning and emergency planning.